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Dockerfile

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+# New NAI - Hugging Face Spaces Dockerfile (Node.js/Express)
+# Ensures binding to $PORT and 0.0.0.0, no browser auto-open.
+
+FROM node:20-bullseye-slim
+
+ENV NODE_ENV=production \
+    HOST=0.0.0.0 \
+    AUTO_OPEN_BROWSER=0
+
+WORKDIR /app
+
+# Install production deps first (layer cache friendly)
+COPY package.json package-lock.json* ./
+RUN npm ci --only=production || npm install --only=production
+
+# Copy the rest of the app
+COPY . .
+
+# Optional (uncomment if curl-based healthcheck is used)
+# RUN apt-get update && apt-get install -y --no-install-recommends curl && rm -rf /var/lib/apt/lists/*
+
+# Spaces provides $PORT. We just run and listen on host 0.0.0.0.
+EXPOSE 7860
+CMD ["node", "server.js"]

README.md

@@ -1,11 +1,47 @@
----
-title: Newnai2
-emoji: 🏃
-colorFrom: gray
-colorTo: purple
-sdk: docker
-pinned: false
-license: apache-2.0
----
-
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+---
+title: New NAI (Node/Express) - HF Spaces
+emoji: 🧩
+colorFrom: green
+colorTo: gray
+sdk: docker
+app_port: 7860
+pinned: false
+---
+
+New NAI（Node/Express 版本）— 适配 Hugging Face Spaces（Docker）
+
+一、目录说明
+- 服务入口: [server.js](server.js:1)
+- 前端页面: [frontend/index.html](frontend/index.html:1)（原生 HTML/CSS/JS）
+- 资源脚本: [frontend/assets/app.js](frontend/assets/app.js:1)、[frontend/assets/style.css](frontend/assets/style.css:1)
+- 上游代理: [novelai.js](novelai.js:1)（调用 NovelAI，解压 ZIP，返回 data URL）
+- 铃声资源: [ring/new-notification-3-398649.mp3](ring/new-notification-3-398649.mp3:1)
+- NPM 清单: [package.json](package.json:1)
+- Docker 配置: [Dockerfile](Dockerfile:1)
+
+二、运行方式（在 Hugging Face Spaces 上）
+- Space 类型: Docker
+- 本仓库根目录包含 [Dockerfile](Dockerfile:1)；Spaces 会读取环境变量 PORT，并在容器内以 0.0.0.0:$PORT 启动。
+- Node 版本基于官方 node:20-bullseye-slim 镜像；入口命令为:
+  - node [server.js](server.js:1)
+- 服务内已按优先级解析端口: 环境变量 PORT > 配置文件 > 默认 9180，且在 Dockerfile 中已设置 HOST=0.0.0.0
+
+三、环境与配置
+- Web 端访问地址由 Spaces 分配，容器内监听 $PORT/0.0.0.0。
+- 前端“配置”页填写并保存 NovelAI Key（Token），后端通过 Authorization Bearer 与上游通信。
+- 目录选择/打开文件夹等本地功能在 HF 环境将受限；不会影响生成流程。
+
+四、接口（与本地一致）
+- 健康检查: GET /api/health
+- 配置: GET /api/config、PUT /api/config
+- 生成：
+  - POST /api/generate/t2i
+  - POST /api/generate/i2i
+  - POST /api/generate/inpaint
+- 静态资源：
+  - / → [frontend/index.html](frontend/index.html:1)
+  - /ring → [ring/new-notification-3-398649.mp3](ring/new-notification-3-398649.mp3:1)
+
+五、注意事项（HF 环境差异）
+- 不支持系统级文件夹选择/打开；如需输出路径请在配置中手填或使用默认。
+- 首次请求可能遇到上游限流（429），已实现指数退避重试；可稍后再试。

app.py

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+import os
+
+# Hugging Face Spaces entrypoint: run FastAPI app on $PORT
+from backend.app import app
+
+if __name__ == "__main__":
+    port = int(os.environ.get("PORT", "7860"))
+    import uvicorn
+    uvicorn.run(app, host="0.0.0.0", port=port)

backend/__init__.py

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+# Package marker for backend

backend/app.py

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+from __future__ import annotations
+
+import base64
+import os
+import platform
+import tempfile
+from pathlib import Path
+from typing import Any, Dict
+
+from fastapi import FastAPI, HTTPException
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
+from fastapi.staticfiles import StaticFiles
+
+from .config import AppConfig, load_config, save_config
+from .models import ConfigUpdate, I2IRequest, InpaintRequest, T2IRequest
+from .services.novelai import generate_i2i, generate_inpaint, generate_t2i
+
+
+def _ensure_x64(n: int) -> int:
+    if n <= 64:
+        return 64
+    if n % 64 == 0:
+        return n
+    return ((n // 64) + 1) * 64 if (n / 64) % 1 >= 0.5 else (n // 64) * 64
+
+
+def _as_data_uri(b64: str) -> str:
+    return f"data:image/png;base64,{b64}"
+
+
+app = FastAPI(title="New NAI", version="1.0.0")
+
+# CORS
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=False,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+
+@app.get("/api/health")
+def health() -> Dict[str, Any]:
+    return {"status": "ok"}
+
+
+@app.get("/api/config")
+def get_config() -> Dict[str, Any]:
+    cfg: AppConfig = load_config()
+    return cfg.model_dump()
+
+
+@app.put("/api/config")
+def update_config(update: ConfigUpdate) -> Dict[str, Any]:
+    cfg = load_config()
+    data = update.model_dump(exclude_none=True)
+    for k, v in data.items():
+        setattr(cfg, k, v)
+    save_config(cfg)
+    return cfg.model_dump()
+
+
+@app.get("/api/select-output-dir")
+def api_select_output_dir() -> Dict[str, Any]:
+    """
+    在本机弹出目录选择器并返回选择的目录路径。
+    多重回退方案：
+      1) tkinter（如可用）
+      2) Windows: PowerShell + Shell.Application.BrowseForFolder
+      3) macOS: osascript choose folder
+      4) Linux: zenity --file-selection --directory
+    全部失败则返回 500。
+    """
+    # 1) tkinter
+    try:
+        import tkinter as tk  # type: ignore
+        from tkinter import filedialog  # type: ignore
+        root = tk.Tk()
+        root.withdraw()
+        path = filedialog.askdirectory(title="选择保存目录")
+        try:
+            root.destroy()
+        except Exception:
+            pass
+        if path:
+            return {"path": path}
+    except Exception:
+        pass
+
+    system = platform.system()
+    # 2) Windows: PowerShell COM Shell.Application
+    if system == "Windows":
+        # 2a) PowerShell COM Shell.Application
+        try:
+            import subprocess
+            ps_cmd = r'$f=(New-Object -ComObject Shell.Application).BrowseForFolder(0,"选择保存目录",0); if($f){$f.Self.Path}'
+            res = subprocess.run(
+                ["powershell", "-NoProfile", "-Command", ps_cmd],
+                capture_output=True, text=True, timeout=60
+            )
+            out = (res.stdout or "").strip()
+            if out:
+                return {"path": out}
+        except Exception:
+            pass
+        # 2b) VBScript + cscript（兼容禁用 PowerShell 的环境）
+        try:
+            import subprocess
+            vbs = (
+                'Set sh = CreateObject("Shell.Application")\n'
+                'Set f = sh.BrowseForFolder(0, "选择保存目录", 0)\n'
+                'If (Not f Is Nothing) Then\n'
+                '  WScript.Echo f.Self.Path\n'
+                'End If\n'
+            )
+            with tempfile.NamedTemporaryFile(delete=False, suffix=".vbs") as tf:
+                tf.write(vbs.encode("utf-8"))
+                tf_path = tf.name
+            try:
+                res = subprocess.run(
+                    ["cscript", "//nologo", tf_path],
+                    capture_output=True, text=True, timeout=60
+                )
+            finally:
+                try:
+                    os.remove(tf_path)
+                except Exception:
+                    pass
+            out = (res.stdout or "").strip()
+            if out:
+                return {"path": out}
+        except Exception:
+            pass
+
+    # 3) macOS: AppleScript choose folder
+    if system == "Darwin":
+        try:
+            import subprocess
+            script = 'tell application "System Events" to POSIX path of (choose folder with prompt "选择保存目录")'
+            res = subprocess.run(
+                ["osascript", "-e", script],
+                capture_output=True, text=True, timeout=60
+            )
+            out = (res.stdout or "").strip()
+            if out:
+                return {"path": out}
+        except Exception:
+            pass
+
+    # 4) Linux: zenity
+    if system == "Linux":
+        try:
+            import subprocess
+            res = subprocess.run(
+                ["zenity", "--file-selection", "--directory", "--title=选择保存目录"],
+                capture_output=True, text=True, timeout=60
+            )
+            out = (res.stdout or "").strip()
+            if out:
+                return {"path": out}
+        except Exception:
+            pass
+
+    raise HTTPException(status_code=500, detail="无法打开文件夹选择器：所有策略均失败")
+
+
+@app.post("/api/open-dir")
+def api_open_dir(payload: Dict[str, Any]) -> Dict[str, Any]:
+    """
+    打开指定目录；若未传 path，则打开配置中的 output_dir。
+    Windows 使用 os.startfile，macOS 用 open，Linux 用 xdg-open。
+    """
+    path = (payload or {}).get("path") or ""
+    if not path:
+        cfg = load_config()
+        path = cfg.output_dir
+    if not path:
+        raise HTTPException(status_code=400, detail="未提供路径且配置中未设置 output_dir")
+
+    p = Path(path)
+    try:
+        p.mkdir(parents=True, exist_ok=True)
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"创建目录失败: {e}") from e
+
+    try:
+        if hasattr(os, "startfile"):
+            os.startfile(str(p))  # Windows
+        elif platform.system() == "Darwin":
+            import subprocess
+            subprocess.run(["open", str(p)], check=False)
+        else:
+            import subprocess
+            subprocess.run(["xdg-open", str(p)], check=False)
+        return {"ok": True, "path": str(p)}
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"无法打开目录: {e}") from e
+
+
+@app.post("/api/generate/t2i")
+def api_t2i(req: T2IRequest):
+    cfg = load_config()
+    if not cfg.key:
+        raise HTTPException(status_code=400, detail="尚未配置 key，请先在配置中设置 key。")
+
+    width = _ensure_x64(req.width or 768)
+    height = _ensure_x64(req.height or 768)
+
+    try:
+        b64, saved = generate_t2i(
+            cfg,
+            prompt=req.prompt,
+            negative=req.negative or "",
+            width=width,
+            height=height,
+            scale=req.scale,
+            steps=req.steps,
+            sampler=req.sampler,
+            noise_schedule=req.noise_schedule,
+            seed=req.seed,
+            variety=req.variety,
+            decrisp=req.decrisp,
+            cfg_rescale=req.cfg_rescale,
+        )
+        return {"image_base64": _as_data_uri(b64), "saved_path": saved}
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e)) from e
+
+
+@app.post("/api/generate/i2i")
+def api_i2i(req: I2IRequest):
+    cfg = load_config()
+    if not cfg.key:
+        raise HTTPException(status_code=400, detail="尚未配置 key，请先在配置中设置 key。")
+
+    width = _ensure_x64(req.width or 768)
+    height = _ensure_x64(req.height or 768)
+
+    try:
+        b64, saved = generate_i2i(
+            cfg,
+            positive=req.positive,
+            negative=req.negative or "",
+            image_base64=req.image_base64,
+            width=width,
+            height=height,
+            scale=req.scale,
+            steps=req.steps,
+            sampler=req.sampler,
+            noise_schedule=req.noise_schedule,
+            strength=req.strength or 0.5,
+            noise=req.noise or 0.0,
+            seed=req.seed,
+            variety=req.variety,
+            decrisp=req.decrisp,
+            cfg_rescale=req.cfg_rescale,
+        )
+        return {"image_base64": _as_data_uri(b64), "saved_path": saved}
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e)) from e
+
+
+@app.post("/api/generate/inpaint")
+def api_inpaint(req: InpaintRequest):
+    cfg = load_config()
+    if not cfg.key:
+        raise HTTPException(status_code=400, detail="尚未配置 key，请先在配置中设置 key。")
+
+    width = _ensure_x64(req.width or 768)
+    height = _ensure_x64(req.height or 768)
+
+    try:
+        b64, saved = generate_inpaint(
+            cfg,
+            positive=req.positive,
+            negative=req.negative or "",
+            image_base64=req.image_base64,
+            mask_base64=req.mask_base64,
+            add_original_image=req.add_original_image,
+            width=width,
+            height=height,
+            scale=req.scale,
+            steps=req.steps,
+            sampler=req.sampler,
+            noise_schedule=req.noise_schedule,
+            strength=req.strength or 0.5,
+            noise=req.noise or 0.0,
+            seed=req.seed,
+            variety=req.variety,
+            decrisp=req.decrisp,
+            cfg_rescale=req.cfg_rescale,
+        )
+        return {"image_base64": _as_data_uri(b64), "saved_path": saved}
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e)) from e
+
+
+# 前端静态资源（仅保留必要 UI，无教程/仓库链接）
+_frontend_dir = Path(__file__).resolve().parent.parent / "frontend"
+# 提示音静态资源映射：/ring -> 项目根/ring 目录（例如 G:\NOVELAI\New NAI\ring）
+_ring_dir = Path(__file__).resolve().parent.parent / "ring"
+app.mount("/ring", StaticFiles(directory=_ring_dir, html=False), name="ring")
+app.mount("/", StaticFiles(directory=_frontend_dir, html=True), name="frontend")

backend/config.json

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+{
+  "key": "",
+  "model": "nai-diffusion-4-5-full",
+  "sampler": "k_euler",
+  "steps": 28,
+  "scale": 5.0,
+  "cfg_rescale": 0.0,
+  "noise_schedule": "karras",
+  "uc_preset": 4,
+  "quality_toggle": true,
+  "legacy_uc": false,
+  "port": 9180,
+  "save_output": true
+}

backend/config.py

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+from __future__ import annotations
+from pydantic import BaseModel
+from typing import Optional
+from pathlib import Path
+import json
+
+CONFIG_FILE = Path(__file__).parent / "config.json"
+
+
+class AppConfig(BaseModel):
+    # 将 token 重命名为 key
+    key: Optional[str] = None
+
+    # 图片生成默认参数（与原项目保持一致的关键项）
+    model: str = "nai-diffusion-3"
+    sampler: str = "k_euler"
+    steps: int = 28
+    scale: float = 5.0
+    cfg_rescale: float = 0.0
+    noise_schedule: Optional[str] = "karras"
+    uc_preset: int = 4
+    quality_toggle: bool = True
+    legacy_uc: bool = False
+
+    # 通用配置
+    port: int = 9180
+    save_output: bool = True
+    # 输出根目录（默认：项目根/output）
+    output_dir: str = str(Path(__file__).resolve().parent.parent / "output")
+    # 颜色方案：auto | bamboo | custom（前端即时应用）
+    color_scheme: str = "auto"
+    custom_primary: Optional[str] = None
+    # 提示音配置
+    sound_enabled: bool = False
+    sound_url: Optional[str] = "/ring/ring.mp3"
+
+
+def load_config() -> AppConfig:
+    if CONFIG_FILE.exists():
+        with open(CONFIG_FILE, "r", encoding="utf-8") as f:
+            data = json.load(f)
+        return AppConfig(**data)
+    cfg = AppConfig()
+    save_config(cfg)
+    return cfg
+
+
+def save_config(cfg: AppConfig) -> None:
+    CONFIG_FILE.parent.mkdir(parents=True, exist_ok=True)
+    with open(CONFIG_FILE, "w", encoding="utf-8") as f:
+        json.dump(cfg.model_dump(), f, ensure_ascii=False, indent=2)

backend/models.py

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+from __future__ import annotations
+from pydantic import BaseModel
+from typing import Optional
+
+
+# 文生图
+class T2IRequest(BaseModel):
+    prompt: str
+    negative: Optional[str] = ""
+    width: Optional[int] = 768
+    height: Optional[int] = 768
+    scale: Optional[float] = None
+    steps: Optional[int] = None
+    sampler: Optional[str] = None
+    noise_schedule: Optional[str] = None
+    seed: Optional[int] = -1
+    variety: Optional[bool] = False
+    decrisp: Optional[bool] = False
+    cfg_rescale: Optional[float] = None
+
+
+# 图生图
+class I2IRequest(BaseModel):
+    positive: str
+    negative: Optional[str] = ""
+    image_base64: str
+    width: Optional[int] = None
+    height: Optional[int] = None
+    scale: Optional[float] = None
+    steps: Optional[int] = None
+    sampler: Optional[str] = None
+    noise_schedule: Optional[str] = None
+    strength: Optional[float] = 0.5
+    noise: Optional[float] = 0.0
+    seed: Optional[int] = -1
+    variety: Optional[bool] = False
+    decrisp: Optional[bool] = False
+    cfg_rescale: Optional[float] = None
+
+
+# 局部重绘
+class InpaintRequest(BaseModel):
+    positive: str
+    negative: Optional[str] = ""
+    image_base64: str
+    mask_base64: str
+    add_original_image: bool = False
+    width: Optional[int] = None
+    height: Optional[int] = None
+    scale: Optional[float] = None
+    steps: Optional[int] = None
+    sampler: Optional[str] = None
+    noise_schedule: Optional[str] = None
+    strength: Optional[float] = 0.5
+    noise: Optional[float] = 0.0
+    seed: Optional[int] = -1
+    variety: Optional[bool] = False
+    decrisp: Optional[bool] = False
+    cfg_rescale: Optional[float] = None
+
+
+# 配置更新
+class ConfigUpdate(BaseModel):
+    key: Optional[str] = None
+    model: Optional[str] = None
+    sampler: Optional[str] = None
+    steps: Optional[int] = None
+    scale: Optional[float] = None
+    cfg_rescale: Optional[float] = None
+    noise_schedule: Optional[str] = None
+    uc_preset: Optional[int] = None
+    quality_toggle: Optional[bool] = None
+    legacy_uc: Optional[bool] = None
+    port: Optional[int] = None
+    save_output: Optional[bool] = None
+    output_dir: Optional[str] = None
+    # 新增：颜色配置（背景方案）
+    color_scheme: Optional[str] = None   # auto | bamboo | custom
+    custom_primary: Optional[str] = None # 自定义背景主色（如 #7ba23f）
+    # 新增：提示音配置
+    sound_enabled: Optional[bool] = None
+    sound_url: Optional[str] = None

backend/server.py

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+from __future__ import annotations
+
+import threading
+import time
+import webbrowser
+
+import uvicorn
+
+from .app import app
+from .config import load_config
+
+
+def _open_browser_later(url: str, delay: float = 1.5):
+    def _opener():
+        time.sleep(delay)
+        try:
+            webbrowser.open(url)
+        except Exception:
+            pass
+
+    t = threading.Thread(target=_opener, daemon=True)
+    t.start()
+
+
+if __name__ == "__main__":
+    cfg = load_config()
+    port = int(cfg.port or 11451)
+    url = f"http://127.0.0.1:{port}"
+    _open_browser_later(url)
+    # 直接传 app 实例，避免模块路径问题
+    uvicorn.run(app, host="127.0.0.1", port=port, reload=False)

backend/services/novelai.py

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+from __future__ import annotations
+
+import base64
+import io
+import json
+import os
+import random
+import time
+import zipfile
+from typing import Optional, Tuple
+
+import httpx
+
+from ..config import AppConfig, load_config
+
+NOVELAI_ENDPOINT = "https://image.novelai.net/ai/generate-image"
+
+
+def _headers(key: Optional[str]) -> dict:
+    if not key:
+        raise ValueError("未配置 key，请先在配置中设置 key。")
+    return {
+        "Accept": "application/zip, */*;q=0.5",
+        "Accept-Encoding": "gzip, deflate, br",
+        "Accept-Language": "zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6",
+        "Authorization": f"Bearer {key}",
+        "Content-Type": "application/json",
+        "Origin": "https://novelai.net",
+        "Referer": "https://novelai.net/",
+        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36",
+    }
+
+
+def _rand_seed(seed: Optional[int]) -> int:
+    if seed is None or seed == -1:
+        return random.randint(1_000_000_000, 9_999_999_999)
+    return int(seed)
+
+
+def _post_and_unzip_image(payload: dict, key: str, max_retries: int = 5, backoff: float = 1.5) -> bytes:
+    """
+    使用 HTTP/2 与上游通信，提升兼容性与稳定性。
+    """
+    attempt = 0
+    # 复用连接提升性能
+    with httpx.Client(http2=True, headers=_headers(key), timeout=120.0) as client:
+        while True:
+            attempt += 1
+            try:
+                resp = client.post(NOVELAI_ENDPOINT, json=payload)
+                # 频率限制，指数退避重试
+                if resp.status_code == 429 and attempt <= max_retries:
+                    time.sleep(backoff * attempt)
+                    continue
+                resp.raise_for_status()
+                with zipfile.ZipFile(io.BytesIO(resp.content), mode="r") as zf:
+                    with zf.open("image_0.png") as image:
+                        return image.read()
+            except httpx.HTTPStatusError as http_err:
+                # 返回上游的错误文本，便于定位（如 key 无效、参数不合法、模型不支持等）
+                try:
+                    detail = resp.json()
+                except Exception:
+                    detail = getattr(resp, "text", str(http_err))
+                status = getattr(resp, "status_code", "unknown")
+                raise ValueError(f"上游生成失败（HTTP {status}）: {detail}") from http_err
+            except httpx.RequestError as req_err:
+                raise ValueError(f"网络错误: {req_err}") from req_err
+
+
+def _ensure_dir(p: str) -> None:
+    os.makedirs(p, exist_ok=True)
+
+
+def _save_image_bytes(img: bytes, folder: str) -> str:
+    _ensure_dir(folder)
+    name = f"{int(time.time()*1000)}_{random.randint(1000,9999)}.png"
+    path = os.path.join(folder, name)
+    with open(path, "wb") as f:
+        f.write(img)
+    return path
+
+
+def _b64(img: bytes) -> str:
+    return base64.b64encode(img).decode("utf-8")
+
+
+def _build_t2i_json(cfg: AppConfig, *, prompt: str, negative: str, width: int, height: int,
+                    scale: Optional[float], steps: Optional[int], sampler: Optional[str],
+                    noise_schedule: Optional[str], seed: Optional[int],
+                    variety: Optional[bool], decrisp: Optional[bool], cfg_rescale: Optional[float]) -> dict:
+    is_v4 = "nai-diffusion-4" in (cfg.model or "")
+    if is_v4:
+        # v4 系列参数严格对齐原项目 json_for_t2i_v4 结构，避免 400/500
+        resolved_sampler = (sampler or cfg.sampler) or "k_euler"
+        if resolved_sampler == "ddim_v3":
+            resolved_sampler = "k_euler"
+        params = {
+            "params_version": 3,
+            "width": int(width),
+            "height": int(height),
+            "scale": float(scale if scale is not None else cfg.scale),
+            "sampler": resolved_sampler,
+            "steps": int(steps if steps is not None else cfg.steps),
+            "n_samples": 1,
+            "ucPreset": cfg.uc_preset,
+            "qualityToggle": bool(cfg.quality_toggle),
+            "autoSmea": True,
+            "dynamic_thresholding": bool(decrisp if decrisp is not None else False),
+            "controlnet_strength": 1,
+            "legacy": False,
+            "add_original_image": False,
+            "cfg_rescale": float(cfg_rescale if cfg_rescale is not None else cfg.cfg_rescale),
+            "legacy_v3_extend": False,
+            "seed": _rand_seed(seed),
+            "use_coords": False,
+            "legacy_uc": bool(cfg.legacy_uc),
+            "characterPrompts": [],
+            "negative_prompt": negative or "",
+            "reference_image_multiple": [],
+            "reference_information_extracted_multiple": [],
+            "reference_strength_multiple": [],
+            "deliberate_euler_ancestral_bug": False,
+            "prefer_brownian": True,
+            "stream": "msgpack",
+        }
+        return {
+            "input": prompt,
+            "model": cfg.model,
+            "action": "generate",
+            "parameters": {
+                **params,
+                "v4_prompt": {
+                    "caption": {
+                        "base_caption": prompt,
+                        "char_captions": [],
+                    },
+                    "use_coords": False,
+                    "use_order": True,
+                },
+                "v4_negative_prompt": {
+                    "caption": {
+                        "base_caption": negative or "",
+                        "char_captions": [],
+                    },
+                    "legacy_uc": bool(cfg.legacy_uc),
+                },
+            },
+            "use_new_shared_trial": True,
+        }
+    else:
+        # 计算与原项目一致的 skip_cfg_above_sigma
+        model_name = (cfg.model or "").lower()
+        if variety:
+            if "nai-diffusion-4-5" in model_name:
+                skip_val = 58
+            elif "nai-diffusion-4" in model_name:
+                skip_val = 19.343056794463642
+            else:
+                skip_val = 19
+        else:
+            skip_val = None
+
+        resolved_sampler_nv4 = (sampler or cfg.sampler) or "k_euler"
+
+        payload = {
+            "input": prompt,
+            "model": cfg.model,
+            "action": "generate",
+            "parameters": {
+                "params_version": 3,
+                "width": int(width),
+                "height": int(height),
+                "scale": float(scale if scale is not None else cfg.scale),
+                "sampler": resolved_sampler_nv4,
+                "steps": int(steps if steps is not None else cfg.steps),
+                "n_samples": 1,
+                "ucPreset": cfg.uc_preset,
+                "qualityToggle": bool(cfg.quality_toggle),
+                "sm": False,
+                "sm_dyn": False,
+                "dynamic_thresholding": bool(decrisp if decrisp is not None else False),
+                "controlnet_strength": 1,
+                "legacy": False,
+                "add_original_image": False,
+                "uncond_scale": 1,
+                "cfg_rescale": float(cfg_rescale if cfg_rescale is not None else cfg.cfg_rescale),
+                "legacy_v3_extend": False,
+                "skip_cfg_above_sigma": skip_val,
+                "seed": _rand_seed(seed),
+                "negative_prompt": negative or "",
+                "reference_image_multiple": [],
+                "reference_information_extracted_multiple": [],
+                "reference_strength_multiple": [],
+            },
+        }
+        # 僅当采样器不是 ddim_v3 时再发送 noise_schedule（对齐原项目）
+        if noise_schedule and resolved_sampler_nv4 != "ddim_v3":
+            payload["parameters"]["noise_schedule"] = noise_schedule
+        return payload
+
+
+def _build_i2i_json(cfg: AppConfig, *, positive: str, negative: str, image_base64: str,
+                    width: Optional[int], height: Optional[int],
+                    scale: Optional[float], steps: Optional[int], sampler: Optional[str],
+                    noise_schedule: Optional[str], strength: float, noise: float, seed: Optional[int],
+                    variety: Optional[bool], decrisp: Optional[bool], cfg_rescale: Optional[float]) -> dict:
+    payload = {
+        "input": positive,
+        "model": cfg.model,
+        "action": "img2img",
+        "parameters": {
+            "width": int(width or 768),
+            "height": int(height or 768),
+            "scale": float(scale if scale is not None else cfg.scale),
+            "sampler": sampler or cfg.sampler,
+            "steps": int(steps if steps is not None else cfg.steps),
+            "n_samples": 1,
+            "strength": float(strength),
+            "noise": float(noise),
+            "ucPreset": cfg.uc_preset,
+            "qualityToggle": bool(cfg.quality_toggle),
+            "sm": False,
+            "sm_dyn": False,
+            "dynamic_thresholding": bool(decrisp if decrisp is not None else False),
+            "controlnet_strength": 1,
+            "legacy": False,
+            "add_original_image": False,
+            "uncond_scale": 1,
+            "cfg_rescale": float(cfg_rescale if cfg_rescale is not None else cfg.cfg_rescale),
+            "legacy_v3_extend": False,
+            "skip_cfg_above_sigma": 58 if (variety or False) else None,
+            "params_version": 3,
+            "seed": _rand_seed(seed),
+            "image": image_base64,
+            "extra_noise_seed": _rand_seed(seed),
+            "negative_prompt": negative or "",
+            "reference_image_multiple": [],
+            "reference_information_extracted_multiple": [],
+            "reference_strength_multiple": [],
+        },
+    }
+    if noise_schedule:
+        payload["parameters"]["noise_schedule"] = noise_schedule
+    return payload
+
+
+def _build_inpaint_json(cfg: AppConfig, *, positive: str, negative: str, image_base64: str, mask_base64: str,
+                        add_original_image: bool,
+                        width: Optional[int], height: Optional[int],
+                        scale: Optional[float], steps: Optional[int], sampler: Optional[str],
+                        noise_schedule: Optional[str], strength: float, noise: float, seed: Optional[int],
+                        variety: Optional[bool], decrisp: Optional[bool], cfg_rescale: Optional[float]) -> dict:
+    # 模型名：v3 为 xxx-inpainting，按原项目逻辑做兼容
+    model = f"{cfg.model}-inpainting" if cfg.model not in ["nai-diffusion-2", "nai-diffusion-4-curated-preview", "nai-diffusion-4-full"] else "nai-diffusion-3-inpainting"
+    payload = {
+        "input": positive,
+        "model": model,
+        "action": "infill",
+        "parameters": {
+            "width": int(width or 768),
+            "height": int(height or 768),
+            "scale": float(scale if scale is not None else cfg.scale),
+            "sampler": sampler or cfg.sampler,
+            "steps": int(steps if steps is not None else cfg.steps),
+            "n_samples": 1,
+            "strength": float(strength),
+            "noise": float(noise),
+            "ucPreset": cfg.uc_preset,
+            "qualityToggle": bool(cfg.quality_toggle),
+            "sm": False,
+            "sm_dyn": False,
+            "dynamic_thresholding": bool(decrisp if decrisp is not None else False),
+            "controlnet_strength": 1,
+            "legacy": False,
+            "add_original_image": bool(add_original_image),
+            "uncond_scale": 1,
+            "cfg_rescale": float(cfg_rescale if cfg_rescale is not None else cfg.cfg_rescale),
+            "legacy_v3_extend": False,
+            "skip_cfg_above_sigma": 58 if (variety or False) else None,
+            "params_version": 3,
+            "seed": _rand_seed(seed),
+            "image": image_base64,
+            "mask": mask_base64,
+            "extra_noise_seed": _rand_seed(seed),
+            "negative_prompt": negative or "",
+            "reference_image_multiple": [],
+            "reference_information_extracted_multiple": [],
+            "reference_strength_multiple": [],
+        },
+    }
+    if noise_schedule:
+        payload["parameters"]["noise_schedule"] = noise_schedule
+    return payload
+
+
+def generate_t2i(cfg: AppConfig, *,
+                 prompt: str, negative: str = "",
+                 width: int = 768, height: int = 768,
+                 scale: Optional[float] = None, steps: Optional[int] = None, sampler: Optional[str] = None,
+                 noise_schedule: Optional[str] = None, seed: Optional[int] = -1,
+                 variety: Optional[bool] = False, decrisp: Optional[bool] = False,
+                 cfg_rescale: Optional[float] = None,
+                 save_folder: str = "../../output/t2i") -> Tuple[str, str]:
+    payload = _build_t2i_json(cfg, prompt=prompt, negative=negative, width=width, height=height,
+                              scale=scale, steps=steps, sampler=sampler, noise_schedule=noise_schedule,
+                              seed=seed, variety=variety, decrisp=decrisp, cfg_rescale=cfg_rescale)
+    img = _post_and_unzip_image(payload, cfg.key or "")
+    base_dir = cfg.output_dir or os.path.join(os.path.dirname(__file__), "../../output")
+    folder = os.path.join(base_dir, "t2i")
+    path = _save_image_bytes(img, folder)
+    return _b64(img), path
+
+
+def generate_i2i(cfg: AppConfig, *,
+                 positive: str, negative: str, image_base64: str,
+                 width: Optional[int] = None, height: Optional[int] = None,
+                 scale: Optional[float] = None, steps: Optional[int] = None, sampler: Optional[str] = None,
+                 noise_schedule: Optional[str] = None, strength: float = 0.5, noise: float = 0.0, seed: Optional[int] = -1,
+                 variety: Optional[bool] = False, decrisp: Optional[bool] = False,
+                 cfg_rescale: Optional[float] = None,
+                 save_folder: str = "../../output/i2i") -> Tuple[str, str]:
+    payload = _build_i2i_json(cfg, positive=positive, negative=negative, image_base64=image_base64,
+                              width=width, height=height, scale=scale, steps=steps, sampler=sampler,
+                              noise_schedule=noise_schedule, strength=strength, noise=noise, seed=seed,
+                              variety=variety, decrisp=decrisp, cfg_rescale=cfg_rescale)
+    img = _post_and_unzip_image(payload, cfg.key or "")
+    base_dir = cfg.output_dir or os.path.join(os.path.dirname(__file__), "../../output")
+    folder = os.path.join(base_dir, "i2i")
+    path = _save_image_bytes(img, folder)
+    return _b64(img), path
+
+
+def generate_inpaint(cfg: AppConfig, *,
+                     positive: str, negative: str,
+                     image_base64: str, mask_base64: str, add_original_image: bool = False,
+                     width: Optional[int] = None, height: Optional[int] = None,
+                     scale: Optional[float] = None, steps: Optional[int] = None, sampler: Optional[str] = None,
+                     noise_schedule: Optional[str] = None, strength: float = 0.5, noise: float = 0.0, seed: Optional[int] = -1,
+                     variety: Optional[bool] = False, decrisp: Optional[bool] = False,
+                     cfg_rescale: Optional[float] = None,
+                     save_folder: str = "../../output/inpaint") -> Tuple[str, str]:
+    payload = _build_inpaint_json(cfg, positive=positive, negative=negative, image_base64=image_base64,
+                                  mask_base64=mask_base64, add_original_image=add_original_image,
+                                  width=width, height=height, scale=scale, steps=steps, sampler=sampler,
+                                  noise_schedule=noise_schedule, strength=strength, noise=noise, seed=seed,
+                                  variety=variety, decrisp=decrisp, cfg_rescale=cfg_rescale)
+    img = _post_and_unzip_image(payload, cfg.key or "")
+    base_dir = cfg.output_dir or os.path.join(os.path.dirname(__file__), "../../output")
+    folder = os.path.join(base_dir, "inpaint")
+    path = _save_image_bytes(img, folder)
+    return _b64(img), path

frontend/assets/app.js

@@ -0,0 +1,582 @@
+/* New NAI Frontend App JS */
+
+(() => {
+  const $ = (sel, root = document) => root.querySelector(sel);
+  const $$ = (sel, root = document) => [...root.querySelectorAll(sel)];
+  const byId = (id) => document.getElementById(id);
+  // 提示音状态（运行时），默认关闭，URL 指向 /ring/ring.mp3
+  let soundEnabled = false;
+  let soundUrl = "/ring/ring.mp3";
+
+  // 主题：深色/浅色 切换
+  const rootEl = document.documentElement;
+  function applyTheme(theme) {
+    rootEl.setAttribute('data-theme', theme);
+    localStorage.setItem('theme', theme);
+    const btn = byId('theme-toggle');
+    if (btn) btn.textContent = '主题：' + (theme === 'dark' ? '深色' : '浅色');
+  }
+  const initialTheme = localStorage.getItem('theme') || 'dark';
+  applyTheme(initialTheme);
+  const themeBtn = byId('theme-toggle');
+  if (themeBtn) {
+    themeBtn.addEventListener('click', () => {
+      const next = (rootEl.getAttribute('data-theme') === 'dark') ? 'light' : 'dark';
+      applyTheme(next);
+    });
+  }
+  // 提示音开关（在主题按钮旁）
+  const soundBtn = byId('sound-toggle');
+  const soundPlayer = byId('sound-player');
+  function updateSoundToggle() {
+    if (!soundBtn) return;
+    soundBtn.setAttribute('aria-pressed', soundEnabled ? 'true' : 'false');
+    soundBtn.textContent = '提示音：' + (soundEnabled ? '开' : '关');
+  }
+  if (soundBtn) {
+    soundBtn.addEventListener('click', () => {
+      soundEnabled = !soundEnabled;
+      updateSoundToggle();
+    });
+  }
+ 
+  // ===== 背景方案处理（非字体/主按钮）：根据配置切换页面背景 =====
+  function setBackground(color) {
+    // 统一覆盖背景变量，立即生效（无刷新）
+    rootEl.style.setProperty("--bg", color);
+  }
+  function applyBackgroundScheme(scheme, custom) {
+    const theme = rootEl.getAttribute("data-theme") || "dark";
+    if (scheme === "custom" && custom) {
+      setBackground(custom);
+      return;
+    }
+    if (scheme === "bamboo") {
+      setBackground("#7ba23f"); // 竹子色
+      return;
+    }
+    // auto：浅=白 深=深灰
+    if (theme === "light") setBackground("#ffffff");
+    else setBackground("#121315");
+  }
+  function applyAccentFromConfig(cfg) {
+    const scheme = cfg?.color_scheme || "auto";
+    const custom = cfg?.custom_primary || "";
+    applyBackgroundScheme(scheme, custom);
+  }
+ 
+  // Tabs
+  $$(".tab-btn").forEach((btn) => {
+    btn.addEventListener("click", () => {
+      $$(".tab-btn").forEach((b) => b.classList.remove("active"));
+      btn.classList.add("active");
+      const tabId = btn.getAttribute("data-tab");
+      $$(".tab").forEach((tab) => tab.classList.remove("active"));
+      byId(tabId).classList.add("active");
+    });
+  });
+
+  // UI helpers
+  // 固定状态栏：不弹出、不自动隐藏
+  const toast = (msg, type = "info") => {
+    const el = byId("toast");
+    el.textContent = msg || "";
+    el.className = `toast ${type}`;
+    // 成功提示时若开启提示音则播放
+    try {
+      if (type === "success" && soundEnabled) {
+        const p = byId("sound-player");
+        if (p) {
+          p.currentTime = 0;
+          // 忽略浏览器自动播放限制的异常
+          p.play().catch(() => {});
+        }
+      }
+    } catch {}
+  };
+
+  const loading = {
+    show() {
+      byId("loading").classList.remove("hidden");
+    },
+    hide() {
+      byId("loading").classList.add("hidden");
+    },
+  };
+
+  // Config
+  async function loadConfig() {
+    try {
+      const res = await fetch("/api/config");
+      if (!res.ok) throw new Error(await res.text());
+      const cfg = await res.json();
+
+      byId("cfg-key").value = cfg.key ?? "";
+      byId("cfg-model").value = cfg.model ?? "nai-diffusion-3";
+      byId("cfg-sampler").value = cfg.sampler ?? "k_euler";
+      byId("cfg-steps").value = cfg.steps ?? "";
+      byId("cfg-scale").value = cfg.scale ?? "";
+      byId("cfg-cfg-rescale").value = cfg.cfg_rescale ?? "";
+      byId("cfg-noise-schedule").value = cfg.noise_schedule ?? "";
+      byId("cfg-uc-preset").value = cfg.uc_preset ?? "";
+      byId("cfg-quality-toggle").checked = !!cfg.quality_toggle;
+      byId("cfg-legacy-uc").checked = !!cfg.legacy_uc;
+      byId("cfg-port").value = cfg.port ?? 9180;
+      byId("cfg-save-output").checked = !!cfg.save_output;
+      if (byId("cfg-output-dir")) byId("cfg-output-dir").value = cfg.output_dir ?? "";
+      // 颜色配置（带预览）
+      if (byId("cfg-color-scheme")) byId("cfg-color-scheme").value = cfg.color_scheme ?? "auto";
+      if (byId("cfg-custom-primary")) byId("cfg-custom-primary").value = cfg.custom_primary ?? "#7ba23f";
+      applyAccentFromConfig(cfg);
+
+      // 提示音配置
+      soundEnabled = !!cfg.sound_enabled;
+      soundUrl = cfg.sound_url || "/ring/ring.mp3";
+      if (byId("sound-player")) byId("sound-player").src = soundUrl;
+      (typeof updateSoundToggle === "function") && updateSoundToggle();
+
+      // 隐藏下方“配置已读取”提示
+      byId("cfg-message").textContent = "";
+    } catch (err) {
+      byId("cfg-message").textContent = "读取失败：" + err.message;
+      toast("读取配置失败", "error");
+    }
+  }
+
+  function nullIfEmpty(v) {
+    if (v === undefined || v === null) return null;
+    if (typeof v === "string" && v.trim() === "") return null;
+    return v;
+  }
+
+  async function saveConfig() {
+    const payload = {
+      key: nullIfEmpty(byId("cfg-key").value),
+      model: nullIfEmpty(byId("cfg-model").value),
+      sampler: nullIfEmpty(byId("cfg-sampler").value),
+      steps: byId("cfg-steps").value ? Number(byId("cfg-steps").value) : null,
+      scale: byId("cfg-scale").value ? Number(byId("cfg-scale").value) : null,
+      cfg_rescale: byId("cfg-cfg-rescale").value ? Number(byId("cfg-cfg-rescale").value) : null,
+      noise_schedule: nullIfEmpty(byId("cfg-noise-schedule").value),
+      uc_preset: byId("cfg-uc-preset").value ? Number(byId("cfg-uc-preset").value) : null,
+      quality_toggle: byId("cfg-quality-toggle").checked,
+      legacy_uc: byId("cfg-legacy-uc").checked,
+      port: byId("cfg-port").value ? Number(byId("cfg-port").value) : null,
+      save_output: byId("cfg-save-output").checked,
+      output_dir: nullIfEmpty(byId("cfg-output-dir")?.value),
+      color_scheme: nullIfEmpty(byId("cfg-color-scheme")?.value),
+      custom_primary: nullIfEmpty(byId("cfg-custom-primary")?.value),
+      sound_enabled: !!soundEnabled,
+      sound_url: nullIfEmpty(soundUrl),
+    };
+
+    try {
+      loading.show();
+      const res = await fetch("/api/config", {
+        method: "PUT",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify(payload),
+      });
+      if (!res.ok) throw new Error(await res.text());
+      await res.json();
+      byId("cfg-message").textContent = "保存成功";
+      toast("配置已保存", "success");
+    } catch (err) {
+      byId("cfg-message").textContent = "保存失败：" + err.message;
+      toast("保存配置失败", "error");
+    } finally {
+      loading.hide();
+    }
+  }
+
+  // File -> Base64 (strip data URL prefix)
+  function fileToBase64(file) {
+    return new Promise((resolve, reject) => {
+      const reader = new FileReader();
+      reader.onload = () => {
+        const result = reader.result || "";
+        const idx = String(result).indexOf(",");
+        resolve(idx >= 0 ? String(result).slice(idx + 1) : String(result));
+      };
+      reader.onerror = reject;
+      reader.readAsDataURL(file);
+    });
+  }
+
+  // Ensure x64
+  function ensureX64(n) {
+    const val = Number(n || 0);
+    if (!val || val <= 64) return 64;
+    if (val % 64 === 0) return val;
+    const fract = (val / 64) % 1;
+    return fract >= 0.5 ? (Math.floor(val / 64) + 1) * 64 : Math.floor(val / 64) * 64;
+    }
+
+  // ===== 批量/并发与渲染辅助 =====
+  function ensureCountField(tabId, inputId) {
+    if (byId(inputId)) return;
+    const form = byId(tabId)?.querySelector(".form-grid");
+    if (!form) return;
+    const label = document.createElement("label");
+    const span = document.createElement("span");
+    span.textContent = "数量";
+    const input = document.createElement("input");
+    input.type = "number";
+    input.min = "1";
+    input.max = "8";
+    input.step = "1";
+    input.value = "1";
+    input.id = inputId;
+    label.appendChild(span);
+    label.appendChild(input);
+    form.appendChild(label);
+  }
+  function ensureGrid(tabId, gridId, singleImgId) {
+    const section = byId(tabId);
+    if (!section) return null;
+    const res = section.querySelector(".result");
+    if (!res) return null;
+    let grid = byId(gridId);
+    if (!grid) {
+      grid = document.createElement("div");
+      grid.id = gridId;
+      res.prepend(grid);
+    }
+    grid.style.display = "grid";
+    grid.style.gridTemplateColumns = "repeat(auto-fill, minmax(160px, 1fr))";
+    grid.style.gap = "10px";
+    const single = byId(singleImgId);
+    if (single) single.style.display = "none";
+    return grid;
+  }
+  function setBusy(btn, busy, busyText = "生成中...") {
+    if (!btn) return;
+    if (busy) {
+      btn.setAttribute("data-text", btn.textContent || "");
+      btn.textContent = busyText;
+      btn.disabled = true;
+    } else {
+      const t = btn.getAttribute("data-text");
+      if (t !== null) btn.textContent = t;
+      btn.disabled = false;
+    }
+  }
+  function getCount(inputId, def = 1) {
+    const n = Number(byId(inputId)?.value || def);
+    return Math.max(1, Math.min(8, isNaN(n) ? def : n));
+  }
+
+  // T2I
+  async function handleT2I() {
+    const payloadBase = {
+      prompt: byId("t2i-prompt").value || "",
+      negative: byId("t2i-negative").value || "",
+      width: ensureX64(byId("t2i-width").value || 768),
+      height: ensureX64(byId("t2i-height").value || 768),
+      steps: byId("t2i-steps").value ? Number(byId("t2i-steps").value) : null,
+      scale: byId("t2i-scale").value ? Number(byId("t2i-scale").value) : null,
+      sampler: nullIfEmpty(byId("t2i-sampler").value),
+      noise_schedule: nullIfEmpty(byId("t2i-noise-schedule").value),
+      seed: byId("t2i-seed").value ? Number(byId("t2i-seed").value) : -1,
+      variety: byId("t2i-variety").checked,
+      decrisp: byId("t2i-decrisp").checked,
+      cfg_rescale: byId("t2i-cfg-rescale").value ? Number(byId("t2i-cfg-rescale").value) : null,
+    };
+
+    if (!payloadBase.prompt.trim()) {
+      toast("请填写正面提示词", "error");
+      return;
+    }
+
+    const btn = byId("btn-t2i");
+    setBusy(btn, true);
+    const count = getCount("t2i-count", 1);
+
+    try {
+      const tasks = Array.from({ length: count }, async () => {
+        const res = await fetch("/api/generate/t2i", {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify(payloadBase),
+        });
+        const txt = await res.text();
+        let body;
+        try { body = JSON.parse(txt); } catch { throw new Error(txt); }
+        if (!res.ok) throw new Error(body?.detail || "生成失败");
+        return body;
+      });
+
+      const settled = await Promise.allSettled(tasks);
+      const oks = settled.filter(s => s.status === "fulfilled").map(s => s.value);
+      if (!oks.length) throw settled[0]?.reason || new Error("生成失败");
+
+      const grid = ensureGrid("tab-t2i", "t2i-grid", "t2i-img");
+      if (grid) {
+        grid.innerHTML = "";
+        oks.forEach(o => {
+          const im = document.createElement("img");
+          im.src = o.image_base64;
+          im.alt = "生成结果";
+          im.style.width = "100%";
+          im.style.borderRadius = "12px";
+          im.style.border = "1px solid var(--border)";
+          grid.appendChild(im);
+        });
+      } else {
+        const imgEl = byId("t2i-img");
+        if (imgEl) imgEl.src = oks[0].image_base64;
+      }
+      const paths = oks.map(o => o.saved_path || "").filter(Boolean).join(" | ");
+      if (byId("t2i-saved")) byId("t2i-saved").value = paths;
+      toast(`生成成功 ${oks.length} 张`, "success");
+    } catch (err) {
+      toast(String(err.message || err), "error");
+    } finally {
+      setBusy(btn, false);
+    }
+  }
+
+  // I2I
+  async function handleI2I() {
+    const file = byId("i2i-image").files?.[0];
+    if (!file) {
+      toast("请上传输入图片", "error");
+      return;
+    }
+    const image_base64 = await fileToBase64(file);
+
+    const payloadBase = {
+      positive: byId("i2i-positive").value || "",
+      negative: byId("i2i-negative").value || "",
+      image_base64,
+      width: byId("i2i-width").value ? ensureX64(byId("i2i-width").value) : null,
+      height: byId("i2i-height").value ? ensureX64(byId("i2i-height").value) : null,
+      steps: byId("i2i-steps").value ? Number(byId("i2i-steps").value) : null,
+      scale: byId("i2i-scale").value ? Number(byId("i2i-scale").value) : null,
+      sampler: nullIfEmpty(byId("i2i-sampler").value),
+      noise_schedule: nullIfEmpty(byId("i2i-noise-schedule").value),
+      seed: byId("i2i-seed").value ? Number(byId("i2i-seed").value) : -1,
+      strength: byId("i2i-strength").value ? Number(byId("i2i-strength").value) : 0.5,
+      noise: byId("i2i-noise").value ? Number(byId("i2i-noise").value) : 0.0,
+      variety: byId("i2i-variety").checked,
+      decrisp: byId("i2i-decrisp").checked,
+      cfg_rescale: byId("i2i-cfg-rescale").value ? Number(byId("i2i-cfg-rescale").value) : null,
+    };
+
+    if (!payloadBase.positive.trim()) {
+      toast("请填写正面提示词", "error");
+      return;
+    }
+
+    const btn = byId("btn-i2i");
+    setBusy(btn, true);
+    const count = getCount("i2i-count", 1);
+
+    try {
+      const tasks = Array.from({ length: count }, async () => {
+        const res = await fetch("/api/generate/i2i", {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify(payloadBase),
+        });
+        const txt = await res.text();
+        let body;
+        try { body = JSON.parse(txt); } catch { throw new Error(txt); }
+        if (!res.ok) throw new Error(body?.detail || "生成失败");
+        return body;
+      });
+
+      const settled = await Promise.allSettled(tasks);
+      const oks = settled.filter(s => s.status === "fulfilled").map(s => s.value);
+      if (!oks.length) throw settled[0]?.reason || new Error("生成失败");
+
+      const grid = ensureGrid("tab-i2i", "i2i-grid", "i2i-img");
+      if (grid) {
+        grid.innerHTML = "";
+        oks.forEach(o => {
+          const im = document.createElement("img");
+          im.src = o.image_base64;
+          im.alt = "生成结果";
+          im.style.width = "100%";
+          im.style.borderRadius = "12px";
+          im.style.border = "1px solid var(--border)";
+          grid.appendChild(im);
+        });
+      } else {
+        const imgEl = byId("i2i-img");
+        if (imgEl) imgEl.src = oks[0].image_base64;
+      }
+      const paths = oks.map(o => o.saved_path || "").filter(Boolean).join(" | ");
+      if (byId("i2i-saved")) byId("i2i-saved").value = paths;
+      toast(`生成成功 ${oks.length} 张`, "success");
+    } catch (err) {
+      toast(String(err.message || err), "error");
+    } finally {
+      setBusy(btn, false);
+    }
+  }
+
+  // Inpaint
+  async function handleInpaint() {
+    const imgFile = byId("inpaint-image").files?.[0];
+    const maskFile = byId("inpaint-mask").files?.[0];
+    if (!imgFile || !maskFile) {
+      toast("请上传底图与遮罩", "error");
+      return;
+    }
+    const image_base64 = await fileToBase64(imgFile);
+    const mask_base64 = await fileToBase64(maskFile);
+
+    const payloadBase = {
+      positive: byId("inpaint-positive").value || "",
+      negative: byId("inpaint-negative").value || "",
+      image_base64,
+      mask_base64,
+      add_original_image: byId("inpaint-add-original").checked,
+      width: byId("inpaint-width").value ? ensureX64(byId("inpaint-width").value) : null,
+      height: byId("inpaint-height").value ? ensureX64(byId("inpaint-height").value) : null,
+      steps: byId("inpaint-steps").value ? Number(byId("inpaint-steps").value) : null,
+      scale: byId("inpaint-scale").value ? Number(byId("inpaint-scale").value) : null,
+      sampler: nullIfEmpty(byId("inpaint-sampler").value),
+      noise_schedule: nullIfEmpty(byId("inpaint-noise-schedule").value),
+      seed: byId("inpaint-seed").value ? Number(byId("inpaint-seed").value) : -1,
+      strength: byId("inpaint-strength").value ? Number(byId("inpaint-strength").value) : 0.5,
+      noise: byId("inpaint-noise-val").value ? Number(byId("inpaint-noise-val").value) : 0.0,
+      variety: byId("inpaint-variety").checked,
+      decrisp: byId("inpaint-decrisp").checked,
+      cfg_rescale: byId("inpaint-cfg-rescale").value ? Number(byId("inpaint-cfg-rescale").value) : null,
+    };
+
+    if (!payloadBase.positive.trim()) {
+      toast("请填写 Positive", "error");
+      return;
+    }
+
+    const btn = byId("btn-inpaint");
+    setBusy(btn, true);
+    const count = getCount("inpaint-count", 1);
+
+    try {
+      const tasks = Array.from({ length: count }, async () => {
+        const res = await fetch("/api/generate/inpaint", {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify(payloadBase),
+        });
+        const txt = await res.text();
+        let body;
+        try { body = JSON.parse(txt); } catch { throw new Error(txt); }
+        if (!res.ok) throw new Error(body?.detail || "生成失败");
+        return body;
+      });
+
+      const settled = await Promise.allSettled(tasks);
+      const oks = settled.filter(s => s.status === "fulfilled").map(s => s.value);
+      if (!oks.length) throw settled[0]?.reason || new Error("生成失败");
+
+      const grid = ensureGrid("tab-inpaint", "inpaint-grid", "inpaint-img");
+      if (grid) {
+        grid.innerHTML = "";
+        oks.forEach(o => {
+          const im = document.createElement("img");
+          im.src = o.image_base64;
+          im.alt = "生成结果";
+          im.style.width = "100%";
+          im.style.borderRadius = "12px";
+          im.style.border = "1px solid var(--border)";
+          grid.appendChild(im);
+        });
+      } else {
+        const imgEl = byId("inpaint-img");
+        if (imgEl) imgEl.src = oks[0].image_base64;
+      }
+      const paths = oks.map(o => o.saved_path || "").filter(Boolean).join(" | ");
+      if (byId("inpaint-saved")) byId("inpaint-saved").value = paths;
+      toast(`生成成功 ${oks.length} 张`, "success");
+    } catch (err) {
+      toast(String(err.message || err), "error");
+    } finally {
+      setBusy(btn, false);
+    }
+  }
+
+  // Bindings
+  // 为每个 Tab 注入“数量”输入（默认 1，可调至 8）
+  ensureCountField("tab-t2i", "t2i-count");
+  ensureCountField("tab-i2i", "i2i-count");
+  ensureCountField("tab-inpaint", "inpaint-count");
+
+  byId("btn-load-config").addEventListener("click", loadConfig);
+  byId("btn-save-config").addEventListener("click", saveConfig);
+  const selOutBtn = byId("btn-select-output-dir");
+  if (selOutBtn) {
+    selOutBtn.addEventListener("click", async () => {
+      try {
+        loading.show();
+        const res = await fetch("/api/select-output-dir");
+        let body = {};
+        try { body = await res.json(); } catch {}
+        if (!res.ok) {
+          // 失败兜底：提示手动输入，并尝试打开当前保存目录帮助定位
+          toast(body?.detail || "选择失败，请手动在输入框填入保存目录", "error");
+          try {
+            await fetch("/api/open-dir", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify({ path: byId("cfg-output-dir")?.value || "" }) });
+          } catch {}
+          return;
+        }
+        const p = String(body?.path || "");
+        if (p) {
+          const input = byId("cfg-output-dir");
+          if (input) input.value = p;
+          toast("已选择保存目录", "success");
+        } else {
+          toast("未选择任何目录", "info");
+        }
+      } catch (e) {
+        toast(String(e?.message || e), "error");
+      } finally {
+        loading.hide();
+      }
+    });
+  }
+  const openOutBtn = byId("btn-open-output-dir");
+  if (openOutBtn) {
+    openOutBtn.addEventListener("click", async () => {
+      try {
+        loading.show();
+        const p = byId("cfg-output-dir")?.value || "";
+        const res = await fetch("/api/open-dir", {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify({ path: p }),
+        });
+        const body = await res.json().catch(() => ({}));
+        if (!res.ok) throw new Error(body?.detail || "打开目录失败");
+        toast("已打开保存目录", "success");
+      } catch (e) {
+        toast(String(e?.message || e), "error");
+      } finally {
+        loading.hide();
+      }
+    });
+  }
+  // 颜色方案即时预览（无需保存即可体验）
+  const schemeSel = byId("cfg-color-scheme");
+  const customColor = byId("cfg-custom-primary");
+  if (schemeSel) {
+    schemeSel.addEventListener("change", () => {
+      applyBackgroundScheme(schemeSel.value || "auto", customColor?.value || "");
+    });
+  }
+  if (customColor) {
+    customColor.addEventListener("input", () => {
+      applyBackgroundScheme("custom", customColor.value || "#7ba23f");
+    });
+  }
+  byId("btn-t2i").addEventListener("click", handleT2I);
+  byId("btn-i2i").addEventListener("click", handleI2I);
+  byId("btn-inpaint").addEventListener("click", handleInpaint);
+ 
+  // Init
+  loadConfig();
+})();

frontend/assets/style.css

@@ -0,0 +1,508 @@
+:root {
+  /* 将浅色作为默认，切换立即生效；暗色在 [data-theme="dark"] 中覆盖 */
+  --bg: #f5f7fb;
+  --panel: #ffffff;
+  --text: #111;
+  --muted: #5b6470;
+  /* 浅色用黑色 */
+  --primary: #000000;
+  --primary-600: #222222;
+  --danger: #e95353;
+  --success: #22b66b;
+  --border: #e6e8ef;
+  --card: #ffffff;
+  --shadow: 0 10px 30px rgba(0,0,0,0.15);
+  --radius: 12px;
+  /* 统一焦点环与激活文字颜色 */
+  --ring: rgba(0,0,0,0.15);
+  --active-text: #ffffff;
+  --switch-knob: #ffffff;
+}
+
+* { box-sizing: border-box; }
+html, body { height: 100%; }
+html { scrollbar-gutter: stable both-edges; } /* 固定滚动条占位，避免切换/加载导致布局左右抖动 */
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--text);
+  font: 16px/1.7 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+img { max-width: 100%; display: block; }
+
+.app-header {
+  position: fixed; /* 彻底固定选项栏（不随滚动、不跳动） */
+  top: 0;
+  left: 0;
+  right: 0;
+  width: 100%;
+  z-index: 50;
+  display: flex;
+  gap: 12px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 10px 14px;
+  background: rgba(10,12,18,0.75);
+  backdrop-filter: blur(8px);
+  border-bottom: 1px solid var(--border);
+}
+
+.brand {
+  font-weight: 700;
+  letter-spacing: 0.5px;
+  font-size: 16px;
+  color: var(--text);
+}
+
+.tabs {
+  display: inline-flex;
+  gap: 8px;
+  overflow-x: auto;
+  -webkit-overflow-scrolling: touch;
+}
+
+/* 头部右侧操作区（主题/提示音） */
+.header-actions {
+  display: inline-flex;
+  gap: 8px;
+  flex-shrink: 0;
+}
+
+.tab-btn {
+  appearance: none;
+  background: transparent;
+  color: var(--text);
+  border: 1px solid var(--border);
+  padding: 10px 14px;
+  border-radius: 999px;
+  white-space: nowrap;
+  /* 彻底固定：移除过渡，避免任何切换动画引起的视觉“移动” */
+  transition: none;
+  cursor: pointer;
+  font-weight: 700;
+}
+.tab-btn:hover { color: var(--text); border-color: var(--border); }
+.tab-btn.active {
+  background: var(--primary);
+  color: var(--active-text);
+  border-color: transparent;
+  box-shadow: none;
+}
+
+main {
+  max-width: 1280px;
+  margin: 24px auto;
+  /* 预留固定头部高度，避免切换/滚动产生顶端位移 */
+  padding: 64px 20px 80px;
+}
+
+.tab { display: none; }
+.tab.active { display: block; }
+
+h2 {
+  margin: 10px 0 14px;
+  font-size: 18px;
+  font-weight: 700;
+}
+
+.card {
+  background: var(--panel);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  box-shadow: var(--shadow);
+  padding: 14px;
+}
+
+/* Form grid - mobile first */
+.form-grid {
+  display: grid;
+  grid-template-columns: 1fr;
+  gap: 12px;
+}
+
+/* Larger screens */
+@media (min-width: 640px) {
+  .form-grid {
+    grid-template-columns: repeat(2, 1fr);
+  }
+}
+@media (min-width: 960px) {
+  .form-grid {
+    grid-template-columns: repeat(3, 1fr);
+  }
+}
+@media (min-width: 1200px) {
+  .form-grid {
+    grid-template-columns: repeat(4, 1fr);
+  }
+}
+
+label {
+  display: grid;
+  gap: 6px;
+  color: var(--text);
+  font-size: 14px;
+  font-weight: 600;
+}
+
+label.full {
+  grid-column: 1 / -1;
+}
+
+input[type="text"],
+input[type="password"],
+input[type="number"],
+textarea,
+select {
+  width: 100%;
+  padding: 12px 14px;
+  background: var(--card);
+  color: var(--text);
+  border: 1px solid var(--border);
+  border-radius: 12px;
+  outline: none;
+  transition: border-color .18s ease, box-shadow .18s ease;
+  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
+}
+textarea { min-height: 84px; resize: vertical; }
+
+input:focus,
+textarea:focus,
+select:focus {
+  border-color: var(--primary-600);
+  box-shadow: 0 0 0 3px var(--ring);
+}
+
+/* Switch */
+.switch {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+.switch input[type="checkbox"] {
+  appearance: none;
+  width: 44px;
+  height: 26px;
+  border-radius: 999px;
+  background: #2a3040;
+  position: relative;
+  outline: none;
+  border: 1px solid var(--border);
+  transition: background .18s ease, border-color .18s ease;
+}
+.switch input[type="checkbox"]::after {
+  content: "";
+  position: absolute;
+  top: 2px; left: 2px;
+  width: 20px; height: 20px;
+  border-radius: 50%;
+  background: var(--switch-knob);
+  transition: transform .18s ease, background .18s ease;
+}
+.switch input[type="checkbox"]:checked {
+  background: var(--primary);
+  border-color: transparent;
+}
+.switch input[type="checkbox"]:checked::after {
+  transform: translateX(18px);
+  background: var(--switch-knob-checked);
+}
+
+/* Actions */
+.actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+  padding-top: 4px;
+}
+
+button {
+  appearance: none;
+  border: 1px solid var(--border);
+  background: #1a2030;
+  color: #e8ecff;
+  border-radius: 12px;
+  padding: 12px 16px;
+  font-weight: 800;
+  font-size: 16px;
+  letter-spacing: .2px;
+  cursor: pointer;
+  /* 去除 transform 过渡，避免点击“抽搐” */
+  transition: background .18s ease, border-color .18s ease, box-shadow .2s ease, color .18s ease;
+}
+button:hover { border-color: #3a3a3a; background: #222222; }
+button:active { opacity: 0.94; }
+
+/* 可键盘操作的聚焦态 */
+button:focus-visible,
+.tab-btn:focus-visible {
+  outline: none;
+  box-shadow: 0 0 0 3px var(--ring);
+  border-color: var(--primary-600);
+}
+
+button.primary {
+  /* 使用主题主色：浅色=黑，深色=白 */
+  background: var(--primary);
+  border-color: transparent;
+  color: var(--active-text) !important;
+  text-shadow: none;
+  box-shadow: none;
+}
+button.primary:hover {
+  filter: brightness(0.92);
+}
+
+/* Result */
+.result {
+  margin-top: 14px;
+  display: grid;
+  gap: 12px;
+}
+.result img {
+  width: 100%;
+  border-radius: 12px;
+  border: 1px solid var(--border);
+  background: #0e1118;
+}
+
+.saved-path {
+  display: grid;
+  grid-template-columns: 120px 1fr;
+  gap: 10px;
+  align-items: center;
+}
+.saved-path label {
+  margin: 0;
+  color: var(--muted);
+}
+.saved-path input {
+  width: 100%;
+}
+
+/* Toast: 固定状态栏，不弹出动画 */
+.toast {
+  position: fixed;
+  left: 50%;
+  bottom: 14px;
+  transform: translateX(-50%); /* 不再上下弹出 */
+  background: rgba(17, 23, 34, 0.96);
+  color: #fff;
+  border: 1px solid var(--border);
+  padding: 8px 14px;
+  border-radius: 10px;
+  box-shadow: var(--shadow);
+  z-index: 100;
+  transition: none;
+  max-width: 92%;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+.toast:empty { display: none; }
+.toast.success { border-color: rgba(40, 199, 111, .4); }
+.toast.error { border-color: rgba(255, 93, 93, .4); }
+
+/* Loading overlay */
+.loading.hidden { display: none; }
+.loading {
+  position: fixed;
+  inset: 0;
+  background: rgba(11,13,18,0.7);
+  display: grid;
+  place-items: center;
+  z-index: 200;
+}
+.spinner {
+  width: 46px; height: 46px;
+  border-radius: 50%;
+  border: 4px solid rgba(255,255,255,0.12);
+  border-top-color: var(--primary-600);
+  animation: spin 0.8s linear infinite;
+  margin: 0 auto 8px;
+}
+.loading-text {
+  color: var(--muted);
+  font-weight: 600;
+  text-align: center;
+}
+
+@keyframes spin {
+  to { transform: rotate(360deg); }
+}
+
+/* Improve mobile tap targets */
+input[type="file"] {
+  padding: 10px;
+  background: var(--card);
+  border-radius: 10px;
+  border: 1px solid var(--border);
+}
+
+/* ===== 主题变量与覆盖 ===== */
+/* 深色为默认 */
+:root,
+[data-theme="dark"] {
+  /* 深色：去蓝化，统一深灰系 */
+  --bg: #121315;
+  --panel: #1a1a1a;
+  --text: #e6e6e6;
+  --muted: #9a9a9a;
+  /* 深色主按钮前景仍使用白色/黑色对比色 */
+  --primary: #ffffff;
+  --primary-600: #e6e6e6;
+  --danger: #ff5d5d;
+  --success: #28c76f;
+  --border: #2a2a2a;
+  --card: #121212;
+  --ring: rgba(255,255,255,0.12);
+  --active-text: #111111;
+  --switch-knob-checked: #1a1a1a;
+}
+
+/* 浅色主题 */
+[data-theme="light"] {
+  --bg: #f5f7fb;
+  --panel: #ffffff;
+  --text: #222;
+  --muted: #5b6470;
+  /* 浅色用黑色 */
+  --primary: #000000;
+  --primary-600: #222222;
+  --danger: #e95353;
+  --success: #22b66b;
+  --border: #e6e8ef;
+  --card: #ffffff;
+  --ring: rgba(0,0,0,0.15);
+  --active-text: #ffffff;
+  --switch-knob-checked: #ffffff;
+}
+
+/* 浅色覆盖 */
+[data-theme="light"] .app-header {
+  background: rgba(255,255,255,0.8);
+  border-bottom-color: var(--border);
+}
+[data-theme="light"] .tab-btn {
+  color: var(--muted);
+  border-color: var(--border);
+  background: #fff;
+}
+[data-theme="light"] .tab-btn.active {
+  background: var(--primary);
+  color: var(--active-text);
+  border-color: transparent;
+}
+[data-theme="light"] button {
+  background: #ffffff;
+  color: #1a1a1a;
+  border-color: var(--border);
+}
+[data-theme="light"] button:hover {
+  background: #f6f7fb;
+  border-color: #d6dbe8;
+}
+[data-theme="light"] button.primary {
+  color: var(--active-text) !important;
+}
+[data-theme="light"] .result img {
+  background: #fff;
+  border-color: var(--border);
+}
+[data-theme="light"] .toast {
+  background: rgba(255,255,255,0.96);
+  color: #222;
+}
+
+/* 主要按钮文字颜色由 --active-text 控制（浅色=白、深色=黑） */
+
+/* ===== 可读性增强与无障碍优化 ===== */
+input::placeholder,
+textarea::placeholder {
+  color: var(--placeholder);
+  opacity: 1;
+}
+select,
+option {
+  color: var(--text);
+  background: var(--card);
+}
+input,
+textarea,
+select {
+  caret-color: var(--primary);
+  font-size: 15px;
+}
+.message {
+  color: var(--muted);
+}
+
+/* 主题占位符颜色 */
+:root,
+[data-theme="dark"] {
+  --placeholder: #b8c1d1;
+}
+[data-theme="light"] {
+  --placeholder: #8a93a8;
+}
+
+/* ===== 移动端优化（参考 NAI 生成页交互） ===== */
+@media (max-width: 640px) {
+  /* 底部固定操作栏：当前 Tab 的 actions 固定在底部，仅当前 Tab 可见 */
+  .actions {
+    position: fixed;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    padding: 10px 16px;
+    background: var(--panel);
+    border-top: 1px solid var(--border);
+    z-index: 80;
+  }
+  .actions .primary { width: 100%; }
+
+  /* 预留底部空间，避免内容被按钮遮挡；并为顶部两行导航预留高度 */
+  main {
+    padding-bottom: 120px;
+    padding-top: 112px; /* 顶部两行（品牌/按钮 + 可横向滚动的 tabs） */
+  }
+
+  /* 顶部改为两行，选项（文生图/图生图/局部重绘）单独一行并可横向滚动，避免“找不到” */
+  .app-header {
+    padding: 8px 10px;
+    flex-direction: column;
+    align-items: stretch;
+    gap: 6px;
+  }
+  .header-actions {
+    order: 2;
+    align-self: flex-end;
+  }
+  .tabs {
+    order: 3;
+    display: flex;
+    width: 100%;
+    overflow-x: auto;
+    -webkit-overflow-scrolling: touch;
+    gap: 8px;
+    padding-bottom: 2px;
+  }
+  .tabs .tab-btn {
+    flex: 0 0 auto;
+    padding: 8px 10px;
+    font-size: 14px;
+  }
+
+  /* 触控表单更易点按 */
+  input[type="text"],
+  input[type="password"],
+  input[type="number"],
+  textarea,
+  select {
+    padding: 14px 16px;
+    font-size: 16px;
+  }
+}

frontend/index.html

@@ -0,0 +1,414 @@
+<!doctype html>
+<html lang="zh-CN">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width,initial-scale=1,viewport-fit=cover" />
+  <title>New NAI - 本地可视化前端</title>
+  <link rel="stylesheet" href="assets/style.css" />
+</head>
+<body>
+  <header class="app-header">
+    <div class="brand">New NAI</div>
+    <nav class="tabs">
+      <button class="tab-btn active" data-tab="tab-config">配置</button>
+      <button class="tab-btn" data-tab="tab-t2i">文生图</button>
+      <button class="tab-btn" data-tab="tab-i2i">图生图</button>
+      <button class="tab-btn" data-tab="tab-inpaint">局部重绘</button>
+    </nav>
+    <div class="header-actions">
+      <button id="theme-toggle" class="tab-btn">主题：深色</button>
+      <button id="sound-toggle" class="tab-btn" aria-pressed="false">提示音：关</button>
+    </div>
+  </header>
+
+  <main>
+    <!-- 配置 -->
+    <section id="tab-config" class="tab active">
+      <h2>配置设置</h2>
+      <div class="card">
+        <div class="form-grid">
+          <label>
+            <span>Key（原 Token）</span>
+            <input id="cfg-key" type="password" placeholder="在此填入 NovelAI Key" autocomplete="off" />
+          </label>
+          <label>
+            <span>模型</span>
+            <select id="cfg-model">
+              <option value="nai-diffusion-3">nai-diffusion-3</option>
+              <option value="nai-diffusion-furry-3">nai-diffusion-furry-3</option>
+              <option value="nai-diffusion-4-curated-preview">nai-diffusion-4-curated-preview</option>
+              <option value="nai-diffusion-4-full">nai-diffusion-4-full</option>
+              <option value="nai-diffusion-4-5-curated">nai-diffusion-4-5-curated</option>
+              <option value="nai-diffusion-4-5-full">nai-diffusion-4-5-full</option>
+            </select>
+          </label>
+          <label>
+            <span>采样器</span>
+            <select id="cfg-sampler">
+              <option value="k_euler">k_euler</option>
+              <option value="k_euler_ancestral">k_euler_ancestral</option>
+              <option value="k_dpmpp_2s_ancestral">k_dpmpp_2s_ancestral</option>
+              <option value="k_dpmpp_2m">k_dpmpp_2m</option>
+              <option value="k_dpmpp_sde">k_dpmpp_sde</option>
+              <option value="k_dpmpp_2m_sde">k_dpmpp_2m_sde</option>
+              <option value="ddim_v3">ddim_v3</option>
+            </select>
+          </label>
+          <label>
+            <span>步数</span>
+            <input id="cfg-steps" type="number" min="1" step="1" placeholder="默认 28" />
+          </label>
+          <label>
+            <span>CFG 强度</span>
+            <input id="cfg-scale" type="number" min="0" step="0.1" placeholder="默认 5.0" />
+          </label>
+          <label>
+            <span>CFG 重缩放</span>
+            <input id="cfg-cfg-rescale" type="number" min="0" step="0.1" placeholder="默认 0" />
+          </label>
+          <label>
+            <span>噪声调度</span>
+            <select id="cfg-noise-schedule">
+              <option value="">（随模型/采样器自动）</option>
+              <option value="native">native</option>
+              <option value="karras">karras</option>
+              <option value="exponential">exponential</option>
+              <option value="polyexponential">polyexponential</option>
+            </select>
+          </label>
+          <label>
+            <span>UC 预设</span>
+            <input id="cfg-uc-preset" type="number" min="0" step="1" placeholder="默认 4" />
+          </label>
+          <label class="switch">
+            <input id="cfg-quality-toggle" type="checkbox" />
+            <span>质量优化</span>
+          </label>
+          <label class="switch">
+            <input id="cfg-legacy-uc" type="checkbox" />
+            <span>兼容旧版 UC</span>
+          </label>
+          <label>
+            <span>服务端口</span>
+            <input id="cfg-port" type="number" min="1" step="1" placeholder="默认 9180" />
+          </label>
+          <label class="switch">
+            <input id="cfg-save-output" type="checkbox" />
+            <span>保存到输出目录</span>
+          </label>
+          <label class="full">
+            <span>保存目录</span>
+            <input id="cfg-output-dir" type="text" placeholder="例如：D:\Pictures\NAI 输出（留空=默认 output）" />
+          </label>
+          <label>
+            <span>背景方案</span>
+            <select id="cfg-color-scheme">
+              <option value="auto">自动（浅=白/深=深灰）</option>
+              <option value="bamboo">竹子色</option>
+              <option value="custom">自定义</option>
+            </select>
+          </label>
+          <label>
+            <span>自定义背景色</span>
+            <input id="cfg-custom-primary" type="color" value="#7ba23f" />
+          </label>
+        </div>
+        <div class="actions">
+          <button id="btn-load-config">读取配置</button>
+          <button id="btn-select-output-dir">选择保存目录</button>
+          <button id="btn-open-output-dir">打开保存目录</button>
+          <button id="btn-save-config" class="primary">保存配置</button>
+        </div>
+        <p id="cfg-message" class="message"></p>
+      </div>
+    </section>
+
+    <!-- 文生图 -->
+    <section id="tab-t2i" class="tab">
+      <h2>文生图</h2>
+      <div class="card">
+        <div class="form-grid">
+          <label class="full">
+            <span>正面提示词</span>
+            <textarea id="t2i-prompt" rows="3" placeholder="输入提示词"></textarea>
+          </label>
+          <label class="full">
+            <span>负面提示词</span>
+            <textarea id="t2i-negative" rows="2" placeholder="可留空"></textarea>
+          </label>
+          <label>
+            <span>宽度</span>
+            <input id="t2i-width" type="number" min="64" step="64" value="768" />
+          </label>
+          <label>
+            <span>高度</span>
+            <input id="t2i-height" type="number" min="64" step="64" value="768" />
+          </label>
+          <label>
+            <span>步数</span>
+            <input id="t2i-steps" type="number" min="1" step="1" placeholder="留空=配置默认" />
+          </label>
+          <label>
+            <span>CFG 强度</span>
+            <input id="t2i-scale" type="number" min="0" step="0.1" placeholder="留空=配置默认" />
+          </label>
+          <label>
+            <span>采样器</span>
+            <select id="t2i-sampler">
+              <option value="">（配置默认）</option>
+              <option value="k_euler">k_euler</option>
+              <option value="k_euler_ancestral">k_euler_ancestral</option>
+              <option value="k_dpmpp_2s_ancestral">k_dpmpp_2s_ancestral</option>
+              <option value="k_dpmpp_2m">k_dpmpp_2m</option>
+              <option value="k_dpmpp_sde">k_dpmpp_sde</option>
+              <option value="k_dpmpp_2m_sde">k_dpmpp_2m_sde</option>
+              <option value="ddim_v3">ddim_v3</option>
+            </select>
+          </label>
+          <label>
+            <span>噪声调度</span>
+            <select id="t2i-noise-schedule">
+              <option value="">（自动）</option>
+              <option value="native">native</option>
+              <option value="karras">karras</option>
+              <option value="exponential">exponential</option>
+              <option value="polyexponential">polyexponential</option>
+            </select>
+          </label>
+          <label>
+            <span>随机种子</span>
+            <input id="t2i-seed" type="number" step="1" value="-1" />
+          </label>
+          <label class="switch">
+            <input id="t2i-variety" type="checkbox" />
+            <span>多样性</span>
+          </label>
+          <label class="switch">
+            <input id="t2i-decrisp" type="checkbox" />
+            <span>动态阈值</span>
+          </label>
+          <label>
+            <span>CFG 重缩放</span>
+            <input id="t2i-cfg-rescale" type="number" min="0" step="0.1" placeholder="留空=配置默认" />
+          </label>
+        </div>
+        <div class="actions">
+          <button id="btn-t2i" class="primary">生成</button>
+        </div>
+        <div class="result">
+          <img id="t2i-img" alt="生成结果" />
+          <div class="saved-path">
+            <label>保存路径</label>
+            <input id="t2i-saved" type="text" readonly />
+          </div>
+        </div>
+      </div>
+    </section>
+
+    <!-- 图生图 -->
+    <section id="tab-i2i" class="tab">
+      <h2>图生图</h2>
+      <div class="card">
+        <div class="form-grid">
+          <label class="full">
+            <span>正面提示词</span>
+            <textarea id="i2i-positive" rows="2" placeholder="输入正面提示词"></textarea>
+          </label>
+          <label class="full">
+            <span>负面提示词</span>
+            <textarea id="i2i-negative" rows="2" placeholder="可留空"></textarea>
+          </label>
+          <label class="full">
+            <span>输入图片</span>
+            <input id="i2i-image" type="file" accept="image/*" />
+          </label>
+          <label>
+            <span>宽度</span>
+            <input id="i2i-width" type="number" min="64" step="64" placeholder="留空=768" />
+          </label>
+          <label>
+            <span>高度</span>
+            <input id="i2i-height" type="number" min="64" step="64" placeholder="留空=768" />
+          </label>
+          <label>
+            <span>步数</span>
+            <input id="i2i-steps" type="number" min="1" step="1" placeholder="留空=配置默认" />
+          </label>
+          <label>
+            <span>CFG 强度</span>
+            <input id="i2i-scale" type="number" min="0" step="0.1" placeholder="留空=配置默认" />
+          </label>
+          <label>
+            <span>采样器</span>
+            <select id="i2i-sampler">
+              <option value="">（配置默认）</option>
+              <option value="k_euler">k_euler</option>
+              <option value="k_euler_ancestral">k_euler_ancestral</option>
+              <option value="k_dpmpp_2s_ancestral">k_dpmpp_2s_ancestral</option>
+              <option value="k_dpmpp_2m">k_dpmpp_2m</option>
+              <option value="k_dpmpp_sde">k_dpmpp_sde</option>
+              <option value="k_dpmpp_2m_sde">k_dpmpp_2m_sde</option>
+              <option value="ddim_v3">ddim_v3</option>
+            </select>
+          </label>
+          <label>
+            <span>噪声调度</span>
+            <select id="i2i-noise-schedule">
+              <option value="">（自动）</option>
+              <option value="native">native</option>
+              <option value="karras">karras</option>
+              <option value="exponential">exponential</option>
+              <option value="polyexponential">polyexponential</option>
+            </select>
+          </label>
+          <label>
+            <span>随机种子</span>
+            <input id="i2i-seed" type="number" step="1" value="-1" />
+          </label>
+          <label>
+            <span>强度</span>
+            <input id="i2i-strength" type="number" min="0" max="1" step="0.01" value="0.5" />
+          </label>
+          <label>
+            <span>噪声</span>
+            <input id="i2i-noise" type="number" min="0" max="1" step="0.01" value="0.0" />
+          </label>
+          <label class="switch">
+            <input id="i2i-variety" type="checkbox" />
+            <span>多样性</span>
+          </label>
+          <label class="switch">
+            <input id="i2i-decrisp" type="checkbox" />
+            <span>动态阈值</span>
+          </label>
+          <label>
+            <span>CFG 重缩放</span>
+            <input id="i2i-cfg-rescale" type="number" min="0" step="0.1" placeholder="留空=配置默认" />
+          </label>
+        </div>
+        <div class="actions">
+          <button id="btn-i2i" class="primary">生成</button>
+        </div>
+        <div class="result">
+          <img id="i2i-img" alt="生成结果" />
+          <div class="saved-path">
+            <label>保存路径</label>
+            <input id="i2i-saved" type="text" readonly />
+          </div>
+        </div>
+      </div>
+    </section>
+
+    <!-- 局部重绘 -->
+    <section id="tab-inpaint" class="tab">
+      <h2>局部重绘</h2>
+      <div class="card">
+        <div class="form-grid">
+          <label class="full">
+            <span>正面提示词</span>
+            <textarea id="inpaint-positive" rows="2" placeholder="输入正面提示词"></textarea>
+          </label>
+          <label class="full">
+            <span>负面提示词</span>
+            <textarea id="inpaint-negative" rows="2" placeholder="可留空"></textarea>
+          </label>
+          <label class="full">
+            <span>底图</span>
+            <input id="inpaint-image" type="file" accept="image/*" />
+          </label>
+          <label class="full">
+            <span>遮罩（白色为重绘区域，黑色保留）</span>
+            <input id="inpaint-mask" type="file" accept="image/*" />
+          </label>
+          <label class="switch">
+            <input id="inpaint-add-original" type="checkbox" />
+            <span>叠加原图</span>
+          </label>
+          <label>
+            <span>宽度</span>
+            <input id="inpaint-width" type="number" min="64" step="64" placeholder="留空=768" />
+          </label>
+          <label>
+            <span>高度</span>
+            <input id="inpaint-height" type="number" min="64" step="64" placeholder="留空=768" />
+          </label>
+          <label>
+            <span>步数</span>
+            <input id="inpaint-steps" type="number" min="1" step="1" placeholder="留空=配置默认" />
+          </label>
+          <label>
+            <span>CFG 强度</span>
+            <input id="inpaint-scale" type="number" min="0" step="0.1" placeholder="留空=配置默认" />
+          </label>
+          <label>
+            <span>采样器</span>
+            <select id="inpaint-sampler">
+              <option value="">（配置默认）</option>
+              <option value="k_euler">k_euler</option>
+              <option value="k_euler_ancestral">k_euler_ancestral</option>
+              <option value="k_dpmpp_2s_ancestral">k_dpmpp_2s_ancestral</option>
+              <option value="k_dpmpp_2m">k_dpmpp_2m</option>
+              <option value="k_dpmpp_sde">k_dpmpp_sde</option>
+              <option value="k_dpmpp_2m_sde">k_dpmpp_2m_sde</option>
+              <option value="ddim_v3">ddim_v3</option>
+            </select>
+          </label>
+          <label>
+            <span>噪声调度</span>
+            <select id="inpaint-noise-schedule">
+              <option value="">（自动）</option>
+              <option value="native">native</option>
+              <option value="karras">karras</option>
+              <option value="exponential">exponential</option>
+              <option value="polyexponential">polyexponential</option>
+            </select>
+          </label>
+          <label>
+            <span>随机种子</span>
+            <input id="inpaint-seed" type="number" step="1" value="-1" />
+          </label>
+          <label>
+            <span>强度</span>
+            <input id="inpaint-strength" type="number" min="0" max="1" step="0.01" value="0.5" />
+          </label>
+          <label>
+            <span>噪声</span>
+            <input id="inpaint-noise-val" type="number" min="0" max="1" step="0.01" value="0.0" />
+          </label>
+          <label class="switch">
+            <input id="inpaint-variety" type="checkbox" />
+            <span>多样性</span>
+          </label>
+          <label class="switch">
+            <input id="inpaint-decrisp" type="checkbox" />
+            <span>动态阈值</span>
+          </label>
+          <label>
+            <span>CFG 重缩放</span>
+            <input id="inpaint-cfg-rescale" type="number" min="0" step="0.1" placeholder="留空=配置默认" />
+          </label>
+        </div>
+        <div class="actions">
+          <button id="btn-inpaint" class="primary">生成</button>
+        </div>
+        <div class="result">
+          <img id="inpaint-img" alt="生成结果" />
+          <div class="saved-path">
+            <label>保存路径</label>
+            <input id="inpaint-saved" type="text" readonly />
+          </div>
+        </div>
+      </div>
+    </section>
+  </main>
+
+  <div id="toast" class="toast"></div>
+  <div id="loading" class="loading hidden">
+    <div class="spinner"></div>
+    <div class="loading-text">处理中...</div>
+  </div>
+
+  <audio id="sound-player" src="" preload="auto"></audio>
+  <script src="assets/app.js"></script>
+</body>
+</html>

novelai.js

@@ -0,0 +1,355 @@
+"use strict";
+
+/**
+ * NovelAI 上游请求与 Zip 解包（Node 版）
+ * - 使用 got(http2) 提升与上游兼容性（对齐 Python httpx(http2=True)）
+ * - 使用 adm-zip 解压 image_0.png
+ * - 导出 generateT2I / generateI2I / generateInpaint
+ */
+
+const path = require("path");
+const fs = require("fs");
+const fse = require("fs-extra");
+const AdmZip = require("adm-zip");
+const axios = require("axios");
+
+const NOVELAI_ENDPOINT = "https://image.novelai.net/ai/generate-image";
+const ROOT = __dirname;
+
+// ---------- 公共工具 ----------
+function randSeed(seed) {
+  if (seed === undefined || seed === null || Number(seed) === -1) {
+    // 10 位随机数（与 Python 版一致范围）
+    const min = 1_000_000_000;
+    const max = 9_999_999_999;
+    return Math.floor(Math.random() * (max - min + 1)) + min;
+  }
+  return Number(seed);
+}
+
+function ensureX64(n) {
+  const val = Number(n || 0);
+  if (!val || val <= 64) return 64;
+  if (val % 64 === 0) return val;
+  const fract = (val / 64) % 1;
+  return fract >= 0.5 ? (Math.floor(val / 64) + 1) * 64 : Math.floor(val / 64) * 64;
+}
+
+function asDataUriPng(b64) {
+  return `data:image/png;base64,${b64}`;
+}
+
+function headers(key) {
+  if (!key) throw new Error("未配置 key，请先在配置中设置 key。");
+  return {
+    Accept: "application/zip, */*;q=0.5",
+    "Accept-Encoding": "gzip, deflate, br",
+    "Accept-Language": "zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6",
+    Authorization: `Bearer ${key}`,
+    "Content-Type": "application/json",
+    Origin: "https://novelai.net",
+    Referer: "https://novelai.net/",
+    "User-Agent":
+      "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36",
+  };
+}
+
+async function postAndUnzipImage(payload, key, maxRetries = 5, backoff = 1.5) {
+  let attempt = 0;
+  while (true) {
+    attempt += 1;
+    let resp;
+    try {
+      resp = await axios.post(NOVELAI_ENDPOINT, payload, {
+        headers: headers(key),
+        responseType: "arraybuffer",
+        validateStatus: () => true,
+        timeout: 120000,
+      });
+
+      const status = resp.status || 0;
+      const bodyBuf = Buffer.from(resp.data);
+      if (status === 429 && attempt <= maxRetries) {
+        await new Promise((r) => setTimeout(r, backoff * attempt * 1000));
+        continue;
+      }
+      if (status < 200 || status >= 300) {
+        // 尝试解析上游错误 json
+        let detail;
+        try {
+          detail = JSON.parse(bodyBuf.toString("utf-8"));
+        } catch {
+          detail = bodyBuf.toString("utf-8");
+        }
+        throw new Error(`上游生成失败（HTTP ${status}）: ${typeof detail === "string" ? detail : JSON.stringify(detail)}`);
+      }
+
+      const zip = new AdmZip(bodyBuf);
+      const entry = zip.getEntry("image_0.png");
+      if (!entry) {
+        throw new Error("Zip 内容缺少 image_0.png");
+      }
+      const data = entry.getData();
+      return data;
+    } catch (err) {
+      if (attempt > maxRetries) {
+        // 最终失败
+        throw err;
+      }
+      // 对网络错误简单重试
+      await new Promise((r) => setTimeout(r, backoff * attempt * 1000));
+    }
+  }
+}
+
+function ensureDir(p) {
+  fse.ensureDirSync(p);
+}
+
+function saveImageBytes(buf, folder) {
+  ensureDir(folder);
+  const name = `${Date.now()}_${Math.floor(Math.random() * 9000 + 1000)}.png`;
+  const full = path.join(folder, name);
+  fs.writeFileSync(full, buf);
+  return full;
+}
+
+function toB64(buf) {
+  return Buffer.from(buf).toString("base64");
+}
+
+// ---------- 构造 payload ----------
+function buildT2IJson(cfg, { prompt, negative, width, height, scale, steps, sampler, noise_schedule, seed, variety, decrisp, cfg_rescale }) {
+  const isV4 = (cfg.model || "").includes("nai-diffusion-4");
+
+  if (isV4) {
+    let resolvedSampler = sampler || cfg.sampler || "k_euler";
+    if (resolvedSampler === "ddim_v3") resolvedSampler = "k_euler";
+    const params = {
+      params_version: 3,
+      width: Number(width),
+      height: Number(height),
+      scale: Number(scale ?? cfg.scale),
+      sampler: resolvedSampler,
+      steps: Number(steps ?? cfg.steps),
+      n_samples: 1,
+      ucPreset: cfg.uc_preset,
+      qualityToggle: !!cfg.quality_toggle,
+      autoSmea: true,
+      dynamic_thresholding: !!(decrisp ?? false),
+      controlnet_strength: 1,
+      legacy: false,
+      add_original_image: false,
+      cfg_rescale: Number(cfg_rescale ?? cfg.cfg_rescale),
+      legacy_v3_extend: false,
+      seed: randSeed(seed),
+      use_coords: false,
+      legacy_uc: !!cfg.legacy_uc,
+      characterPrompts: [],
+      negative_prompt: negative || "",
+      reference_image_multiple: [],
+      reference_information_extracted_multiple: [],
+      reference_strength_multiple: [],
+      deliberate_euler_ancestral_bug: false,
+      prefer_brownian: true,
+      stream: "msgpack",
+    };
+    return {
+      input: prompt,
+      model: cfg.model,
+      action: "generate",
+      parameters: {
+        ...params,
+        v4_prompt: {
+          caption: { base_caption: prompt, char_captions: [] },
+          use_coords: false,
+          use_order: true,
+        },
+        v4_negative_prompt: {
+          caption: { base_caption: negative || "", char_captions: [] },
+          legacy_uc: !!cfg.legacy_uc,
+        },
+      },
+      use_new_shared_trial: true,
+    };
+  }
+
+  // 非 v4：skip_cfg_above_sigma 根据 variety + 模型决定
+  const modelName = String(cfg.model || "").toLowerCase();
+  let skipVal = null;
+  if (variety) {
+    if (modelName.includes("nai-diffusion-4-5")) skipVal = 58;
+    else if (modelName.includes("nai-diffusion-4")) skipVal = 19.343056794463642;
+    else skipVal = 19;
+  }
+
+  const resolvedSampler = sampler || cfg.sampler || "k_euler";
+  const payload = {
+    input: prompt,
+    model: cfg.model,
+    action: "generate",
+    parameters: {
+      params_version: 3,
+      width: Number(width),
+      height: Number(height),
+      scale: Number(scale ?? cfg.scale),
+      sampler: resolvedSampler,
+      steps: Number(steps ?? cfg.steps),
+      n_samples: 1,
+      ucPreset: cfg.uc_preset,
+      qualityToggle: !!cfg.quality_toggle,
+      sm: false,
+      sm_dyn: false,
+      dynamic_thresholding: !!(decrisp ?? false),
+      controlnet_strength: 1,
+      legacy: false,
+      add_original_image: false,
+      uncond_scale: 1,
+      cfg_rescale: Number(cfg_rescale ?? cfg.cfg_rescale),
+      legacy_v3_extend: false,
+      skip_cfg_above_sigma: skipVal,
+      seed: randSeed(seed),
+      negative_prompt: negative || "",
+      reference_image_multiple: [],
+      reference_information_extracted_multiple: [],
+      reference_strength_multiple: [],
+    },
+  };
+  // 仅当 sampler 不是 ddim_v3 时发送 noise_schedule
+  if (noise_schedule && resolvedSampler !== "ddim_v3") {
+    payload.parameters.noise_schedule = noise_schedule;
+  }
+  return payload;
+}
+
+function buildI2IJson(cfg, { positive, negative, image_base64, width, height, scale, steps, sampler, noise_schedule, strength, noise, seed, variety, decrisp, cfg_rescale }) {
+  const payload = {
+    input: positive,
+    model: cfg.model,
+    action: "img2img",
+    parameters: {
+      width: Number(width ?? 768),
+      height: Number(height ?? 768),
+      scale: Number(scale ?? cfg.scale),
+      sampler: sampler || cfg.sampler,
+      steps: Number(steps ?? cfg.steps),
+      n_samples: 1,
+      strength: Number(strength ?? 0.5),
+      noise: Number(noise ?? 0.0),
+      ucPreset: cfg.uc_preset,
+      qualityToggle: !!cfg.quality_toggle,
+      sm: false,
+      sm_dyn: false,
+      dynamic_thresholding: !!(decrisp ?? false),
+      controlnet_strength: 1,
+      legacy: false,
+      add_original_image: false,
+      uncond_scale: 1,
+      cfg_rescale: Number(cfg_rescale ?? cfg.cfg_rescale),
+      legacy_v3_extend: false,
+      skip_cfg_above_sigma: variety ? 58 : null,
+      params_version: 3,
+      seed: randSeed(seed),
+      image: image_base64,
+      extra_noise_seed: randSeed(seed),
+      negative_prompt: negative || "",
+      reference_image_multiple: [],
+      reference_information_extracted_multiple: [],
+      reference_strength_multiple: [],
+    },
+  };
+  if (noise_schedule) {
+    payload.parameters.noise_schedule = noise_schedule;
+  }
+  return payload;
+}
+
+function buildInpaintJson(cfg, { positive, negative, image_base64, mask_base64, add_original_image, width, height, scale, steps, sampler, noise_schedule, strength, noise, seed, variety, decrisp, cfg_rescale }) {
+  // Python 逻辑：某些模型强制使用 v3 inpainting
+  const special = ["nai-diffusion-2", "nai-diffusion-4-curated-preview", "nai-diffusion-4-full"];
+  const model = special.includes(cfg.model)
+    ? "nai-diffusion-3-inpainting"
+    : `${cfg.model}-inpainting`;
+
+  const payload = {
+    input: positive,
+    model,
+    action: "infill",
+    parameters: {
+      width: Number(width ?? 768),
+      height: Number(height ?? 768),
+      scale: Number(scale ?? cfg.scale),
+      sampler: sampler || cfg.sampler,
+      steps: Number(steps ?? cfg.steps),
+      n_samples: 1,
+      strength: Number(strength ?? 0.5),
+      noise: Number(noise ?? 0.0),
+      ucPreset: cfg.uc_preset,
+      qualityToggle: !!cfg.quality_toggle,
+      sm: false,
+      sm_dyn: false,
+      dynamic_thresholding: !!(decrisp ?? false),
+      controlnet_strength: 1,
+      legacy: false,
+      add_original_image: !!add_original_image,
+      uncond_scale: 1,
+      cfg_rescale: Number(cfg_rescale ?? cfg.cfg_rescale),
+      legacy_v3_extend: false,
+      skip_cfg_above_sigma: variety ? 58 : null,
+      params_version: 3,
+      seed: randSeed(seed),
+      image: image_base64,
+      mask: mask_base64,
+      extra_noise_seed: randSeed(seed),
+      negative_prompt: negative || "",
+      reference_image_multiple: [],
+      reference_information_extracted_multiple: [],
+      reference_strength_multiple: [],
+    },
+  };
+  if (noise_schedule) {
+    payload.parameters.noise_schedule = noise_schedule;
+  }
+  return payload;
+}
+
+// ---------- 生成导出 ----------
+async function generateT2I(cfg, args) {
+  const width = ensureX64(args.width ?? 768);
+  const height = ensureX64(args.height ?? 768);
+  const payload = buildT2IJson(cfg, { ...args, width, height });
+  const img = await postAndUnzipImage(payload, cfg.key || "");
+  const baseDir = cfg.output_dir || path.join(ROOT, "output");
+  const folder = path.join(baseDir, "t2i");
+  const savedPath = saveImageBytes(img, folder);
+  return { dataUri: asDataUriPng(toB64(img)), savedPath };
+}
+
+async function generateI2I(cfg, args) {
+  const width = args.width != null ? ensureX64(args.width) : null;
+  const height = args.height != null ? ensureX64(args.height) : null;
+  const payload = buildI2IJson(cfg, { ...args, width, height });
+  const img = await postAndUnzipImage(payload, cfg.key || "");
+  const baseDir = cfg.output_dir || path.join(ROOT, "output");
+  const folder = path.join(baseDir, "i2i");
+  const savedPath = saveImageBytes(img, folder);
+  return { dataUri: asDataUriPng(toB64(img)), savedPath };
+}
+
+async function generateInpaint(cfg, args) {
+  const width = args.width != null ? ensureX64(args.width) : null;
+  const height = args.height != null ? ensureX64(args.height) : null;
+  const payload = buildInpaintJson(cfg, { ...args, width, height });
+  const img = await postAndUnzipImage(payload, cfg.key || "");
+  const baseDir = cfg.output_dir || path.join(ROOT, "output");
+  const folder = path.join(baseDir, "inpaint");
+  const savedPath = saveImageBytes(img, folder);
+  return { dataUri: asDataUriPng(toB64(img)), savedPath };
+}
+
+module.exports = {
+  ensureX64,
+  generateT2I,
+  generateI2I,
+  generateInpaint,
+};

package-lock.json

@@ -0,0 +1,1512 @@
+{
+  "name": "new-nai-node",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "new-nai-node",
+      "version": "1.0.0",
+      "dependencies": {
+        "adm-zip": "^0.5.10",
+        "axios": "^1.7.2",
+        "compression": "^1.7.4",
+        "cors": "^2.8.5",
+        "express": "^4.19.2",
+        "fs-extra": "^11.2.0",
+        "helmet": "^7.0.0",
+        "morgan": "^1.10.0"
+      },
+      "devDependencies": {
+        "nodemon": "^3.1.0"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
+    "node_modules/accepts": {
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+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/accepts/node_modules/negotiator": {
+      "version": "0.6.3",
+      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
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+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/adm-zip": {
+      "version": "0.5.16",
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+      "license": "MIT",
+      "engines": {
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+      }
+    },
+    "node_modules/anymatch": {
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+      "dev": true,
+      "license": "ISC",
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+        "picomatch": "^2.0.4"
+      },
+      "engines": {
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+    "node_modules/array-flatten": {
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+      "license": "MIT"
+    },
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+        "form-data": "^4.0.4",
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+      }
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+      "license": "MIT"
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+        "safe-buffer": "5.1.2"
+      },
+      "engines": {
+        "node": ">= 0.8"
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+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
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+        "qs": "6.13.0",
+        "raw-body": "2.5.2",
+        "type-is": "~1.6.18",
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+      },
+      "engines": {
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+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    }
+  }
+}

package.json

@@ -0,0 +1,26 @@
+{
+  "name": "new-nai-node",
+  "version": "1.0.0",
+  "private": true,
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js",
+    "dev": "nodemon --watch ./ --ext js,json --ignore output --ignore \"Semi-Auto-NovelAI-to-Pixiv\" server.js"
+  },
+  "engines": {
+    "node": ">=18.0.0"
+  },
+  "dependencies": {
+    "express": "^4.19.2",
+    "cors": "^2.8.5",
+    "helmet": "^7.0.0",
+    "compression": "^1.7.4",
+    "morgan": "^1.10.0",
+    "axios": "^1.7.2",
+    "adm-zip": "^0.5.10",
+    "fs-extra": "^11.2.0"
+  },
+  "devDependencies": {
+    "nodemon": "^3.1.0"
+  }
+}

requirements.txt

@@ -0,0 +1,5 @@
+fastapi>=0.110,<1
+uvicorn[standard]>=0.23,<1
+requests>=2.31,<3
+pydantic>=2.4,<3
+httpx[http2]>=0.25,<1

server.js

@@ -0,0 +1,432 @@
+/**
+ * New NAI - Node.js/Express 服务
+ * 目标：保持与现有 FastAPI 接口一致，使前端无需改动即可运行。
+ *
+ * 实现接口：
+ * - GET  /api/health
+ * - GET  /api/config
+ * - PUT  /api/config
+ * - GET  /api/select-output-dir   （本地桌面环境：弹出目录选择器；无 GUI 环境会失败）
+ * - POST /api/open-dir            （打开目录，若未传 path 则读取配置中的 output_dir）
+ *
+ * 静态资源：
+ * - /       -> ./frontend （index.html 单页）
+ * - /ring   -> ./ring     （提示音目录）
+ *   - 兼容别名：/ring/ring.mp3 若实际不存在则回退到 new-notification-3-398649.mp3
+ *
+ * 注意：本文件尚未实现 /api/generate/* 生成接口；将在后续步骤补充。
+ */
+
+const path = require('path');
+const fs = require('fs');
+const fse = require('fs-extra');
+const os = require('os');
+const http = require('http');
+const express = require('express');
+const cors = require('cors');
+const helmet = require('helmet');
+const compression = require('compression');
+const morgan = require('morgan');
+const { spawn } = require('child_process');
+const { generateT2I, generateI2I, generateInpaint } = require('./novelai');
+
+const app = express();
+
+// ---------- 常量与路径 ----------
+const ROOT = __dirname;
+const FRONTEND_DIR = path.join(ROOT, 'frontend');
+const RING_DIR = path.join(ROOT, 'ring');
+const CONFIG_PATH = path.join(ROOT, 'backend', 'config.json');
+
+// ---------- 中间件 ----------
+app.disable('x-powered-by');
+app.use(cors({
+  origin: '*',
+  credentials: false,
+  methods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
+  allowedHeaders: ['Content-Type', 'Authorization', 'x-api-key']
+}));
+
+// Helmet 安全头（简化版 CSP，允许被同源 iframe 嵌入；可按需扩展）
+app.use(helmet({
+  contentSecurityPolicy: {
+    useDefaults: true,
+    directives: {
+      "default-src": ["'self'"],
+      "img-src": ["'self'", "data:", "blob:"],
+      "style-src": ["'self'", "'unsafe-inline'"],
+      "script-src": ["'self'"],
+      "font-src": ["'self'", "data:"],
+      "connect-src": ["'self'"],
+      "frame-ancestors": ["'self'"], // 需要允许外部嵌入可在此添加域
+    }
+  },
+  crossOriginResourcePolicy: { policy: "same-origin" }
+}));
+
+app.use(compression());
+app.use(express.json({ limit: '50mb' })); // 前端传参与图片 Base64，放宽到 50MB
+app.use(morgan('dev'));
+
+// ---------- 工具函数：配置读写与默认值 ----------
+const DEFAULT_CONFIG = {
+  key: null,
+  model: "nai-diffusion-3",
+  sampler: "k_euler",
+  steps: 28,
+  scale: 5.0,
+  cfg_rescale: 0.0,
+  noise_schedule: "karras",
+  uc_preset: 4,
+  quality_toggle: true,
+  legacy_uc: false,
+  port: 9180,
+  save_output: true,
+  output_dir: path.join(ROOT, 'output'),
+  // UI 配色与提示音（与前端一致）
+  color_scheme: "auto",
+  custom_primary: null,
+  sound_enabled: false,
+  sound_url: "/ring/ring.mp3"
+};
+
+function readConfig() {
+  try {
+    if (fs.existsSync(CONFIG_PATH)) {
+      const raw = fs.readFileSync(CONFIG_PATH, 'utf-8');
+      const fileCfg = JSON.parse(raw || '{}');
+      // 合并默认值，确保前端读取字段齐全
+      return { ...DEFAULT_CONFIG, ...fileCfg };
+    }
+  } catch (e) {
+    // ignore and fallback
+  }
+  // 若不存在则写入默认文件
+  writeConfig(DEFAULT_CONFIG);
+  return { ...DEFAULT_CONFIG };
+}
+
+function writeConfig(cfg) {
+  const merged = { ...DEFAULT_CONFIG, ...(cfg || {}) };
+  fse.ensureDirSync(path.dirname(CONFIG_PATH));
+  fs.writeFileSync(CONFIG_PATH, JSON.stringify(merged, null, 2), 'utf-8');
+  return merged;
+}
+
+// ---------- 工具函数：系统命令 ----------
+function runSpawn(cmd, args, options = {}) {
+  return new Promise((resolve, reject) => {
+    const child = spawn(cmd, args, {
+      stdio: ['ignore', 'pipe', 'pipe'],
+      shell: false,
+      ...options
+    });
+    let stdout = '';
+    let stderr = '';
+    child.stdout.on('data', (d) => { stdout += d.toString(); });
+    child.stderr.on('data', (d) => { stderr += d.toString(); });
+    child.on('error', reject);
+    child.on('close', (code) => {
+      if (code === 0) resolve({ stdout, stderr, code });
+      else reject(new Error(stderr || `Exit code ${code}`));
+    });
+  });
+}
+
+function sleep(ms) {
+  return new Promise(r => setTimeout(r, ms));
+}
+
+// Windows: 使用 COM Shell.Application 弹出目录选择器
+async function winBrowseForFolder() {
+  try {
+    const psCmd = `$f=(New-Object -ComObject Shell.Application).BrowseForFolder(0,"选择保存目录",0); if($f){$f.Self.Path}`;
+    const { stdout } = await runSpawn('powershell.exe', ['-NoProfile', '-Command', psCmd], { timeout: 60000 });
+    const out = (stdout || '').trim();
+    if (out) return out;
+  } catch (e) {
+    // ignore, fallback to VBS
+  }
+
+  // VBScript 兜底：cscript //nologo temp.vbs
+  const vbs = [
+    'Set sh = CreateObject("Shell.Application")',
+    'Set f = sh.BrowseForFolder(0, "选择保存目录", 0)',
+    'If (Not f Is Nothing) Then',
+    '  WScript.Echo f.Self.Path',
+    'End If'
+  ].join('\n');
+
+  const osTmp = os.tmpdir();
+  const vbsPath = path.join(osTmp, `browse_${Date.now()}.vbs`);
+  fs.writeFileSync(vbsPath, vbs, 'utf-8');
+  try {
+    const { stdout } = await runSpawn('cscript.exe', ['//nologo', vbsPath], { timeout: 60000 });
+    const out = (stdout || '').trim();
+    if (out) return out;
+  } finally {
+    try { fs.unlinkSync(vbsPath); } catch {}
+  }
+  throw new Error('Windows 目录选择失败');
+}
+
+async function darwinChooseFolder() {
+  const script = 'tell application "System Events" to POSIX path of (choose folder with prompt "选择保存目录")';
+  const { stdout } = await runSpawn('osascript', ['-e', script], { timeout: 60000 });
+  const out = (stdout || '').trim();
+  if (out) return out;
+  throw new Error('macOS 目录选择失败');
+}
+
+async function linuxZenity() {
+  const { stdout } = await runSpawn('zenity', ['--file-selection', '--directory', '--title=选择保存目录'], { timeout: 60000 });
+  const out = (stdout || '').trim();
+  if (out) return out;
+  throw new Error('Linux 目录选择失败 / zenity 不可用');
+}
+
+async function pickDirectory() {
+  const sys = os.platform(); // win32, darwin, linux
+  if (sys === 'win32') {
+    return await winBrowseForFolder();
+  } else if (sys === 'darwin') {
+    return await darwinChooseFolder();
+  } else if (sys === 'linux') {
+    return await linuxZenity();
+  }
+  throw new Error(`不支持的系统平台：${sys}`);
+}
+
+async function openDirectory(p) {
+  const sys = os.platform();
+  if (sys === 'win32') {
+    // 使用 explorer 打开目录；或 start 命令
+    await runSpawn('explorer.exe', [p]);
+  } else if (sys === 'darwin') {
+    await runSpawn('open', [p]);
+  } else {
+    // linux
+    await runSpawn('xdg-open', [p]);
+  }
+}
+
+// ---------- API 路由 ----------
+
+// 健康检查
+app.get('/api/health', (req, res) => {
+  res.json({ status: 'ok' });
+});
+
+// 获取配置
+app.get('/api/config', (req, res) => {
+  try {
+    const cfg = readConfig();
+    res.json(cfg);
+  } catch (e) {
+    res.status(500).json({ detail: String(e && e.message || e) });
+  }
+});
+
+// 更新配置（部分字段）
+app.put('/api/config', (req, res) => {
+  try {
+    const current = readConfig();
+    const body = req.body || {};
+    // 仅合并非 undefined 的字段；允许 null 写入（表示清空）
+    const next = { ...current };
+    for (const k of Object.keys(body)) {
+      next[k] = body[k];
+    }
+    const saved = writeConfig(next);
+    res.json(saved);
+  } catch (e) {
+    res.status(500).json({ detail: String(e && e.message || e) });
+  }
+});
+
+// 选择输出目录（桌面环境）
+app.get('/api/select-output-dir', async (req, res) => {
+  try {
+    const p = await pickDirectory();
+    if (!p) return res.status(500).json({ detail: '未选择任何目录' });
+    return res.json({ path: p });
+  } catch (e) {
+    // 与前端对齐：返回 { detail }
+    return res.status(500).json({ detail: String(e && e.message || e) });
+  }
+});
+
+// 打开目录
+app.post('/api/open-dir', async (req, res) => {
+  try {
+    let target = (req.body && req.body.path) || '';
+    if (!target) {
+      const cfg = readConfig();
+      target = cfg.output_dir || '';
+    }
+    if (!target) {
+      return res.status(400).json({ detail: '未提供路径且配置中未设置 output_dir' });
+    }
+    await fse.ensureDir(target);
+    try {
+      await openDirectory(target);
+    } catch (e) {
+      // 某些无 GUI 环境会失败，但仍视作已准备好目录
+    }
+    res.json({ ok: true, path: target });
+  } catch (e) {
+    res.status(500).json({ detail: String(e && e.message || e) });
+  }
+});
+
+// 生成接口：T2I
+app.post('/api/generate/t2i', async (req, res) => {
+ try {
+   const cfg = readConfig();
+   if (!cfg.key) {
+     return res.status(400).json({ detail: '尚未配置 key，请先在配置中设置 key。' });
+   }
+   const b = req.body || {};
+   const { dataUri, savedPath } = await generateT2I(cfg, {
+     prompt: b.prompt,
+     negative: b.negative || '',
+     width: b.width ?? 768,
+     height: b.height ?? 768,
+     scale: b.scale ?? null,
+     steps: b.steps ?? null,
+     sampler: b.sampler ?? null,
+     noise_schedule: b.noise_schedule ?? null,
+     seed: b.seed ?? -1,
+     variety: !!b.variety,
+     decrisp: !!b.decrisp,
+     cfg_rescale: b.cfg_rescale ?? null,
+   });
+   return res.json({ image_base64: dataUri, saved_path: savedPath });
+ } catch (e) {
+   return res.status(500).json({ detail: String((e && e.message) || e) });
+ }
+});
+
+// 生成接口：I2I
+app.post('/api/generate/i2i', async (req, res) => {
+ try {
+   const cfg = readConfig();
+   if (!cfg.key) {
+     return res.status(400).json({ detail: '尚未配置 key，请先在配置中设置 key。' });
+   }
+   const b = req.body || {};
+   const { dataUri, savedPath } = await generateI2I(cfg, {
+     positive: b.positive || '',
+     negative: b.negative || '',
+     image_base64: b.image_base64,
+     width: b.width ?? null,
+     height: b.height ?? null,
+     scale: b.scale ?? null,
+     steps: b.steps ?? null,
+     sampler: b.sampler ?? null,
+     noise_schedule: b.noise_schedule ?? null,
+     strength: b.strength ?? 0.5,
+     noise: b.noise ?? 0.0,
+     seed: b.seed ?? -1,
+     variety: !!b.variety,
+     decrisp: !!b.decrisp,
+     cfg_rescale: b.cfg_rescale ?? null,
+   });
+   return res.json({ image_base64: dataUri, saved_path: savedPath });
+ } catch (e) {
+   return res.status(500).json({ detail: String((e && e.message) || e) });
+ }
+});
+
+// 生成接口：Inpaint
+app.post('/api/generate/inpaint', async (req, res) => {
+ try {
+   const cfg = readConfig();
+   if (!cfg.key) {
+     return res.status(400).json({ detail: '尚未配置 key，请先在配置中设置 key。' });
+   }
+   const b = req.body || {};
+   const { dataUri, savedPath } = await generateInpaint(cfg, {
+     positive: b.positive || '',
+     negative: b.negative || '',
+     image_base64: b.image_base64,
+     mask_base64: b.mask_base64,
+     add_original_image: !!b.add_original_image,
+     width: b.width ?? null,
+     height: b.height ?? null,
+     scale: b.scale ?? null,
+     steps: b.steps ?? null,
+     sampler: b.sampler ?? null,
+     noise_schedule: b.noise_schedule ?? null,
+     strength: b.strength ?? 0.5,
+     noise: b.noise ?? 0.0,
+     seed: b.seed ?? -1,
+     variety: !!b.variety,
+     decrisp: !!b.decrisp,
+     cfg_rescale: b.cfg_rescale ?? null,
+   });
+   return res.json({ image_base64: dataUri, saved_path: savedPath });
+ } catch (e) {
+   return res.status(500).json({ detail: String((e && e.message) || e) });
+ }
+});
+
+// ---------- 静态资源 ----------
+
+// 铃声目录
+app.use('/ring', express.static(RING_DIR, { fallthrough: true }));
+
+// 兼容别名：/ring/ring.mp3 -> 若 ring.mp3 不存在则回退到 new-notification-3-398649.mp3
+app.get('/ring/ring.mp3', (req, res, next) => {
+  const main = path.join(RING_DIR, 'ring.mp3');
+  const alt = path.join(RING_DIR, 'new-notification-3-398649.mp3');
+  if (fs.existsSync(main)) return res.sendFile(main);
+  if (fs.existsSync(alt)) return res.sendFile(alt);
+  return res.status(404).end();
+});
+
+// 前端静态资源（单页）
+app.use('/', express.static(FRONTEND_DIR, { index: 'index.html' }));
+
+// ---------- 启动服务 ----------
+function resolvePort() {
+  // 优先环境变量 PORT，其次配置文件 port，最后默认 9180
+  const envPort = parseInt(process.env.PORT || '', 10);
+  if (!Number.isNaN(envPort) && envPort > 0) return envPort;
+  const cfg = readConfig();
+  const cfgPort = parseInt(String(cfg.port || ''), 10);
+  if (!Number.isNaN(cfgPort) && cfgPort > 0) return cfgPort;
+  return 9180;
+}
+
+const PORT = resolvePort();
+const HOST = process.env.HOST || '0.0.0.0';
+
+const server = http.createServer(app);
+server.listen(PORT, HOST, () => {
+  const url = `http://${HOST}:${PORT}`;
+  // 模拟 Python 版本的延迟打开浏览器（仅本地）
+  if (HOST === '127.0.0.1' || HOST === '0.0.0.0') {
+    const shouldOpen = process.env.AUTO_OPEN_BROWSER !== '0';
+    if (shouldOpen) {
+      setTimeout(() => {
+        try {
+          const platform = os.platform();
+          if (platform === 'win32') {
+            // start "" "url"
+            spawn('cmd', ['/c', 'start', '', url], { detached: true, stdio: 'ignore' }).unref();
+          } else if (platform === 'darwin') {
+            spawn('open', [url], { detached: true, stdio: 'ignore' }).unref();
+          } else {
+            spawn('xdg-open', [url], { detached: true, stdio: 'ignore' }).unref();
+          }
+        } catch { /* ignore */ }
+      }, 1500);
+    }
+  }
+  // eslint-disable-next-line no-console
+  console.log(`[New NAI] Express server is running at ${url}`);
+});
+
+// 导出 app 以便测试或其他入口使用
+module.exports = { app };