Update app/config.py

app/config.py

@@ -1,14 +1,36 @@
 from pydantic import BaseModel
 import os
 
+def _default_sqlite_url() -> str:
+    """
+    /data があれば最優先（HF Spacesの永続領域）
+    次に /tmp（Cloud Run等の書込可領域）
+    最後にカレント（ローカル）
+    """
+    candidates = ["/data/app.db", "/tmp/app.db", "./app.db"]
+    for path in candidates:
+        try:
+            dirpath = os.path.dirname(path) or "."
+            os.makedirs(dirpath, exist_ok=True)
+            # 書き込み可能か簡易チェック（touch → 削除）
+            probe = path + ".touch"
+            with open(probe, "w") as f:
+                f.write("ok")
+            os.remove(probe)
+            return f"sqlite+pysqlite:///{path}"
+        except Exception:
+            continue
+    # 最後の砦
+    return "sqlite+pysqlite:///./app.db"
+
 class Settings(BaseModel):
     APP_ENV: str = os.getenv("APP_ENV", "dev")
     SECRET_KEY: str = os.getenv("SECRET_KEY", "change_me")
     ALLOWED_ORIGINS: str = os.getenv("ALLOWED_ORIGINS", "*")
     BASE_URL: str = os.getenv("BASE_URL", "http://localhost:7860")
 
-    # Fallback to SQLite if DATABASE_URL not provided (lets Spaces boot)
-    DATABASE_URL: str = os.getenv("DATABASE_URL", "sqlite+pysqlite:///./app.db")
+    # 未設定なら書込み可能な場所を自動検出
+    DATABASE_URL: str = os.getenv("DATABASE_URL", _default_sqlite_url())
 
     CELERY_BROKER_URL: str = os.getenv("CELERY_BROKER_URL", "")
     CELERY_RESULT_BACKEND: str = os.getenv("CELERY_RESULT_BACKEND", "")