feat: SettingsPage — white + blue card layout

frontend/src/pages/SettingsPage.tsx

@@ -1,38 +1,94 @@
-import React from 'react';
+import { useState, useEffect } from 'react';
+
+const API = import.meta.env.VITE_API_URL || 'http://localhost:8000';
 
 export function SettingsPage() {
+  const [provider, setProvider] = useState<any>(null);
+
+  useEffect(() => {
+    fetch(`${API}/api/v1/provider`).then(r => r.json()).then(setProvider).catch(() => {});
+  }, []);
+
   return (
     <div className="max-w-3xl mx-auto px-6 py-8">
-      <h1 className="text-xl font-bold mb-6">Settings</h1>
-      <div className="space-y-4">
-        <div className="p-5 rounded-xl bg-white/[0.015] border border-white/[0.05]">
-          <h3 className="text-sm font-semibold text-white mb-3">🤖 LLM Provider Configuration</h3>
-          <p className="text-xs text-gray-500 mb-4">Configure in backend <code className="bg-white/5 px-1.5 py-0.5 rounded">.env</code> file. Supports ANY OpenAI-compatible API.</p>
-          <div className="space-y-3">
-            <div><label className="text-[11px] text-gray-400 block mb-1">LLM_BASE_URL</label><input disabled value="https://api.groq.com/openai/v1" className="w-full bg-white/[0.03] border border-white/[0.06] rounded-lg px-3 py-2 text-xs text-gray-400" /></div>
-            <div><label className="text-[11px] text-gray-400 block mb-1">LLM_MODEL</label><input disabled value="llama-3.3-70b-versatile" className="w-full bg-white/[0.03] border border-white/[0.06] rounded-lg px-3 py-2 text-xs text-gray-400" /></div>
-            <div><label className="text-[11px] text-gray-400 block mb-1">LLM_API_KEY</label><input disabled value="••••••••" type="password" className="w-full bg-white/[0.03] border border-white/[0.06] rounded-lg px-3 py-2 text-xs text-gray-400" /></div>
-          </div>
-          <p className="text-[10px] text-gray-600 mt-3">Supported: Groq, Featherless, OpenAI, Together, DeepSeek, OpenRouter, Mistral, Ollama, LM Studio</p>
+      <div className="mb-6">
+        <h1 className="text-2xl font-bold text-slate-900">Settings</h1>
+        <p className="text-slate-500 text-sm mt-1">LLM provider configuration and system info</p>
+      </div>
+
+      <div className="space-y-5">
+        {/* LLM Provider */}
+        <div className="card p-6">
+          <h3 className="text-base font-semibold text-slate-900 mb-4">🤖 LLM Provider</h3>
+          {provider ? (
+            <div className="space-y-3">
+              <div className="flex justify-between py-2 border-b border-slate-100">
+                <span className="text-sm text-slate-500">Provider</span>
+                <span className="text-sm font-medium text-slate-900">{provider.provider}</span>
+              </div>
+              <div className="flex justify-between py-2 border-b border-slate-100">
+                <span className="text-sm text-slate-500">Model</span>
+                <span className="text-sm font-mono text-slate-900">{provider.model}</span>
+              </div>
+              <div className="flex justify-between py-2 border-b border-slate-100">
+                <span className="text-sm text-slate-500">Base URL</span>
+                <span className="text-sm font-mono text-slate-600 truncate max-w-[250px]">{provider.base_url}</span>
+              </div>
+              <div className="flex justify-between py-2 border-b border-slate-100">
+                <span className="text-sm text-slate-500">Max Tokens</span>
+                <span className="text-sm text-slate-900">{provider.max_tokens}</span>
+              </div>
+              <div className="flex justify-between py-2">
+                <span className="text-sm text-slate-500">Status</span>
+                <span className={`text-sm font-medium ${provider.configured ? 'text-green-600' : 'text-red-600'}`}>
+                  {provider.configured ? '✓ Connected' : '✗ Not configured'}
+                </span>
+              </div>
+            </div>
+          ) : (
+            <div className="skeleton h-32" />
+          )}
         </div>
 
-        <div className="p-5 rounded-xl bg-white/[0.015] border border-white/[0.05]">
-          <h3 className="text-sm font-semibold text-white mb-3">⚡ Pipeline Settings</h3>
-          <div className="grid grid-cols-2 gap-4 text-xs">
-            <div className="flex justify-between"><span className="text-gray-400">Multi-Agent Mode</span><span className="text-emerald-400">Enabled</span></div>
-            <div className="flex justify-between"><span className="text-gray-400">Max Iterations</span><span className="text-white">2</span></div>
-            <div className="flex justify-between"><span className="text-gray-400">Quality Threshold</span><span className="text-white">Grade B (70%)</span></div>
-            <div className="flex justify-between"><span className="text-gray-400">Mutation Feedback</span><span className="text-emerald-400">Active</span></div>
+        {/* Pipeline */}
+        <div className="card p-6">
+          <h3 className="text-base font-semibold text-slate-900 mb-4">⚙️ Pipeline Settings</h3>
+          <div className="space-y-3">
+            <div className="flex justify-between py-2 border-b border-slate-100">
+              <span className="text-sm text-slate-500">Max Iterations</span>
+              <span className="text-sm text-slate-900">5</span>
+            </div>
+            <div className="flex justify-between py-2 border-b border-slate-100">
+              <span className="text-sm text-slate-500">Quality Threshold</span>
+              <span className="text-sm text-slate-900">Grade A (85%+)</span>
+            </div>
+            <div className="flex justify-between py-2 border-b border-slate-100">
+              <span className="text-sm text-slate-500">Mutation Testing</span>
+              <span className="text-sm text-green-600 font-medium">Enabled (real execution)</span>
+            </div>
+            <div className="flex justify-between py-2">
+              <span className="text-sm text-slate-500">Syntax Validation</span>
+              <span className="text-sm text-green-600 font-medium">Enabled (AST parse)</span>
+            </div>
           </div>
         </div>
 
-        <div className="p-5 rounded-xl bg-white/[0.015] border border-white/[0.05]">
-          <h3 className="text-sm font-semibold text-white mb-3">📊 System Info</h3>
-          <div className="grid grid-cols-2 gap-4 text-xs">
-            <div className="flex justify-between"><span className="text-gray-400">Version</span><span className="text-white">2.0.0</span></div>
-            <div className="flex justify-between"><span className="text-gray-400">Agents</span><span className="text-white">5 active</span></div>
-            <div className="flex justify-between"><span className="text-gray-400">Novelties</span><span className="text-white">8 features</span></div>
-            <div className="flex justify-between"><span className="text-gray-400">Research</span><span className="text-white">MuTAP + HITS</span></div>
+        {/* Info */}
+        <div className="card p-6">
+          <h3 className="text-base font-semibold text-slate-900 mb-4">ℹ️ System</h3>
+          <div className="space-y-3">
+            <div className="flex justify-between py-2 border-b border-slate-100">
+              <span className="text-sm text-slate-500">Version</span>
+              <span className="text-sm text-slate-900">v2.0.0</span>
+            </div>
+            <div className="flex justify-between py-2 border-b border-slate-100">
+              <span className="text-sm text-slate-500">Research Basis</span>
+              <span className="text-sm text-slate-900">MuTAP (ISSTA'23) + HITS (ASE'24)</span>
+            </div>
+            <div className="flex justify-between py-2">
+              <span className="text-sm text-slate-500">API Docs</span>
+              <a href={`${API}/docs`} target="_blank" className="text-sm text-blue-600 hover:underline">{API}/docs</a>
+            </div>
           </div>
         </div>
       </div>