fix: fast node creation, first-run modal, simplified docs

- Skip AI calls when no valid OpenAI key (fixes 9-13s timeout)
- Add first-run modal prompting for API key
- Rewrite README for first-time users
- Add /api/health endpoint
- Remove all Anthropic references (not used in OS)
- Fix bootstrap script (dev:local → dev)
- Fix next.config.js devIndicators warning
- Add Node 18+ version check

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/api/health/route.ts

@@ -0,0 +1,38 @@
+/**
+ * Main health check endpoint
+ * Returns overall system health status for quick verification
+ */
+
+import { NextResponse } from 'next/server';
+import { checkDatabaseHealth } from '@/services/database';
+import { hasValidOpenAiKey } from '@/services/database/descriptionService';
+
+export const runtime = 'nodejs';
+
+export async function GET() {
+  try {
+    const dbHealth = await checkDatabaseHealth();
+
+    const response = {
+      status: dbHealth.connected ? 'ok' : 'degraded',
+      database: dbHealth.connected ? 'connected' : 'disconnected',
+      vectorSearch: dbHealth.vectorExtension ? 'enabled' : 'disabled',
+      aiFeatures: hasValidOpenAiKey() ? 'enabled' : 'disabled (no API key)',
+      timestamp: new Date().toISOString(),
+    };
+
+    return NextResponse.json(response, {
+      status: dbHealth.connected ? 200 : 503,
+    });
+  } catch (error) {
+    return NextResponse.json(
+      {
+        status: 'error',
+        database: 'error',
+        error: error instanceof Error ? error.message : 'Unknown error',
+        timestamp: new Date().toISOString(),
+      },
+      { status: 500 }
+    );
+  }
+}

app/api/local/test-anthropic/route.ts

@@ -1,47 +0,0 @@
-import { NextRequest, NextResponse } from 'next/server';
-
-export async function POST(request: NextRequest) {
-  try {
-    const { apiKey } = await request.json();
-    if (typeof apiKey !== 'string' || apiKey.trim().length === 0) {
-      return NextResponse.json(
-        { ok: false, error: 'API key is required.' },
-        { status: 400 }
-      );
-    }
-
-    const response = await fetch('https://api.anthropic.com/v1/messages', {
-      method: 'POST',
-      headers: {
-        'x-api-key': apiKey.trim(),
-        'content-type': 'application/json',
-        'anthropic-version': '2023-06-01',
-      },
-      body: JSON.stringify({
-        model: 'claude-3-haiku-20240307',
-        max_tokens: 1,
-        messages: [{ role: 'user', content: 'test' }],
-      }),
-    });
-
-    if (!response.ok) {
-      const errorBody = await response.text();
-      return NextResponse.json(
-        {
-          ok: false,
-          status: response.status,
-          error: errorBody || 'Anthropic returned an error.',
-        },
-        { status: 200 }
-      );
-    }
-
-    return NextResponse.json({ ok: true });
-  } catch (error) {
-    const message = error instanceof Error ? error.message : 'Unknown error';
-    return NextResponse.json(
-      { ok: false, error: message },
-      { status: 500 }
-    );
-  }
-}

app/page.tsx

@@ -1,5 +1,11 @@
 import ThreePanelLayout from '@/components/layout/ThreePanelLayout';
+import FirstRunModal from '@/components/onboarding/FirstRunModal';
 
 export default function Home() {
-  return <ThreePanelLayout />;
+  return (
+    <>
+      <ThreePanelLayout />
+      <FirstRunModal />
+    </>
+  );
 }