feat(mission-control): restore MC tabs - temple, office, memory, claude, pdf-viewer, resume, resume-upload, temple-3d, demos

Also added:
- Memory API endpoints
- Briefs API endpoints
- AnveVoice stats API
- Claude spawn API
- TTS proxy
- Cleopatra voice widget
- api-auth middleware

app/api/claude/spawn/route.ts

@@ -0,0 +1,25 @@
+import { NextResponse } from 'next/server';
+
+export async function POST(request: Request) {
+  try {
+    const { tabId, tabName, apiKey } = await request.json();
+    
+    if (!apiKey) {
+      return NextResponse.json({ error: 'API key required' }, { status: 400 });
+    }
+
+    // For now, return instructions for manual spawn
+    // Real implementation would use sessions_spawn via OpenClaw SDK
+    const sessionKey = `claude-${tabId}-${Date.now()}`;
+    
+    return NextResponse.json({
+      success: true,
+      sessionId: sessionKey,
+      sessionKey,
+      message: `To start Claude Code for ${tabName}, use the spawn command in Horus`,
+      instruction: `Ask Horus to spawn a Claude session for ${tabName}`
+    });
+  } catch (error) {
+    return NextResponse.json({ error: 'Failed to spawn session' }, { status: 500 });
+  }
+}