feat(fable-mcp): build wheel in Docker image, serve download, add admin log tool, and Settings install UI

- Dockerfile: build fable-mcp wheel into /app/dist/ during image build
- routes/fable_mcp_dist.py: GET /api/fable-mcp/info + /download endpoints
- app.py: register fable_mcp_dist_bp
- fable_mcp/tools/admin.py: get_app_logs() hitting /api/admin/logs
- fable_mcp/server.py: fable_get_app_logs MCP tool
- SettingsView: "Fable MCP" section in API Keys tab with download button and install instructions
- client.ts: getFableMcpInfo() helper
- ci.yml: add fable-mcp/** to trigger paths

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/api/client.ts

@@ -426,6 +426,10 @@ export async function geocodeAddress(address: string): Promise<{ lat: number; lo
   }
 }
 
+export async function getFableMcpInfo(): Promise<{ available: boolean; filename: string | null }> {
+  return apiGet('/api/fable-mcp/info');
+}
+
 export async function apiStreamPost(
   path: string,
   body: unknown,