Amended the plan to add client-side console log capturing and streaming options:

### Proposed Client Logging Design:
- **Client-Side Capture (Frontend Interception)**: Hook into standard browser console methods (`console.log`, `console.warn`, `console.error`) at client-side startup.
- **Client-to-Server Transmission**: 
  - **Option A (Recommended)**: Store captured logs in a local memory queue, and periodically perform a batched `POST /api/debug/client-logs` (every 2 seconds or when the queue hits 20 items) to minimize network overhead.
  - **Option B (WebSocket Channel)**: Stream logs instantly via persistent WebSockets, which adds structural and connection management complexity.
- **Server Storage & SSE Streaming**:
  - Store incoming client logs in a separate rolling 1000-line buffer `clientLogBuffer`.
  - Expose `GET /api/debug/client-logs/stream` (under the exact same dual-auth/webhook-secret constraints) to stream client-side logs in real-time via SSE to debugging tools.

The `implementation_plan.md` artifact has been successfully updated with these options.