feat(gateway): Phase 3 - Generate Wiki with Connector

[TelivANT]

Phase 3 Implementation

Features

• ✅ Generate wiki using connector
• ✅ Clone storage to temp directory
• ✅ Async job execution
• ✅ Job status tracking

New Endpoint

POST /v1/wiki/connectors/generate

Request:

{
  "connector_id": "<uuid>",
  "path": "/path/to/generate",
  "config": {}
}

Response:

{
  "job_id": "wiki-<uuid>",
  "status": "pending",
  "message": "Wiki generation started"
}

Complete API Flow

1. POST /v1/wiki/connectors/test
   → Returns connector_id

2. POST /v1/wiki/connectors/browse
   → Browse directories with connector_id

3. POST /v1/wiki/connectors/generate
   → Start generation, returns job_id

4. GET /v1/wiki/jobs/{job_id}
   → Check generation status

Implementation

• Uses existing WikiJob system
• Calls connector.clone_to_temp()
• Background task with tokio::spawn
• Integrates with LLM adapter

Progress

• ✅ Phase 1: List, Test, Browse (3/7 endpoints)
• ✅ Phase 2: Session management
• ✅ Phase 3: Wiki generation (4/7 endpoints)
• ⏳ Phase 4: Save/list configs (2/7 endpoints)

Closes #33 follow-up