Register archive/unarchive MCP tools in mcp-bridge

## Problem Archive MCP tools (`archive_tickets`, `list_archived_tickets`, `unarchive_ticket`) exist in Rails with proper permissions but are NOT registered in mcp-bridge. Agents cannot call them. ## Context - Tools are defined in `app/controllers/api/v1/mcp_controller.rb` - Permissions configured in `config/tinker/mcp_permissions.yml` for orchestrator/planner - Missing from `mcp-bridge/src/tools/index.ts` ## Work Required Register these 3 tools in `mcp-bridge/src/tools/index.ts`: 1. **archive_tickets** - Batch archive tickets (done/cancelled only) - Input: `ticket_ids: array of integers` - Calls: `POST /mcp/execute { tool: 'archive_tickets', params: { ticket_ids: [...] } }` 2. **list_archived_tickets** - List archived tickets - Input: optional filters - Calls: `POST /mcp/execute { tool: 'list_archived_tickets', params: {...} }` 3. **unarchive_ticket** - Restore single archived ticket - Input: `ticket_id: integer` - Calls: `POST /mcp/execute { tool: 'unarchive_ticket', params: { ticket_id: ... } }` ## Note Remove singular `archive_ticket` from Rails - batch version handles single elements via array of 1. ## Acceptance Criteria - All 3 tools registered in mcp-bridge with proper inputSchema - Tools callable by orchestrator/planner agents - Singular `archive_ticket` removed from Rails controller