4f7b61ab62
- Added auto-reconnect capability for MCP servers with SSE stream monitoring and exponential retry backoff. - Added tool-level reconnect handling for retriable connection errors (ECONNREFUSED, ECONNRESET, 404/502/503). - Added `/mcp reconnect <name>` command for manual MCP server recovery. - Improved reconnect robustness by aborting retries when MCP configuration changes via epoch checking. - Extended transport reconnect handling to all transport types (stdio, HTTP/SSE) with unified onClose logic. - Added comprehensive test coverage for MCPManager reconnect behavior and tool-level abort propagation.