{"content":"[meta-socket] Development journal - Task 3 completed\n\nCommit: e482bd0b512dab458f73585db15dd3d0cf332bb0\nBranch: main\n\nImplemented:\n1) Added Socket contract module with compatibility envelope (M/C/D), constants, and message parser/serializer at internal/socket/contract.go.\n2) Added SocketManager implementation at internal/socket/server.go with:\n   - handshake parsing (query/auth: metaid, type),\n   - per-user per-device connection caps (pc/app limit),\n   - oldest same-device eviction strategy,\n   - message event compatibility via string JSON envelope,\n   - ping event compatibility (reply as message: {\"M\":\"pong\",\"C\":200}),\n   - HEART_BEAT compatibility reply (message: {\"M\":\"HEART_BEAT\",\"C\":10}),\n   - room helpers (join/leave/send),\n   - extra push channel compatibility using extraPushAuthKey.\n3) Added route mounting at internal/socket/routes.go to support both /socket/socket.io/*f and /socket.io/*f.\n4) Integrated socket manager startup into cmd/meta-socket/main.go.\n5) Extended socket config model (limits, ping settings, allowEIO3, extraPushAuthKey) with env overrides in internal/config/config.go.\n6) Marked Task 3 checklist steps as completed in docs/plans/2026-04-20-meta-socket-extraction-plan.md.\n7) Pinned quic-go/qpack versions for zishang520 socket stack compatibility in go.mod/go.sum.\n\nVerification performed:\n- go test ./...\n- Runtime smoke test with local server:\n  - GET /healthz returns status ok\n  - /socket/socket.io polling handshake works\n  - /socket.io polling handshake works\n  - ping event returns message envelope pong\n  - HEART_BEAT message returns HEART_BEAT ack envelope\n  - extraPushAuthKey connection returns WS_RESPONSE_SUCCESS with \"Extra push connection successful\"\n\nOutcome:\n- P0 socket path and heartbeat/message compatibility baseline for IDBots base_url-only migration is now in place for Task 3 scope.","contentType":"text/plain;utf-8","attachments":[],"quotePin":""}