[fuhao6539-ship-it]

CCY1-2746 — Native unfinished Issue event continuation (Draft review)

Problem

• Existing TaskService.NotifyTaskFinished only wakes the daemon to reclaim tasks already queued; unfinished todo / in_progress Issues without an active Task are not always requeued.
• CCY needs original Task terminal event -> existing Issue/Agent eligibility -> native Task queue -> existing Oracle daemon Claim. Oracle owns its concurrency slots; no second task database or capacity allocator.

Changes

• Opt-in original Workspace configuration (oracle_issue_events) and exact already registered Agent/Runtime identities. Disabled by default; no runtime/Agent/Browser changes.
• Existing NotifyTaskFinished requests a same-Issue successor after a completed Task. Original agent_task_queue and daemon notification are reused. The existing leased Wakeup Tick recovers missed events after restart.
• Honor direct Issue assignee, native Agent readiness, normal effective status and triage rules. Only todo/in_progress with original assigned permitted agent auto-execute. done, cancelled, backlog, blocked/Triage and member-owned Issues remain events but do not automatically launch Oracle.
• Preserve native Task retry/exhaustion: latest failed attempt prevents fresh attempt-1 loop. Original existing pending/dispatched/running tasks suppress double enqueue.
• Isolated database safety: partial unique active native-event index; lock/claim fence, normal close and workspace opt-out cleanup, bounded recovery of abandoned unstarted event Tasks.
• Migration numbers use 617/618 because official upstream now uses 615/616 for unrelated features.

Provenance and checks

• Rebased on official multica-ai/multica main 164290e (2026-11-06). Fork commit fae1620.
• VN WebCodex original project Go tests: go test ./internal/service -run TestNativeEvent|TestNativeIssueEvent|TestNativeEventQueue -count=1 PASS.
• go test ./cmd/migrate -run TestEveryConcurrent -count=1, go vet ./internal/service ./cmd/migrate ./pkg/db/generated, git diff --check PASS.
• Previous isolated R3 and R4 source revisions passed PostgreSQL16 concurrency and lifecycle tests; those tests were not yet repeated on this exact R7 commit and are not production E2E.

Required review before merge or rollout

• Verify exact native EnqueueTaskForIssue attribution/originator/owner and WillEnqueueRun eligibility equivalence. This draft currently uses a specialized original CreateAgentTask transaction and must not bypass existing business policies.
• PostgreSQL16 multi-connection migrations 617/618, rollback, concurrency and close/reopen repeat on this exact commit.
• Confirm original Task status transitions (NotifyTaskFinished receives completed), retry exhausted/UNKNOWN, latest failure fencing, event termination and no duplicate run under two Oracle daemons.
• Genuine production Canary: original Task/Run/Lease and VN/Mac Oracle ChatGPT browser session and real terminal event -> successor; no second Scheduler/Queue/Agent. Keep workspace opt-in disabled until approved.

Do not merge/deploy solely on unit-test PASS. Source Owner, independent reviewer, production release owner must validate. CCY original issue: CCY1-2746, UUID 01a1629c-7ca9-7aef-bd38-ee469ff158cb.

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