feat(engine): add prompt queue, announcements, and transcript resume - #218
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Port of Year 0 PACK-02 and PACK-08 control plane capabilities into Hawk. - engine: Implemented thread-safe PromptQueue supporting priority scheduling (Normal, Steering, Interjection) and FIFO ordering. - engine: Implemented AnnouncementFeed managing in-session broadcast notices with TTL expiration. - engine: Wired PromptQueue and AnnouncementFeed accessors to Session. - engine: Implemented true transcript resume in agent_session_tool.go by replaying prior session messages from disk when ResumeFrom is provided. - tool: Added unit tests for structured AskUserQuestionTool option handling and validation. - tests: Added test suites for prompt queue priority/concurrency, announcement feed expiration, and subagent transcript resume.
- terminal: Track readDone state in Terminal when background reader terminates. - terminal: Update Read to drain buffered bytes properly. - tests: Update TestTerminal_LifecycleAndRead with bounded polling.
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Summary
Port of Year 0 PACK-02 and PACK-08 control plane capabilities into Hawk.
internal/engine/prompt_queue.go): Implemented thread-safePromptQueuewith priority levels (PriorityNormal,PrioritySteering,PriorityInterjection), FIFO sorting, pause/resume, clear/drain, and prompt lifecycle operations.internal/engine/announcements.go): ImplementedAnnouncementFeedmanaging session broadcast notices (info,warning,system,schedule) with TTL expiration and read-state tracking.internal/engine/session.go): InitializedPromptQueueandAnnouncementFeedinNewSessionWithClientand added thread-safe accessors onSession.internal/engine/agent_session_tool.go): ConnectedResumeFromsubagent requests tosession.Loadto restore full prior message history before executing follow-up turns.internal/tool/ask_user_test.go): Added comprehensive test coverage for option list formatting and input validation.Verification
go test -race ./internal/engine/... ./internal/tool/... ./internal/taskruntime/...-> PASS./scripts/check-internal-layer-imports.sh-> PASSmake lint-> 0 issueshawk verify-> verification passed