[Task][RFC]: Complete App conversations and reusable asynchronous work delivery

[huangruiteng]

Outcome / 目标

让 App 会话完整承接异步工作。One task tracks this RFC's delivery; keep implementation PRs and milestone evidence here instead of creating a parallel task tree.

Canonical design: RFC. Roadmap: S1/S3/S5 · R1–R3, under #4574. Design acceptance is distinct from implementation, live qualification and promotion.

Current boundary

Source audit: main at ce3862e33 (2026-09-28). This is source/PR inspection, not a new test or live-qualification claim.

Conversation ingress and result-return work are partially shipped, including #5170. #5139, #5130 and #5106 are open at this audit for recovery and GoalRef integration; their changes are not assumed merged.

Work remaining

• Deliver the RFC’s nearest exit: an ordinary App request reaches a qualified existing owner, accepts correction, survives interruption and returns a checked artifact to the original conversation.
• Converge reusable inbox pending/replay/disposition rules in the existing TS owner while provider authentication, addressing and formatting stay in the adapter.

Ownership and ongoing work

Implementation is already active. Coordinate on the existing PRs instead of opening a competing inbox/session store. #4339 owns semantic handoff; #3786 owns shared presentation. This issue is the RFC-level delivery record.

Contribution route: implementation/integration overlaps active work. Start from the linked current owners/PRs and identify an unowned acceptance gap in a claim comment; do not begin a competing rewrite.

Acceptance

• Test managed and attached entrypoints, reconnect, stop, duplicate delivery and a late return after the active session changes.
• Distinguish accepted, deferred, failed, running and delivered from actual receipts; no manual owner lookup or manual result relay in the qualified journey.
• Packaged frontend and CLI independently read back the same request, owner, revision, disposition and result.
• Reconcile the RFC's current delivery checkpoint and this issue with the integrated revision, commands, passed/failed/untested evidence and remaining gates. Close the accepted scope only; no claim that a merged PR alone completes the RFC.

Starting points and delivery boundary

• loopx/chat_server.py
• loopx/control_plane/collaboration
• apps/presentation/dashboard/src/features/personal-workspace

Base: latest main. Reuse the existing typed owner and provider boundaries. Include affected CLI/frontend/Lark companions; verify real entrypoints and backend where changed. Preserve existing first-screen review and maintainer merge gates. Public artifacts contain only synthetic/public-safe evidence, no private operational state. This task does not authorize provider promotion, benchmark launches, release/deployment or unrelated protected effects.