[Task][RFC]: Qualify the effective manager runtime profile across sessions #5212

Outcome / 目标

验收管家有效运行配置与会话一致性。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/S4/S9 · manager M1, 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.

The machine-level restricted/trusted_owner configuration, controller integration and focused tests are already recorded as shipped. The RFC explicitly separates that implementation from deployment and full M1 qualification.

Work remaining

• Verify the effective config, sandbox, prompt, workspace instructions and active upstream Session agree on the real supported endpoint.
• Finish restart/profile-change/downgrade recovery and existing settings readback without adding a second configuration source.

Ownership and ongoing work

Reuse #4339 and current manager/App work; coordinate with #5187 settings consolidation. This RFC owns profile consistency, not general handoff, outbox or a new permission system.

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

• Default/invalid config remains restricted with actionable repair; unsupported endpoints do not pretend to enforce trusted_owner.
• A material profile change rotates the upstream thread while preserving visible history; unrelated settings do not rotate it.
• External audiences remain restricted absent the existing scoped grant; protected operations retain their own authorization. CLI and actual frontend expose the effective Session profile.
• 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/capabilities/manager_runtime/machine_profile.py
• loopx/chat_manager.py
• apps/presentation/dashboard

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.