prioritize interactive provider turns

[pmbstyle]

Summary

• propagate explicit interactive and background lanes at the app-server provider boundary
• admit at most two provider processes, cap background work at one slot, preserve per-session serialization, and add bounded fairness
• return a direct-user progress response at safe 90/110 second budget checkpoints and enqueue exactly one non-nesting continuation
• detach a slow in-flight tool at the hard response deadline, wait for that same execution in the continuation, and never replay or cancel its side effect through continuation cancellation
• retain resumable mappings only after terminal turns and prevent tool side-effect replay across provider recovery
• preserve simultaneous terminal events when transport loss is reported

Validation

• 1473 passed, 1 platform-specific skip
• Ruff
• Black
• MyPy
• diff check

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 0455fe86-26a1-419d-b8fc-35451ebe6c77

📥 Commits

Reviewing files that changed from the base of the PR and between 32b9c2c and 09357aa.

📒 Files selected for processing (5)

• src/octopal/infrastructure/providers/codex_provider.py
• src/octopal/runtime/octo/route_continuations.py
• src/octopal/runtime/octo/router.py
• tests/test_codex_provider_sessions.py
• tests/test_router_tool_budget.py

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/interactive-provider-lane

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