ci: add Python 3.14 test lane exercising the 3.14 compatibility surface

[spfcraze]

ci: add Python 3.14 test lane

Summary

Adds a test-py314 job to .github/workflows/tests.yml that exercises the
Python 3.14 compatibility surface on a supported CI interpreter. The
project's CI is currently 3.11-only (uv python install 3.11 /
uv sync --locked --python 3.11 in both test jobs); the 3.14 support work
(daemon_pool WorkerContext, wake-word ai-edge-litert bridge, stdlib
removals) has no CI coverage.

This addresses the gap noted in sweeper reviews of the daemon_pool 3.14
work: the project's requires-python was capped below 3.14, so the
3.14-specific tests could not exercise _create_worker_context on a
supported CI interpreter. Once the ceiling is raised, this lane is what
actually verifies the 3.14 surface on every PR.

What the lane runs

• uv sync --locked --python 3.14 --extra all --extra dev --extra wake
  — the same pinned lockfile, resolved for 3.14 (cp314 wheels verified for
  the full dependency set; tflite-runtime is excluded on 3.12+ via the
  marker-gated override in pyproject.toml).
• The 3.14-specific test surface, in one bounded run:
  • tests/tools/test_daemon_pool.py (WorkerContext)
  • tests/tools/test_wake_word.py (ai-edge-litert bridge)
  • tests/tools/test_delegate.py (depends on the daemon pool timeout executor)
  • tests/tools/test_async_delegation.py
  • tests/agent/test_compression_concurrent_fork.py
• API keys blanked (same as the 3.11 lane) — no real API calls.
• Separate job (not a matrix expansion) so a 3.14 regression fails
  independently of the 3.11 lane and the duration-cache merge.

Verification (this machine, Python 3.14.4, the exact lane command)

$ python -m pytest tests/tools/test_daemon_pool.py \
    tests/tools/test_wake_word.py tests/tools/test_delegate.py \
    tests/tools/test_async_delegation.py \
    tests/agent/test_compression_concurrent_fork.py \
    -q --no-header -p no:cacheprovider
156 passed, 3 skipped in 29.98s

Why this is additive

The open daemon_pool 3.14 PRs all modify tools/daemon_pool.py; none
touches .github/workflows/. This PR is CI-only — it makes all of those
fixes verifiable, and is independent of which daemon_pool implementation
lands.

Notes

• Requires requires-python to accept 3.14 (the ceiling raise is handled
  by the separate 3.14-support PRs). The lane installs with --locked
  against the current lockfile; until the ceiling is raised the lane will
  need the lockfile's 3.14 markers (already present in uv.lock).
• test-py314 is intentionally bounded (5 files) to keep CI time in
  check; it can be expanded to the full slice matrix once 3.14 is the
  supported default.

[github-actions]

૮ >ﻌ< ა ci review

_{ran on 4749eb3 — ci: add Python 3.14 test lane exercising the 3.14 compatibil}

❌ Job failures

Python tests / test-py314 · View job

Job Python tests / test-py314 failed.

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⚠️ Action required

CI-sensitive file review · View job

This PR changes CI-sensitive files (eslint config, workflow YAMLs, or composite actions). These influence what the js-autofix job executes and pushes to main.

Sensitive files changed:

• .github/workflows/tests.yml

How to fix:

Add the ci-reviewed label after verifying:

• no new eslint rules with custom fix functions that write outside linted paths,
• no workflow changes that widen permissions or remove guards,
• no composite action changes that alter what gets executed.

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⚠️ Warnings

OSV vulnerability scan · View job

2 known vulnerabilities found in pinned dependencies.

• CVE-2026-70608 in package-lock.json
• CVE-2026-70606 in package-lock.json

How to fix:

Review the findings in the Security tab. Update the affected dependencies if a patched version is available.

---

debug info

CI timings

CI timings · View report · View job

Wall time 7m38s vs 7m50s (-2.6%). 17 job(s) slower, 22 faster, 1 unchanged.

• JS & TS checks / web / check: -36.0s
• Python tests / Run tests slice 12/12: +32.0s
• JS & TS checks / apps/desktop / check:test:ui: +31.0s
• JS & TS checks / apps/shared / check: -27.0s
• Python tests / Run tests slice 11/12: +17.0s

[spfcraze]

Folded into #53 — the 3.14 CI lane belongs with the 3.14 support change it exercises (the lane is untestable without the daemon_pool fix + requires-python raise from #53). PR #53 now includes this lane.