fix(codex): keep local session timeout non-fatal

[ROOOO]

Summary

• stop treating Codex local session matching timeouts as a fatal launcher failure
• keep the local Codex process running even when transcript/session adoption cannot be established
• surface a warning that remote transcript sync may be unavailable for that launch
• add coverage for the non-fatal warning path alongside existing local launcher mode tests

Testing

• bun x vitest run src/codex/codexLocalLauncher.test.ts
• bun run typecheck

[github-actions]

Findings

• None.

Summary

• Review mode: initial. No issues found in added/modified lines. Residual risk: runtime behavior when the real Codex session scanner times out remains only unit-covered here.

Testing

• Not run (automation)