v0.2.1 - Project id canonicalization for reliable agent task submission

Summary

Patch release for the worker-first MCP architecture shipped in v0.2.0.

This release fixes project reference canonicalization so agents can reliably use
the projectId returned by codex_list_projects when calling preflight, chat,
workflow, and durable task submission tools.

Fixed

• Cached non-registry projects now return the same canonical path-derived
  projectId across codex_list_projects, codex_preflight_project_run,
  chat tools, workflows, and codex_submit_task.
• Stale cached project ids are retained as aliases, so older local cache records
  do not block agents after catalog refresh.
• Windows catalog regression tests no longer depend on temporary path
  canonicalization after cleanup.

Validation

• python -m pytest -q
• python -m compileall -q openclaw_codex_mcp codex_control_plane_mcp tests scripts
• git diff --check
• python .\scripts\mcp_live_smoke.py --scenario protocol --timeout-seconds 30
• python -m build
• python -m twine check dist/*
• clean virtualenv wheel install and console script smoke