Gap-closing on top of the merged A3-3..A3-6 work:
- ProjectService.create_preview_domain now refuses a label that is a reserved
platform name (git, mcp, api, panel, ...) via PROTECTED_HOST_LABELS. The rules
set existed but only the owner-facing validate_extra_host consulted it, so the
tenant path could reserve one.
- process.py: signal.SIGKILL is resolved through getattr with a SIGTERM
fallback, so the module imports and type-checks on Windows where SIGKILL does
not exist.
- Three more Windows test repairs: a git-created .git must be unlinked and
recreated rather than overwritten in place; POSIX-only chmod and symlink
assertions are gated on os.name (the security property they assert is checked
everywhere, the platform-specific mechanics only where they apply).
- docs/plan/reports/agent-3-final.md: the integration hand-off — host
requirements, every setting, every endpoint added or changed, the tables, the
open CHANGE REQUESTS, a 12-step manual QA script and the known limitations.
Checks: ruff clean, mypy clean (136 files), 521 API tests pass, 83 web tests
pass, tsc clean, next lint clean.
Agent 3
22374f3e1c