## What changed
- Record imported resources through `extension_resource_files`, retain their source frontmatter, and avoid synthesizing rollout metadata.
- Keep project-specific knowledge in scoped memory and limit `memory_summary.md` to compact routing entries, placing undated imports under older topics.
- Treat only resource directories with a regular `scope.json` file as managed projects, ignoring unrelated metadata entries while continuing to support hidden project keys.
## Testing
- Add coverage for identifying managed projects by their `scope.json` marker.
GitOrigin-RevId: 504dbca7ecb98e7025c33cbea18ef005b1a1a33c
## What changed
- Move migration detection, import orchestration, models, and reporting from
`codex-app-server` into `codex-external-agent-migration`.
- Keep app-server protocol conversion in a dedicated boundary module.
- Organize source-specific configuration, sessions, hooks, plugins, commands,
subagents, and memory handling behind shared migration adapters.
- Relocate and split the migration tests alongside the extracted service.
GitOrigin-RevId: 3378ec2064806a28136d6ac98664ca1d75414a4e
charlesgong-openai