## Why
Cursor stores projectless chats under the reserved `empty-window` project, and
their transcripts may not contain embedded working-directory metadata.
## What changed
- Resolve `empty-window` sessions to the parent of the Cursor home directory,
including when that home is configured as a relative path.
- Record each created or appended session's working directory in its import
success result instead of inheriting the migration item's directory.
## Testing
- Cover projectless Cursor transcripts without embedded metadata.
- Cover working-directory resolution from a relative Cursor home.
GitOrigin-RevId: 21cc7ea6acab1ed80cc4016a881e07eca3d0abbd
## What changed
- Add session connector detection to `ExternalAgentConfigService` for Claude and Cursor migrations.
- Resolve Claude connector attributions through session manifests and map Cursor `CallMcpTool` server IDs through cached plugin metadata.
- Return deduplicated connector candidates with their session counts and detection sources, and expose the new result types from the migration crate.
## Testing
- Cover Claude connector resolution by server name and UUID.
- Cover Cursor connector detection and per-session counting from MCP tool calls.
GitOrigin-RevId: 772bfe949bdc734b385a6e06f6a4b1d35b4cf210
## What changed
- Preserve the original title when importing an external-agent session and return it with successful session entries from `externalAgentConfig/import/readHistories`.
- Add dedicated history-record success types so externally completed imports can optionally supply a session title without changing the live import result type.
## Testing
- Verify imported session titles are returned by the app server and persisted when session import ledger entries are created or refreshed.
GitOrigin-RevId: e896688a5763c238f1e1dc8b4672a7aa7bc1ed4c
## What changed
- Add `maxSessionAgeDays` and `maxSessions` to the external-agent config detection request.
- Apply the requested limits when discovering sessions from supported migration sources.
- Preserve the existing defaults of a 30-day maximum age and 50 sessions when either option is omitted.
GitOrigin-RevId: 46376e94b64f1f61d8776e34d82cdd2cdeb36ca0
## 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