## Summary
- write app-server SQLite logs at TRACE level when SQLite is enabled
- source app-server `/feedback` log attachments from SQLite for the
requested thread when available
- flush buffered SQLite log writes before `/feedback` queries them so
newly emitted events are not lost behind the async inserter
- include same-process threadless SQLite rows in those `/feedback` logs
so the attachment matches the process-wide feedback buffer more closely
- keep the existing in-memory ring buffer fallback unchanged, including
when the SQLite query returns no rows
## Details
- add a byte-bounded `query_feedback_logs` helper in `codex-state` so
`/feedback` does not fetch all rows before truncating
- scope SQLite feedback logs to the requested thread plus threadless
rows from the same `process_uuid`
- format exported SQLite feedback lines with the log level prefix to
better match the in-memory feedback formatter
- add an explicit `LogDbLayer::flush()` control path and await it in
app-server before querying SQLite for feedback logs
- pass optional SQLite log bytes through `codex-feedback` as the
`codex-logs.log` attachment override
- leave TUI behavior unchanged apart from the updated `upload_feedback`
call signature
- add regression coverage for:
- newest-within-budget ordering
- excluding oversized newest rows
- including same-process threadless rows
- keeping the newest suffix across mixed thread and threadless rows
- matching the feedback formatter shape aside from span prefixes
- falling back to the in-memory snapshot when SQLite returns no logs
- flushing buffered SQLite rows before querying
## Follow-up
- SQLite feedback exports still do not reproduce span prefixes like
`feedback-thread{thread_id=...}:`; there is a `TODO(ccunningham)` in
`codex-rs/state/src/log_db.rs` for that follow-up.
## Testing
- `cd codex-rs && cargo test -p codex-state`
- `cd codex-rs && cargo test -p codex-app-server`
- `cd codex-rs && just fmt`
## Summary
This PR is the first slice of the per-session `/feedback` logging work:
it adds a process-unique identifier to SQLite log rows.
It does **not** change `/feedback` sourcing behavior yet.
## Changes
- Add migration `0009_logs_process_id.sql` to extend `logs` with:
- `process_uuid TEXT`
- `idx_logs_process_uuid` index
- Extend state log models:
- `LogEntry.process_uuid: Option<String>`
- `LogRow.process_uuid: Option<String>`
- Stamp each log row with a stable per-process UUID in the sqlite log
layer:
- generated once per process as `pid:<pid>:<uuid>`
- Update sqlite log insert/query paths to persist and read
`process_uuid`:
- `INSERT INTO logs (..., process_uuid, ...)`
- `SELECT ..., process_uuid, ... FROM logs`
## Why
App-server runs many sessions in one process. This change provides a
process-scoping primitive we need for follow-up `/feedback` work, so
threadless/process-level logs can be associated with the emitting
process without mixing across processes.
## Non-goals in this PR
- No `/feedback` transport/source changes
- No attachment size changes
- No sqlite retention/trim policy changes
## Testing
- `just fmt`
- CI will run the full checks
Charley Cunningham