teernisse f6d19a9467 feat(sync): Instrument pipeline with tracing spans, run_id correlation, and metrics ...

Add end-to-end observability to the sync and ingest pipelines:

Sync command:
- Generate UUID-based run_id for each sync invocation, propagated through
  all child spans for log correlation across stages
- Accept MetricsLayer reference to extract hierarchical StageTiming data
  after pipeline completion for robot-mode performance output
- Record sync runs in DB via SyncRunRecorder (start/succeed/fail lifecycle)
- Wrap entire sync execution in a root tracing span with run_id field

Ingest command:
- Wrap run_ingest in an instrumented root span with run_id and resource_type
- Add project path prefix to discussion progress bars for multi-project clarity
- Reset resource_events_synced_for_updated_at on --full re-sync

Sync status:
- Expand from single last_run to configurable recent runs list (default 10)
- Parse and expose StageTiming metrics from stored metrics_json
- Add run_id, total_items_processed, total_errors to SyncRunInfo
- Add mr_count to DataSummary for complete entity coverage

Orchestrator:
- Add #[instrument] with structured fields to issue and MR ingestion functions
- Record items_processed, items_skipped, errors on span close for MetricsLayer
- Emit granular progress events (IssuesFetchStarted, IssuesFetchComplete)
- Pass project_id through to drain_resource_events for scoped job claiming

Document regenerator and embedding pipeline:
- Add #[instrument] spans with items_processed, items_skipped, errors fields
- Record final counts on span close for metrics extraction

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-02-04 13:39:00 -05:00

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