Background tasks (ingestion, PDF resolution, scheduler) now acquire an
asyncio.Semaphore before checking out a DB connection, guaranteeing at
least N connections remain available for API request handlers. Removes
duplicate polling loop from PublicationsPage, debounces publication
reload on run-status changes, and increases poll interval from 5s to 15s
since SSE handles live discovery.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Extract _load_unenriched_publications, _enrich_batch, _flush_and_sweep_duplicates from enrich_pending_publications
- Extract _sanitize_titles shared helper for title cleaning
- Extract _run_iteration_and_complete and _inline_enrich_and_finalize from run_for_user
- Extract _run_first_pass and _run_depth_pass from run_scholar_iteration
- Extract _finalize_successful_queue_job and _finalize_failed_queue_job from _finalize_queue_job_after_run
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Rename _int_or_default → int_or_default (public API, was using private convention)
- Extract shared pdf_queue utilities (utcnow, event_row, queued_job, status constants) to pdf_queue_common.py to avoid circular imports
- Consolidate _effective_request_delay_seconds into queue_runner.py with explicit floor parameter
- Update tests to match new function locations and names
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
