vvzvlad 80c900eb54 fix(ai): make RAG indexer observable and bound hung embedding calls ...

The bulk embedding reindex could hang on a single page forever
("Indexed 27 of 34 pages") with zero log output:
- all progress logs were debug-level, suppressed in production (pino info);
- embedMany() had no timeout, so a slow/hung embeddings endpoint blocked
  the sequential per-page loop indefinitely.

Changes:
- ai.service.embedTexts: bound embedMany with AbortSignal.timeout
  (configurable via AI_EMBEDDING_TIMEOUT_MS, default 120000ms); on timeout
  throw a clear, greppable message, classified by both signal.aborted and
  the error name (TimeoutError/AbortError/ResponseAborted) so a real
  provider error racing the timer keeps its diagnostics.
- embedding-indexer.reindexWorkspace: promote lifecycle/progress logs to
  info; log "[i/N] indexing page <id>" BEFORE the await so a hang names the
  stuck page; warn on slow pages (>30s); add timing + final summary.
- .env.example: document AI_EMBEDDING_TIMEOUT_MS.

2026-06-18 03:07:02 +03:00

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