chore(tracker): sync Step 1.8 → ✅ and log PRs #67, #68; advance to 1.10

[officialCodeWork]

Summary

Tracker housekeeping after PR #68 (Step 1.8 — Embedder pipeline) merged.

• Flip Step 1.8 row from ⏳ to ✅ with full deliverable summary (rag-embedders package, 3 plugins / 4 model families, shared BatchingEmbedder + RetryPolicy, dim normalization, ragctl embed).
• Phase 1 progress 13/16 → 14/16 done (2 remaining); Total 26/84 → 27/84.
• Advance Next-action to Step 1.9 (CDC connectors) — incremental sync from Postgres CDC + S3 event notifications + webhook receiver + Document fingerprint dedup. Step 1.10 (full ingest API + CLI demo) follows after.
• Add PRs chore(tracker): sync Step 1.7 → ✅ and log PRs #65, #66 #67 (Step 1.7 tracker sync) and feat(embedders): embedder pipeline — OpenAI / Cohere / BGE / E5 (Step 1.8) #68 (Step 1.8) to the PR & Branch History table.

Same pattern as PRs #49, #53, #58, #61, #63, #65, #67.

Documentation

• TRACKER.md — updated as described above.

Test plan

• No code touched; lint/test status is identical to `main`.

🤖 Generated with Claude Code