docs: record the Llama 3.3 retirement and the Groq model chain

data: ship the sidecar with Aug-Sep 2026 papers and refreshed citations (7585841)

docs(phase7): record the executed ingest and the refresh procedure

docs: log the 2026-09-30 multi-interest and starter-feed decisions

docs: record the 2026-09-28 deployment and its live checks

docs: rewrite the README around what works today

docs: mark phase plans and handoffs as historical records

docs(research): log the fresh-discovery and shadow-source decisions

docs: add the discovery improvement plan and its validation records

docs: add the current technical contract

docs: protocol for evaluating emerging-topic discovery

feat(discovery): CLI for collection, baseline capture and comparison

docs: remove raw model training transcripts

docs: remove obsolete development transcript

refactor: move the live benchmark under scripts

docs(backfill): measured estimate, and the sidecar caveat that reframes it

fix(arxiv): old-style ids were collapsing onto their category

feat(ops): make swallowed exceptions diagnosable, and size the abstract repair

feat(paper): put comprehension on the page that was built for it

feat(events): log the click-through, and stop discarding rank 0

feat(paper): give a paper a home on this site

fix(ui): a phone had no way to change theme

fix(profiles): the long-term profile was one paper, and most updates were lost

fix(recommend): make the multi-interest feed actually multi-interest

docs: record the cold-start churn design and the trending recency bug

docs: record the RRF decision and the shard gap instead of re-deciding them

docs: correct the Space metadata and the drift between the docs and production

docs: exact search and recommendation pipeline specification

docs: Phase 7 plan — data freshness and free-tier capacity

feat: Cross-encoder search reranking with MiniLM-L-6

Phase 6.5: Pipeline telemetry, search UX fixes, latency profiling

Phase 6.5: Documentation finalization

Phase 6.5 Day 1: Real Qdrant cosine scores (A1) + verification timestamp (A2)

Phase 6.3: Bug B fix + documentation finalization

Phase 6.1+6.2+6.3: Wire all 37 features into caller + health endpoint

Phase 6: LightGBM reranker integration (37-feature schema, 141-tree model)

Phase 5: Cold-Start Onboarding + UI Redesign

Phase 4 complete + Phase 4.5 instrumentation foundation

docs: Update tracker - Phase 3.5 fully complete, all integration done

docs: Add Phase 3.5 Turso ArXiv Metadata DB, update infra status

Phase 3 complete: Hybrid Semantic Search pipeline