feat(graph): two-tier L3 alignment thresholds + reconcile co-mention hint — same-type 0.85, cross-type 0.92

feat(graph): L3 semantic entity alignment via bge embeddings

feat(graph): cross-chunk relation reconciliation — top-K co-occurrence LLM pair check

feat(graph): map-reduce KG extraction — per-chunk two-pass under key-pool concurrency

feat(groq): round-robin key pool + fallthrough on 429/413

fix(graph): drop extraction max_tokens 8192→5120 — Groq free-tier 8K TPM ceiling

feat(graph): entity alignment — normalize + fuzzy alias + relation predicates

fix(graph): entity-dense docs — bump max_tokens 4096→8192, tighten entity description spec

fix(graph): unstarve KG extraction — reasoning_effort=medium + bump tokens + domain-neutral prompt

fix(agents): unstarve gpt-oss extraction — reasoning_effort=low + max_tokens bump

deploy: retrieval v2 + verifier tightening

deploy: strict ASCII citation format

deploy: accept .docx and .pptx uploads

deploy: chat model picker + gpt-oss-120b default

deploy: gpt-oss-120b for extraction

deploy: hybrid retrieval + reranker

fix: 400 on chat_id misuse takes priority over 503

feat: chat history (multi-turn, search, rename, delete)

feat: RAG/web toggles, strict mode, Tavily search, chat settings

feat: video ingest support and error_message column

auth: collect first/last name at registration; nullable columns + migration

drop X-Frame-Options for HF Spaces preview

phase 3: rate limits, lockout, security headers

deploy phase 2 (auth: verification, reset, password rules, blocklist)

initial backend deploy