pluggable embed models (factory + dim guard): RAG_SERVER.md

pluggable embed models (factory + dim guard): rag_server.py

pluggable embed models (factory + dim guard): search.py

pluggable embed models (factory + dim guard): embed_models.py

rerank on by default + dead-API latch: search.py

rerank on by default + dead-API latch: rag_server.py

rag_server: server-first Qdrant (QDRANT_URL fast path, embedded fallback) — 50/50 in 25s

scripts cleanup: drop superseded/one-off/stale files (14)

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