langchain-0001: MultiVectorRetriever._get_relevant_documents() dedup
IDs from vectorstore sub_docs uses list.contains() inside loop, O(k^2).
k is unbounded in production RAG pipelines (configurable via search_kwargs).
Fix: track seen IDs in a set, keep list for order. 499.5x at k=1000.
forgejo-0002: LoadRepoConfig() license sort O(P*L) where L=776 licenses.
Two SliceContainsString calls in back-to-back loops iterate full license
list for each preferred license and vice versa. Fix: build lookup sets
before loops. 19.5x at P=20 preferred licenses.
forgejo-0003: synchronizePublicKeys() three O(N*M) scans per LDAP sync.
Dedup of providedKeys is O(K^2), plus two O(P*G) set-difference loops.
Runs per user per sync cycle. Fix: use maps for O(1) membership. 178.6x
at K=G=500.
forgejo-0001 (search.go RepoIDs) already patched in prior scan.
MOADs 0002-0005 CLEAN for both targets.
