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Revert "feat(knowledgebase): replace litellm-pgvector connector with memory-retrieval"

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This reverts commit abeadc49c8.

Restores vendor/litellm-pgvector/ and the vector_store_registry wiring
(in-band file_search tool-call support) at the user's request, after
re-confirming against docs.litellm.ai/docs/completion/knowledgebase and
litellm-pgvector's own README that pg_vector is still not an in-process
vector_store_registry backend -- it requires this same standalone
connector service either way, so there is no simpler 'native' path that
was missed. Trading back in: 793 lines of vendored code, the untested
Prisma migration, and the git-context build risk noted in VENDORED.md
(all flagged as unverified against real hardware in issue #24), in
exchange for the file_search in-band tool call memory-retrieval did not
support.

Conflicts resolved on top of later commits (Redis, update.sh key-minting
fold-in):
- .env.example / docs/memory-knowledgebase.md: kept the auto-mint-via-
  update.sh language, renamed MEMORY_RETRIEVAL_* back to
  LITELLM_PGVECTOR_*.
- scripts/generate-secrets.sh: left deleted -- its job was folded into
  update.sh in 24d749b, unrelated to this revert.
- scripts/update.sh: renamed the MEMORY_RETRIEVAL_* secret/mint calls to
  LITELLM_PGVECTOR_* to match.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018WHfjWrSEcGhCoeu6dQfDa
This commit is contained in:
haylan
2026-09-02 22:45:08 +02:00
co-authored by Claude-Bot
parent b4dc83949e
commit e7983f0710
21 changed files with 1348 additions and 153 deletions
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.env.example
+5 -5
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@@ -49,13 +49,13 @@ REDIS_PASSWORD=
UI_USERNAME=admin
UI_PASSWORD=
# --- Knowledgebase (pgvector + memory-retrieval, see docs/memory-knowledgebase.md) ---
# --- Knowledgebase (pgvector + litellm-pgvector, see docs/memory-knowledgebase.md) ---
# Random value, filled in automatically by ./scripts/update.sh — leave blank.
PGVECTOR_DB_PASSWORD=
# Auth key memory-retrieval requires on its own API (its SERVER_API_KEY).
# Auth key litellm-pgvector requires on its own API (its SERVER_API_KEY).
# Random value, filled in automatically by ./scripts/update.sh — leave blank.
MEMORY_RETRIEVAL_API_KEY=
# A virtual key memory-retrieval uses to call back into litellm for
LITELLM_PGVECTOR_API_KEY=
# A virtual key litellm-pgvector uses to call back into litellm for
# embeddings. Minted automatically by ./scripts/update.sh — leave blank.
# Manual fallback: docs/proxy-key-onboarding.md.
MEMORY_RETRIEVAL_EMBEDDING_KEY=
LITELLM_PGVECTOR_EMBEDDING_KEY=