Rename hanzoai/postgres refs to hanzoai/sql

Align OCI source label and LLM.md repo URL with the
canonical hanzoai/sql image name.

Author: hanzo-dev

Dockerfile

@@ -6,7 +6,7 @@ ARG PG_VERSION=pg16
 FROM pgvector/pgvector:${PG_VERSION}
 
 LABEL maintainer="dev@hanzo.ai"
-LABEL org.opencontainers.image.source="https://github.com/hanzoai/postgres"
+LABEL org.opencontainers.image.source="https://github.com/hanzoai/sql"
 LABEL org.opencontainers.image.description="Hanzo SQL - PostgreSQL with pgvector and Hanzo defaults"
 
 # Copy initialization scripts

hanzo/LLM.md

@@ -9,7 +9,7 @@
 - **Multi-tenant Support** - Organization-scoped schemas
 - **High Availability** - Streaming replication ready
 
-Repository: https://github.com/hanzoai/postgres
+Repository: https://github.com/hanzoai/sql
 
 ## Quick Start