Keep PG data in image, add DATABASE_URL, add uv symlink, simplify entrypoint

Dockerfile

@@ -24,21 +24,23 @@ RUN curl -LsSf https://astral.sh/uv/install.sh | sh && \
     . "$HOME/.local/bin/env" && \
     uv --version
 
+RUN ln -sf /root/.local/bin/uv /usr/local/bin/uv
+
 # ── pnpm ──
 RUN npm install -g pnpm
 
 # ── PostgreSQL 16 + pgvector ──
 RUN apk add --no-cache postgresql postgresql-pgvector
 
-# ── Init PostgreSQL with dev user/db/ext, then remove data dir to save ~40MB ──
+# ── Init PostgreSQL with dev user/db/ext, persist data in image ──
 RUN mkdir -p /run/postgresql && chown postgres:postgres /run/postgresql && \
     su - postgres -c "initdb -D /var/lib/postgresql/data" && \
     su - postgres -c "pg_ctl -D /var/lib/postgresql/data start" && \
     su - postgres -c "psql -c \"CREATE USER remynd WITH PASSWORD 'remynd';\"" && \
     su - postgres -c "psql -c \"CREATE DATABASE remynd_dev OWNER remynd;\"" && \
-    su - postgres -c "psql -d remynd_dev -c 'CREATE EXTENSION IF NOT EXISTS vector;'" && \
-    su - postgres -c "pg_ctl -D /var/lib/postgresql/data stop" && \
-    rm -rf /var/lib/postgresql/data
+    su - postgres -c "psql -d remynd_dev -c 'CREATE EXTENSION IF NOT EXISTS vector;'"
+
+ENV DATABASE_URL="postgresql://remynd:remynd@localhost:5432/remynd_dev"
 
 # ── Ensure uv on PATH for all shells ──
 RUN echo '. "$HOME/.local/bin/env"' > /root/.profile