Set LUCEE_EXTENSIONS as Docker ENV for PostgreSQL driver

The .env file approach doesn't work because LUCEE_EXTENSIONS must be
available as a container environment variable at Lucee startup time,
not just in the app's .env file. Setting it as a Dockerfile ENV
ensures the CommandBox entrypoint processes it correctly.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: bpamiri

deploy/swarm/dockerfile

@@ -1,5 +1,8 @@
 FROM ortussolutions/commandbox:lucee6
 
+# Install PostgreSQL JDBC extension for CockroachDB connectivity
+ENV LUCEE_EXTENSIONS="465E1E35-2425-4F4E-8B3FAB638BD7280A;name=H2;version=1.3.172,BEC20D47-3268-1B354-C0E8E70B5CBC15A1;name=PostgreSQL;version=42.7.4"
+
 # Copy full application (ForgeBox dependencies resolved in CI via box install)
 COPY . /app/