update with latest build versions, includes custom build for postgres and migrating from v16 to v18

build/piefed/piefed-worker/.dockerignore

@@ -0,0 +1,29 @@
+# Git
+.git
+.gitignore
+
+# Documentation
+*.md
+README*
+
+# Python cache
+__pycache__
+*.pyc
+*.pyo
+*.pyd
+.pytest_cache
+.coverage
+htmlcov/
+
+# Environment files
+.env*
+*.env
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# Build artifacts
+*.log

build/piefed/piefed-worker/Dockerfile

@@ -1,8 +1,5 @@
 FROM piefed-base AS piefed-worker
 
-# Install additional packages needed for worker container
-RUN apk add --no-cache redis
-
 # Worker-specific Python configuration for background processing
 RUN echo "import sys" > /app/worker_config.py && \
     echo "sys.path.append('/app')" >> /app/worker_config.py