Initial commit: Clean Mold Cost Calculator application

- Flask-based mold cost calculation application
- PostgreSQL database with SQLAlchemy ORM
- Docker/Podman containerization
- Comprehensive documentation in docs/
- Clean, organized codebase without obsolete files
- Production-ready deployment configuration
- Enhanced pytest configuration with coverage reporting
- Master/Development branch structure

podman-compose.development.yml

@@ -0,0 +1,48 @@
+# podman-compose.development.yml
+#
+# Defines the services for the isolated Development environment.
+#
+version: '3.8'
+
+services:
+  app_development:
+    container_name: mold_cost_tool_development
+    image: mold_cost_tool_development_image
+    build:
+      context: .
+      dockerfile: Dockerfile
+    env_file:
+      - .env.development
+    ports:
+      - "5001:5000"
+    volumes:
+      - ./instance:/app/instance
+      - ./logs:/app/logs
+      - ./db_data/development:/app/db_data/development
+
+  db_development:
+    container_name: mold_cost_db_development
+    image: docker.io/postgres:13
+    env_file:
+      - .env.development
+    volumes:
+      - ./db_data/development:/var/lib/postgresql/data
+      - ./deploy/db/init:/docker-entrypoint-initdb.d
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $$POSTGRES_USER -d $$POSTGRES_DB"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+    restart: always
+    ports:
+      - "5434:5432" # Exposes on host port 5434 for external access if needed
+    networks:
+      - mold_network_development
+
+volumes:
+  postgres_data_development:
+    name: mold_cost_postgres_data_development
+
+networks:
+  mold_network_development:
+    name: mold_cost_network_development