Phase 1: scaffold local backend — models, schemas, routers, printer service, Docker

.gitignore

@@ -0,0 +1,28 @@
+# Environment
+.env
+*.env
+
+# Database
+*.db
+*.db-shm
+*.db-wal
+
+# License state (runtime file)
+license_state.json
+
+# Python
+__pycache__/
+*.py[cod]
+*.pyo
+.venv/
+venv/
+env/
+
+# Node (for future frontends)
+node_modules/
+dist/
+.next/
+
+# OS
+.DS_Store
+Thumbs.db