Add initial project configuration and setup for Reference Board Viewer application. Include EditorConfig for consistent coding styles, pre-commit hooks for linting and formatting, Docker Compose for local development with PostgreSQL and MinIO, and a Nix flake for development environment management. Establish CI/CD pipeline for automated testing and deployment.

shell.nix

@@ -5,15 +5,67 @@
 pkgs.mkShell {
   packages =
     [
+      # Python with development packages
       (pkgs.python3.withPackages (
         ps:
         builtins.attrValues {
-          inherit (ps) setuptools;
+          inherit (ps)
+            setuptools
+            pip
+            # Core backend dependencies
+            fastapi
+            uvicorn
+            sqlalchemy
+            alembic
+            pydantic
+            # Auth & Security
+            python-jose
+            passlib
+            # Image processing
+            pillow
+            # Storage
+            boto3
+            # HTTP & uploads
+            httpx
+            python-multipart
+            # Testing
+            pytest
+            pytest-cov
+            pytest-asyncio
+            ;
         }
       ))
     ]
     ++ builtins.attrValues {
-      inherit (pkgs) uv;
-    };  
+      inherit (pkgs)
+        # Python tools
+        uv
+        ruff
+        # Database
+        postgresql
+        # Frontend
+        nodejs
+        # Image processing
+        imagemagick
+        # Version control
+        git
+        # Development tools
+        direnv
+        ;
+    };
+  
   buildInputs = [ ];
+  
+  shellHook = ''
+    echo "🚀 Reference Board Viewer Development Environment"
+    echo "   Python: $(python --version)"
+    echo "   Node.js: $(node --version)"
+    echo "   PostgreSQL: $(psql --version | head -n1)"
+    echo ""
+    echo "📚 Quick Commands:"
+    echo "   Backend:  cd backend && uvicorn app.main:app --reload"
+    echo "   Frontend: cd frontend && npm run dev"
+    echo "   Tests:    cd backend && pytest --cov"
+    echo ""
+  '';
 }