Add Docker support for FoodsharingSiegen project

Introduced Docker setup, including `docker-compose.yml`, `dockerfile.server`, and related Python helper scripts (`image-create.py`, `image-push.py`, `publish-project.py`, `publish-aio.py`) for building, managing, and deploying Docker images. Updated `.gitignore` to exclude published files, and renamed a field label in the Blazor component for better clarity.

Docker/publish-project.py

@@ -0,0 +1,38 @@
+import os
+import subprocess
+import sys
+
+def main():
+    # Determine the absolute path of this script's directory
+    script_dir = os.path.dirname(os.path.abspath(__file__))
+    
+    # Compute the path to the FoodsharingSiegen.Server project directory
+    # This assumes the following structure:
+    # files/
+    #   Docker/               <-- this script resides here
+    #   FoodsharingSiegen.Server/
+    project_dir = os.path.normpath(os.path.join(script_dir, '..', 'FoodsharingSiegen.Server'))
+    
+    # Check if the project directory exists
+    if not os.path.isdir(project_dir):
+        print(f"Error: Project directory not found: {project_dir}")
+        sys.exit(1)
+        
+    # Prepare the dotnet publish command
+    command = ["dotnet", "publish", project_dir]
+    print("Running command:", " ".join(command))
+    
+    # Execute the command and capture the output
+    try:
+        result = subprocess.run(command, capture_output=True, text=True, check=True)
+        print(result.stdout)
+        if result.stderr:
+            print("Warnings/Errors:", result.stderr, file=sys.stderr)
+    except subprocess.CalledProcessError as e:
+        print("An error occurred while publishing the dotnet project.")
+        print(e.stdout)
+        print(e.stderr, file=sys.stderr)
+        sys.exit(e.returncode)
+
+if __name__ == '__main__':
+    main()