Add production Docker setup and update backend/frontend configs

Introduces .dockerignore, production Dockerfile and nginx config for frontend, and refactors docker-compose.yml for multi-service deployment. Updates backend and frontend code to support public API tagging, improves refund handling, adds test email endpoint, and migrates Orval config to TypeScript. Removes unused frontend Dockerfile and updates dependencies for React Query and Orval.

backend/account/views.py

@@ -38,7 +38,7 @@ from rest_framework_simplejwt.views import TokenObtainPairView
 
 # Custom Token obtaining view
 @extend_schema(
-    tags=["Authentication"],
+    tags=["Authentication", "public"],
     summary="Obtain JWT access and refresh tokens (cookie-based)",
     description="Authenticate user and obtain JWT access and refresh tokens. You can use either email or username.",
     request=CustomTokenObtainPairSerializer,
@@ -107,7 +107,7 @@ class CookieTokenObtainPairView(TokenObtainPairView):
         return super().validate(attrs)
     
 @extend_schema(
-    tags=["Authentication"],
+    tags=["Authentication", "public"],
     summary="Refresh JWT token using cookie",
     description="Refresh JWT access and refresh tokens using the refresh token stored in cookie.",
     responses={
@@ -163,7 +163,7 @@ class CookieTokenRefreshView(APIView):
 #---------------------------------------------LOGOUT------------------------------------------------
 
 @extend_schema(
-    tags=["Authentication"],
+    tags=["Authentication", "public"],
     summary="Logout user (delete access and refresh token cookies)",
     description="Logs out the user by deleting access and refresh token cookies.",
     responses={
@@ -186,6 +186,7 @@ class LogoutView(APIView):
 
 @extend_schema(
     tags=["User"],
+    get=extend_schema(tags=["public"]),
     summary="List, retrieve, update, and delete users.",
     description="Displays all users with filtering and ordering options. Requires authentication and appropriate role.",
     responses={