feat(identity): redesign identity module and introduce RBAC foundation

- Redesign the Identity module with a richer domain model.
- Extend the User entity to support username, Authentik integration, activity tracking, and storage information.
- Add Role and Permission domain models with many-to-many relationships.
- Implement RBAC foundation using UserRole, RolePermission, and UserPermission mappings.
- Add user storage quota and usage fields with default values.
- Introduce Authentik identifiers and synchronization metadata.
- Refactor user domain logic for role and permission management.
- Update Prisma schema to support the new identity architecture.
- Improve JWT authentication and permission guard integration.
- Update repositories, handlers, controllers, mappers, DTOs, and Swagger configuration.
- Refresh environment configuration and project dependencies.

postman/RayLab.postman_collection.json

@@ -0,0 +1,58 @@
+{
+	"info": {
+		"_postman_id": "e1e605cc-a2c6-4410-a7aa-4692b594d42d",
+		"name": "RayLab",
+		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
+		"_exporter_id": "45313893"
+	},
+	"item": [
+		{
+			"name": "User",
+			"item": [
+				{
+					"name": "Create User",
+					"request": {
+						"method": "POST",
+						"header": [
+							{
+								"key": "Content-Type",
+								"value": "application/json",
+								"type": "text"
+							},
+							{
+								"key": "Authorization",
+								"value": "Bearer ",
+								"description": "Bearer <JWT_Token>",
+								"type": "text",
+								"disabled": true
+							}
+						],
+						"body": {
+							"mode": "raw",
+							"raw": "{\r\n  \"username\": \"rayyan\",\r\n  \"email\": \"rayyan@example.com\",\r\n  \"password\": \"Password123!\",\r\n  \"fullName\": \"Rayyan\"\r\n}",
+							"options": {
+								"raw": {
+									"language": "json"
+								}
+							}
+						},
+						"url": {
+							"raw": "http://localhost:3000/api/v1/users",
+							"protocol": "http",
+							"host": [
+								"localhost"
+							],
+							"port": "3000",
+							"path": [
+								"api",
+								"v1",
+								"users"
+							]
+						}
+					},
+					"response": []
+				}
+			]
+		}
+	]
+}