feat: add logging and caching enhancements across core services

Integrate `Logger` for consistent logging in services like `reports`, `categories`, `users`, `contents`, and more. Introduce caching capabilities with `CacheInterceptor` and manual cache clearing logic for categories, users, and contents. Add request throttling to critical auth endpoints for enhanced rate limiting.

backend/src/users/users.controller.ts

@@ -11,7 +11,9 @@ import {
 	Query,
 	Req,
 	UseGuards,
+	UseInterceptors,
 } from "@nestjs/common";
+import { CacheInterceptor, CacheKey, CacheTTL } from "@nestjs/cache-manager";
 import { AuthService } from "../auth/auth.service";
 import { Roles } from "../auth/decorators/roles.decorator";
 import { AuthGuard } from "../auth/guards/auth.guard";
@@ -41,6 +43,8 @@ export class UsersController {
 
 	// Listing public d'un profil
 	@Get("public/:username")
+	@UseInterceptors(CacheInterceptor)
+	@CacheTTL(60000) // 1 minute
 	findPublicProfile(@Param("username") username: string) {
 		return this.usersService.findPublicProfile(username);
 	}