feat: implement ReportsModule with service, controller, and endpoints

Added ReportsModule to manage user reports. Includes service methods for creating, retrieving, and updating report statuses, as well as controller endpoints for handling these operations. Integrated with authentication, role-based access control, and database logic.

backend/src/reports/dto/create-report.dto.ts

@@ -0,0 +1,25 @@
+import { IsEnum, IsOptional, IsString, IsUUID } from "class-validator";
+
+export enum ReportReason {
+	INAPPROPRIATE = "inappropriate",
+	SPAM = "spam",
+	COPYRIGHT = "copyright",
+	OTHER = "other",
+}
+
+export class CreateReportDto {
+	@IsOptional()
+	@IsUUID()
+	contentId?: string;
+
+	@IsOptional()
+	@IsUUID()
+	tagId?: string;
+
+	@IsEnum(ReportReason)
+	reason!: "inappropriate" | "spam" | "copyright" | "other";
+
+	@IsOptional()
+	@IsString()
+	description?: string;
+}

backend/src/reports/dto/update-report-status.dto.ts

@@ -0,0 +1,13 @@
+import { IsEnum } from "class-validator";
+
+export enum ReportStatus {
+	PENDING = "pending",
+	REVIEWED = "reviewed",
+	RESOLVED = "resolved",
+	DISMISSED = "dismissed",
+}
+
+export class UpdateReportStatusDto {
+	@IsEnum(ReportStatus)
+	status!: "pending" | "reviewed" | "resolved" | "dismissed";
+}