feat(shared): reorder AppError constructor to (message, code, status), add singleton logger, retry and TTL cache utilities

services/backend/src/shared/errors/index.ts

@@ -1,65 +0,0 @@
-export class AppError extends Error {
-  constructor(
-    message: string,
-    public code: string,
-    public statusCode: number = 500,
-  ) {
-    super(message);
-    this.name = "AppError";
-  }
-}
-
-export class ValidationError extends AppError {
-  constructor(
-    message: string,
-    public details?: Record<string, unknown>,
-  ) {
-    super(message, "VALIDATION_ERROR", 400);
-    this.name = "ValidationError";
-  }
-}
-
-export class NotFoundError extends AppError {
-  constructor(message: string) {
-    super(message, "NOT_FOUND", 404);
-    this.name = "NotFoundError";
-  }
-}
-
-export class UnauthorizedError extends AppError {
-  constructor(message: string = "Unauthorized") {
-    super(message, "UNAUTHORIZED", 401);
-    this.name = "UnauthorizedError";
-  }
-}
-
-export class ForbiddenError extends AppError {
-  constructor(message: string = "Forbidden") {
-    super(message, "FORBIDDEN", 403);
-    this.name = "ForbiddenError";
-  }
-}
-
-export class ConflictError extends AppError {
-  constructor(message: string) {
-    super(message, "CONFLICT", 409);
-    this.name = "ConflictError";
-  }
-}
-
-export class DatabaseError extends AppError {
-  constructor(
-    message: string,
-    public originalError?: Error,
-  ) {
-    super(message, "DATABASE_ERROR", 500);
-    this.name = "DatabaseError";
-  }
-}
-
-export class ConfigError extends AppError {
-  constructor(message: string) {
-    super(message, "CONFIG_ERROR", 500);
-    this.name = "ConfigError";
-  }
-}