feat(guardian): add guardian package - code quality analyzer

Add @puaros/guardian package v0.1.0 - code quality guardian for vibe coders and enterprise teams.

Features:
- Hardcode detection (magic numbers, magic strings)
- Circular dependency detection
- Naming convention enforcement (Clean Architecture)
- Architecture violation detection
- CLI tool with comprehensive reporting
- 159 tests with 80%+ coverage
- Smart suggestions for fixes
- Built for AI-assisted development

Built with Clean Architecture and DDD principles.
Works with Claude, GPT, Copilot, Cursor, and any AI coding assistant.

packages/guardian/examples/good-architecture/application/dtos/UserResponseDto.ts

@@ -0,0 +1,33 @@
+/**
+ * User Response DTO
+ *
+ * DDD Pattern: Data Transfer Object
+ * - No business logic
+ * - Presentation layer data structure
+ * - Protects domain from external changes
+ *
+ * SOLID Principles:
+ * - SRP: only data transfer
+ * - ISP: client-specific interface
+ *
+ * Clean Architecture:
+ * - Application layer DTO
+ * - Maps to/from domain
+ * - API contracts
+ *
+ * Benefits:
+ * - Domain entity isolation
+ * - API versioning
+ * - Client-specific data
+ */
+export interface UserResponseDto {
+    readonly id: string
+    readonly email: string
+    readonly firstName: string
+    readonly lastName: string
+    readonly fullName: string
+    readonly isActive: boolean
+    readonly isBlocked: boolean
+    readonly registeredAt: string
+    readonly lastLoginAt?: string
+}