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/domain/events/UserCreatedEvent.ts

@@ -0,0 +1,27 @@
+import { DomainEvent } from "../../../../src/domain/events/DomainEvent"
+
+/**
+ * Domain Event: UserCreatedEvent
+ *
+ * DDD Pattern: Domain Events
+ * - Represents something that happened in the domain
+ * - Immutable
+ * - Past tense naming
+ *
+ * Use cases:
+ * - Send welcome email (async)
+ * - Create user profile
+ * - Log user registration
+ * - Analytics tracking
+ */
+export interface UserCreatedEventPayload {
+    readonly userId: string
+    readonly email: string
+    readonly registeredAt: Date
+}
+
+export class UserCreatedEvent extends DomainEvent<UserCreatedEventPayload> {
+    constructor(payload: UserCreatedEventPayload) {
+        super("user.created", payload)
+    }
+}