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/bad-architecture/naming/user.ts

@@ -0,0 +1,29 @@
+/**
+ * BAD EXAMPLE: Naming Convention Violations
+ *
+ * Guardian should detect:
+ * ❌ File name: user.ts (should be PascalCase: User.ts)
+ * ❌ Location: application layer use case should start with verb
+ *
+ * Why bad:
+ * - Inconsistent naming
+ * - Hard to find files
+ * - Not following Clean Architecture conventions
+ */
+
+export class user {
+    constructor(
+        public id: string,
+        public email: string,
+    ) {}
+}
+
+/**
+ * ✅ GOOD VERSION:
+ *
+ * // domain/entities/User.ts - PascalCase entity
+ * export class User { ... }
+ *
+ * // application/use-cases/CreateUser.ts - Verb+Noun
+ * export class CreateUser { ... }
+ */