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/tests/fixtures/code-samples/sample.ts

@@ -0,0 +1,16 @@
+export function add(a: number, b: number): number {
+    return a + b
+}
+
+export const multiply = (a: number, b: number): number => {
+    return a * b
+}
+
+export class Calculator {
+    public divide(a: number, b: number): number {
+        if (b === 0) {
+            throw new Error("Division by zero")
+        }
+        return a / b
+    }
+}