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/exported-constants.ts

@@ -0,0 +1,38 @@
+// Test fixture for exported constants detection
+
+// Single-line export const with as const
+export const SINGLE_LINE_OBJECT = { value: 123 } as const
+export const SINGLE_LINE_ARRAY = [1, 2, 3] as const
+export const SINGLE_LINE_NUMBER = 999 as const
+export const SINGLE_LINE_STRING = "test" as const
+
+// Multi-line export const with as const
+export const MULTI_LINE_CONFIG = {
+    timeout: 5000,
+    port: 8080,
+    retries: 3,
+} as const
+
+export const NESTED_CONFIG = {
+    api: {
+        baseUrl: "http://localhost",
+        timeout: 10000,
+    },
+    db: {
+        host: "localhost",
+        port: 5432,
+    },
+} as const
+
+// Array with as const
+export const ALLOWED_PORTS = [3000, 8080, 9000] as const
+
+// Without as const (should still be detected as hardcode)
+export const NOT_CONST = {
+    value: 777,
+}
+
+// Regular variable (not exported) - should detect hardcode
+const localConfig = {
+    timeout: 4000,
+}