v2.0.0: Complete rewrite - Manifest V3, enterprise-grade secret detection

- Migrated to Chrome Manifest V3 with service worker architecture
- 80+ secret detection patterns covering AWS, GCP, Azure, GitHub, GitLab,
  Stripe, Slack, Discord, OpenAI, and 30+ other providers
- 10 scanning surfaces: inline scripts, external scripts, meta tags,
  hidden inputs, data attributes, HTML comments, URL params, web storage,
  cookies, and network response interception
- Shannon entropy analysis for detecting undocumented secret formats
- MAIN world interceptor for XHR/fetch response scanning and window globals
- Professional dark-theme UI with filtering, search, and CSV/JSON export
- Zero dependencies - removed jQuery, Bootstrap, font-awesome, popper
- Proper XSS-safe DOM rendering throughout
- Badge counter on extension icon showing finding count
- All frames scanning including iframes

.gitignore

@@ -0,0 +1,10 @@
+.DS_Store
+*.crx
+*.pem
+*.zip
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+.claude/