Release v1.0.10 - Add unlock popup for locked vault

- Add unlock popup window that appears when vault is locked and a NIP-07
  request is made (similar to permission prompt popup)
- Implement standalone vault unlock logic in background script using
  Argon2id key derivation and AES-GCM decryption
- Queue pending NIP-07 requests while waiting for unlock, process after
  success
- Add unlock.html and unlock.ts for both Chrome and Firefox extensions

Files modified:
- package.json (version bump to v1.0.10)
- projects/chrome/public/unlock.html (new)
- projects/chrome/src/unlock.ts (new)
- projects/chrome/src/background.ts
- projects/chrome/src/background-common.ts
- projects/chrome/custom-webpack.config.ts
- projects/chrome/tsconfig.app.json
- projects/firefox/public/unlock.html (new)
- projects/firefox/src/unlock.ts (new)
- projects/firefox/src/background.ts
- projects/firefox/src/background-common.ts
- projects/firefox/custom-webpack.config.ts
- projects/firefox/tsconfig.app.json

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

projects/chrome/public/manifest.json

@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "Plebeian Signer - Nostr Identity Manager & Signer",
   "description": "Manage and switch between multiple identities while interacting with Nostr apps",
-  "version": "1.0.9",
+  "version": "1.0.10",
   "homepage_url": "https://github.com/PlebeianApp/plebeian-signer",
   "options_page": "options.html",
   "permissions": [