Release v1.1.5 - Remove debug and signing logs

- Disable debug() logging function in background scripts
- Remove backgroundLogNip07Action calls for NIP-07 operations
- Remove backgroundLogPermissionStored calls for permission events
- Clean up unused imports and result variables
- Simplify switch statement returns in processNip07Request

Files modified:
- package.json (version bump)
- projects/chrome/src/background-common.ts
- projects/chrome/src/background.ts
- projects/firefox/src/background-common.ts
- projects/firefox/src/background.ts

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

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

package.json

@@ -1,12 +1,12 @@
 {
   "name": "plebeian-signer",
-  "version": "v1.1.4",
+  "version": "v1.1.5",
   "custom": {
     "chrome": {
-      "version": "v1.1.4"
+      "version": "v1.1.5"
     },
     "firefox": {
-      "version": "v1.1.4"
+      "version": "v1.1.5"
     }
   },
   "scripts": {