Add stable extension ID for development builds

Inject manifest key via vite plugin for dev/test builds (not production).
This ensures all developers get the same extension ID: pebbngnfojnignonigcnkdilknapkgid

- Update vite.config.mts to inject key when !PRODUCTION
- Update release script to use PRODUCTION=true
- Replace old hardcoded dev extension ID in all files

extension/src/background.ts

@@ -961,7 +961,7 @@ async function resetDebugger(): Promise<void> {
 // Our extension IDs - allow attaching to our own extension pages for debugging
 const OUR_EXTENSION_IDS = [
   'jfeammnjpkecdekppnclgkkffahnhfhe', // Production extension (Chrome Web Store)
-  'elnnakgjclnapgflmidlpobefkdmapdm', // Dev extension (loaded unpacked)
+  'pebbngnfojnignonigcnkdilknapkgid', // Dev extension (stable ID from manifest key)
 ]
 
 // undefined URL is for about:blank pages (not restricted) and chrome:// URLs (restricted).