Rename project from Gooti to Plebian Signer and add Claude Code config

- Rename all gooti-* files to plebian-signer-* across Chrome and Firefox
- Rename GootiMetaHandler to SignerMetaHandler in common library
- Update all references to use new naming convention
- Add CLAUDE.md with project build/architecture documentation
- Add Claude Code release command tailored for this npm/Angular project
- Add NWC-IMPLEMENTATION.md design document
- Add Claude skills for nostr, typescript, react, svelte, and applesauce libs
- Update README and various component templates with new branding

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

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

angular.json

@@ -3,7 +3,10 @@
   "version": 1,
   "newProjectRoot": "projects",
   "cli": {
-    "schematicCollections": ["angular-eslint"]
+    "schematicCollections": [
+      "angular-eslint"
+    ],
+    "analytics": false
   },
   "projects": {
     "chrome": {