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>

projects/chrome/src/app/components/home/settings/settings.component.ts

@@ -28,7 +28,7 @@ export class SettingsComponent extends NavComponent implements OnInit {
     );
     console.log(vault.length / 1024 + ' KB');
 
-    switch (this.#storage.getGootiMetaHandler().gootiMetaData?.syncFlow) {
+    switch (this.#storage.getSignerMetaHandler().signerMetaData?.syncFlow) {
       case BrowserSyncFlow.NO_SYNC:
         this.syncFlow = 'Off';
         break;
@@ -81,7 +81,7 @@ export class SettingsComponent extends NavComponent implements OnInit {
     const jsonVault = this.#storage.exportVault();
 
     const dateTimeString = DateHelper.dateToISOLikeButLocal(new Date());
-    const fileName = `Gooti Chrome - Vault Export - ${dateTimeString}.json`;
+    const fileName = `Plebian Signer Chrome - Vault Export - ${dateTimeString}.json`;
 
     this.#downloadJson(jsonVault, fileName);
   }