Add NIP-65 relay list display and improve identity UI

- Add NIP-65 relay list service to fetch kind 10002 events from relays
- Replace configurable relay page with read-only NIP-65 relay display
- Update identity page to show display name and username in same badge
- Use reglisse heading font for titles throughout the UI
- Navigate to You page after vault unlock instead of identities list
- Add autofocus to vault password input field
- Add profile metadata service for fetching kind 0 events
- Add readonly mode to relay-rw component

Files modified:
- package.json (version bump to 0.0.6)
- projects/common/src/lib/services/relay-list/relay-list.service.ts (new)
- projects/common/src/lib/services/profile-metadata/profile-metadata.service.ts (new)
- projects/common/src/lib/constants/fallback-relays.ts (new)
- projects/*/src/app/components/home/identity/* (UI improvements)
- projects/*/src/app/components/edit-identity/relays/* (NIP-65 display)
- projects/*/src/app/components/vault-login/* (autofocus, navigation)
- projects/common/src/lib/styles/* (heading fonts)

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

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

projects/firefox/src/plebian-signer-extension.ts

@@ -4,6 +4,20 @@ import { Nip07Method } from '@common';
 
 type Relays = Record<string, { read: boolean; write: boolean }>;
 
+// Fallback UUID generator for contexts where crypto.randomUUID is unavailable
+function generateUUID(): string {
+  if (typeof crypto !== 'undefined' && crypto.randomUUID) {
+    return crypto.randomUUID();
+  }
+  // Fallback using crypto.getRandomValues
+  const bytes = new Uint8Array(16);
+  crypto.getRandomValues(bytes);
+  bytes[6] = (bytes[6] & 0x0f) | 0x40; // Version 4
+  bytes[8] = (bytes[8] & 0x3f) | 0x80; // Variant 10
+  const hex = [...bytes].map(b => b.toString(16).padStart(2, '0')).join('');
+  return `${hex.slice(0, 8)}-${hex.slice(8, 12)}-${hex.slice(12, 16)}-${hex.slice(16, 20)}-${hex.slice(20)}`;
+}
+
 class Messenger {
   #requests = new Map<
     string,
@@ -18,7 +32,7 @@ class Messenger {
   }
 
   async request(method: Nip07Method, params: any): Promise<any> {
-    const id = crypto.randomUUID();
+    const id = generateUUID();
 
     return new Promise((resolve, reject) => {
       this.#requests.set(id, { resolve, reject });