Initial commit: bface library, build fixes, and refreshed docs

- Externalize all @tamagui/* and tamagui subpaths so dist no longer vendors Tamagui.
- Emit TypeScript declarations with vite-plugin-dts; fix package exports types for ui/*.
- Align initEnv with profiles: displayName, brandLogo, api.baseURL, themeColor, uiShell.
- Stabilize tests with Node localStorage file; env tests pass.
- Update README and component docs for services, menus, API client, and development.

src/security/model/User.js

@@ -0,0 +1,15 @@
+export class User {
+  constructor(data = {}) {
+    this.id = data.id || null;
+    this.username = data.username || '';
+    this.display_name = data.display_name || data.displayName || '';
+    this.email = data.email || '';
+    this.image_url = data.image_url || '';
+    this.realm_id = data.realm_id || 'local';
+    this.role_ids = Array.isArray(data.role_ids) ? [...data.role_ids] : [];
+    this.status = data.status || 'active';
+    this.password_hash = data.password_hash || '';
+    this.created_on = data.created_on || new Date().toISOString();
+    this.updated_on = data.updated_on || this.created_on;
+  }
+}