feat: change email and password in settings

src/lib/api.ts

@@ -95,6 +95,33 @@ class ApiClient {
     }
   }
 
+  // Account (email & password changes via Better Auth)
+  async changePassword(currentPassword: string, newPassword: string): Promise<void> {
+    const response = await fetch(`${AUTH_BASE}/api/auth/change-password`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json', ...this.authHeaders() },
+      credentials: 'include',
+      body: JSON.stringify({ currentPassword, newPassword }),
+    });
+    if (!response.ok) {
+      const error = await response.json().catch(() => ({ message: 'Failed to change password' }));
+      throw new Error(error.message || 'Failed to change password');
+    }
+  }
+
+  async changeEmail(newEmail: string): Promise<void> {
+    const response = await fetch(`${AUTH_BASE}/api/auth/change-email`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json', ...this.authHeaders() },
+      credentials: 'include',
+      body: JSON.stringify({ newEmail }),
+    });
+    if (!response.ok) {
+      const error = await response.json().catch(() => ({ message: 'Failed to change email' }));
+      throw new Error(error.message || 'Failed to change email');
+    }
+  }
+
   // Profile
   async getProfile(): Promise<Profile> {
     return this.fetch('/profile');