Feat: Add “Forgot Password” Functionality

### Description
The login system does not provide a way for users to recover their password.

### Goal
Allow users to reset their password securely.

### Proposed Solution

- Add a “Forgot Password” link on login page
- Implement password reset flow:
- Enter username/email
- Send reset link or verification code
- Allow user to create a new password

### Expected Result
Users can recover access to their accounts without admin intervention.

Note:

> Ensure password reset is secure (token-based, expiration, validation).