[US2-2] Edit Personal Information from Profile Management Page #38

User Story

As a user, I want to edit my personal information, so that my account details remain up to date.

Reviewer

@splexmus

Description

The profile management page implemented in #32 currently supports initial (mandatory) profile completion. This issue extends that page to also support editing already-saved personal information after the initial setup, so users can keep their details current over time.

Scope

• Add edit functionality to the existing profile management page from [US2-1] Display Account Profile on My Profile Management Page #32 (same role-aware fields: student vs. tutor).
• Pre-fill the form with the user's current saved information.
• Submit updated values and persist changes to the user's profile.
• Validate edited fields using the same rules as initial profile completion.

Acceptance Criteria

• Given a user opens the profile management page, when the page loads, then their current personal information is pre-filled
• Given the user updates one or more fields, when they save the changes, then the updates are accepted
• Given changes have been saved, when the profile page is loaded again, then the saved changes are reflected
• Given a field is edited, when it is validated, then the same validation rules as initial profile completion apply (per role)
• Given invalid data is submitted, when the user saves, then clear validation errors are shown and no changes are saved

Out of Scope

• Changing email or password (assumed to be handled by separate account/security settings).
• Changing role (student/tutor) after registration.