Severity: Medium

1. Risks unintended changes if the user uploads a picture by mistake.
2. Violates standard UX practices for critical user data (e.g., profile pictures).

Describe the bug
When a user uploads a new profile picture on the Account Settings page, the app automatically saves the change without requiring user confirmation. This violates standard UX practices and risks unintended data changes.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://app.aixblock.io/user/account.
2. Upload a new profile picture.
3. Observe that the image is immediately saved without a "Save" button or confirmation.

Expected behavior
The user should manually confirm the change (e.g., by clicking a "Save" button).

Screenshots

Desktop (please complete the following information):
OS: Windows 11
Browser Chrome
Version v139.0.7258.139

Additional context
UX Impact: Users may accidentally overwrite their profile picture, leading to frustration or confusion