Improve Form Submission Reliability Under Network Fluctuations

## Description
Temporary connectivity disruptions can result in ambiguous submission outcomes.

## Proposed Solution
- Add retry-safe mechanisms.
- Improve submission tracking.
- Enhance error recovery.
- Prevent duplicate processing.

## Acceptance Criteria
- Reliable submissions.
- Clear failure handling.
- Reduced duplicate actions.

## Expected Labels
`level3`, `NSoC'26`