Add server-side file size validation to OCR agent to prevent DoS

[nimishlohia]

🚀 Fix: Server-Side File Size Validation for OCR Upload

Problem

The OCR agent did not enforce a server-side file size limit. This could allow large file uploads, leading to excessive memory usage and potential Denial of Service (DoS).

Solution

• Added a file size validation check (10MB limit) in Agents/OCR_Multilingual_Translation_Agent/app.py
• Prevents processing of large files before OCR pipeline execution
• Displays an error message if file exceeds limit

Impact

• Improves application stability
• Prevents resource exhaustion
• Enhances security

Testing

• ✅ Small files (<10MB) are processed successfully
• ❌ Large files (>10MB) are rejected with an error message

Closes #1