🚀 Enhanced Portal Document Uploads

• Presigned URL Implementation: Portal submission documents now upload through secure presigned URLs, improving security and performance

• New Upload Utility: Added upload-portal-submission-document.ts for streamlined document handling

• Improved Full-text Upload: Enhanced full-text document upload flow with better error handling and user feedback

🔧 Code Quality & Validation

• Shared Validation Module: Extracted document validation logic into submission-upload-validation.ts utility

• Size Constants: Centralized MAX_ABSTRACT_DOCUMENT_SIZE_BYTES and MAX_FULL_TEXT_DOCUMENT_SIZE_BYTES constants

• MIME Type Normalization: Improved document type validation and normalization

• Test Coverage: Added comprehensive test suites for payment summaries and export functionality

💳 Payment Exemption System

• Admin Exemption Controls: Admins can now mark submissions as payment-exempt with optional notes through the submission detail page

• Payment State Management: Comprehensive payment summary utilities that compute states from batch status, exemption status, and decision status

• Portal Payment Display: Updated payment pages to clearly show exemption status and appropriate messaging

• Visual Indicators: Added payment state badges and variants in admin submission lists and detail views

🌐 User Experience Improvements

• Portal Login Access: Added "Portal Login" button to subdomain headers for easier access

• Internationalization: Updated English and Turkish translations for all new features

• Responsive Design: Enhanced mobile responsiveness for submission and payment interfaces

📊 Database Schema Updates

• Export Templates: New submissionExportTemplates table with organization relationships

• Payment Fields: Extended submissions schema with exemption tracking capabilities

• Audit Trail: Comprehensive tracking for template creation, updates, and usage

📋 Submission Export Templates

• Template CRUD Operations: Full create, read, update, delete functionality for submission export templates

• Default Templates: Support for organization-level default export templates

• Enhanced Export Options: Comprehensive export configuration with customizable fields and formats