feat: Add comprehensive documentation suite and reorganize project structure

- Created complete documentation in docs/ directory
- Added PROJECT_OVERVIEW.md with feature highlights and getting started guide
- Added ARCHITECTURE.md with system design and technical details
- Added SECURITY.md with comprehensive security implementation guide
- Added DEVELOPMENT.md with development workflows and best practices
- Added DEPLOYMENT.md with production deployment instructions
- Added API.md with complete REST API documentation
- Added CONTRIBUTING.md with contribution guidelines
- Added CHANGELOG.md with version history and migration notes
- Reorganized all documentation files into docs/ directory for better organization
- Updated README.md with proper documentation links and quick navigation
- Enhanced project structure with professional documentation standards

COMPLIANCE.md

@@ -0,0 +1,22 @@
+Privacy, Data Export/Delete, and Admin Audit
+
+This document outlines how to implement user privacy controls and admin auditing in EasyStream.
+
+User Data Export
+- Endpoint: `api/privacy.php?action=export` (requires login)
+- Returns a JSON bundle of key user data (profile, uploads, subscriptions). The current implementation returns a stub template; extend to include all relevant fields.
+
+User Data Delete (Account Deletion)
+- Endpoint: `api/privacy.php?action=delete` (requires login and CSRF token)
+- Performs a soft-delete or anonymization pass across user-owned content and PII. The current implementation is a stub returning 202; extend with real logic gated by configuration and admin review.
+
+Admin Audit Logs
+- Enable database logging in `f_core/config.logging.php` via `logging_database_logging`.
+- The logger writes to `db_logs` with request id, user id, IP, and optional context.
+- Use `f_modules/m_backend/log_viewer.php` to browse logs; it supports search and time filtering.
+
+Security Considerations
+- Require authentication and CSRF validation for destructive actions.
+- Enforce rate limiting via `VSecurity::checkRateLimit`.
+- Consider adding a review workflow for delete requests.
+