v3.0.0-alpha.3

This version introduces a complete "WeTransfer-style" file sharing system, major security hardening, and enhanced cross-platform support
for Windows/WSL environments.

📤 New: WeTransfer-style File Sharing

• External File Transfers: Users can now send files to any email address directly from eXtplorer.
• Upload Dropzone: A dedicated transfer interface with drag-and-drop support and real-time progress tracking.
• Resumable Uploads: Support for resuming interrupted transfers, ensuring reliability for large file sends.
• Expiration Management: Set custom expiration dates for transfers; files are automatically cleaned up after they expire.
• Email Notifications: Integration with SMTP to send download links directly to recipients.
• Transfer History: A new view to manage and track previously sent transfers.

🛡️ Security & Architecture

• Secure Data Storage: Migrated sensitive JSON data (Users, Shares, Logs, Mounts) into PHP-wrapped files (.php) to prevent accidental
  direct exposure via the web server.
• Poor Man's Cron: Implemented an automated background task runner that handles cleanup operations (expired shares, old logs) without requiring a system-level crontab.
• Content Security Policy (CSP): Hardened CSP headers to strictly control script and style execution.

💻 Windows & WSL Integration

• WSL Path Normalization: Automatic detection and conversion of WSL paths (e.g., /mnt/c/...) to native Windows paths (e.g., C:/...)
  when running on Windows hosts (Herd, Valet, etc.).
• Enhanced Mount UI:
  • Custom mounts now feature distinct icons (Hard Drive for local, Cloud for remote).
  • A subtle "Mount" badge in the file list identifies external directories.
  • Clean separation between system folders ("Home", "Shared") and user-added mounts.

🔧 Fixes & Polish

• Fixed a redirect loop during the installation process.