What's New in Release v1.2.7

Important Security & Privacy Upgrade:
- Zero-Disk RAM Security Model: Player cookies are processed 100% in RAM memory streams with zero disk persistence.
- Account Protection: Master account session keys (SID, HSID, SSID, APISID, SAPISID) are strictly discarded before transmission.
- Automatic Cleanup: The Companion Server automatically purges legacy cookie files on startup.

New Features & Aesthetic Improvements:
- Direct "Save As..." Workflow: Clicking Download Video or Download Audio directly prompts the native OS file picker window. It remembers your last selected destination folder.
- Chapter Selection Modal: Replaced old sliders/dropdowns with a sleek popup overlay featuring Select All and Deselect All buttons.
- YouTube Player Animations: Center-screen animated badges (A, B, and Loop arrows) appear on the player while trimming videos.