Cleanroom Relauncher

Added

• Download hash validation for Cleanroom packs and libraries
• Configuration options to clear the relauncher cache folder and provisioned Java folder
• Option to disable querying GitHub for release updates

Fixed

• Incompatibility with new file names
• Update notification behavior to avoid redundant prompts
• Redundant release/config save calls during relaunch setup
• Temurin vendor matching/internal naming

Changed

• Reworked Java provisioning to use JavaUtils's provisioning APIs
• Improved cache deletion by walking files safely before removal
• Added network timeouts and request headers when querying GitHub releases