Vivid AFK Camera

Changelog for Version 1.3.17:

[High-End Performance & Input Fixes]

• Fixed Win+L / Alt-Tab stuttering: Optimized input loop by polling glfwGetKey every 2nd tick instead of 348x every single tick. Mouse checks remain instant, ensuring no input is lost while stopping background tick spikes.
• Fixed 20-Second Mode Freeze: Corrected a logical order bug where motionStartMs failed to reset after the 20s timeout, causing the HUD to get stuck at the cycle's edge.

[Visual Glidings & Animations]

• Upgraded HUD Interpolation: Replaced system millisecond calculations with a render-interpolated offset using DeltaTracker and exponential Lerp (exp(-18 * dt)) for flawless framerate smoothness.
• Implemented Smootherstep (Ken Perlin's 5th-order equation) to nullify the second derivative at endpoints, eliminating any visible friction or jerking when the HUD starts and stops.
• Fixed Mod Menu Icon: Resolved a compile and build cache issue. The golden camera icon now loads properly under assets/vivid/icon.png.

[GUI & UX Alignment]

• Redesigned Settings Screen: All controls are now perfectly centered (screenWidth / 2 - 150) across all window sizes and GUI scales, keeping category labels in a clean layout.
• Updated Mod Description: Standardized international project appearance inside Mod Menu ("Vivid - An automatic camera for AFK moments, starting smooth cinematic fly-arounds.").