Bugfix and performance improvements

- Bugfix - Performance improvements

- Bugfix - Performance improvements

- Bugfix

New Features Aestu Spatial Focus Engine (iOS with LiDAR) A breakthrough feature for users with ADHD and attention challenges. The Spatial Focus Engine uses your device's LiDAR scanner to perform an objective analysis of your workspace's cognitive load. How it works: - Point your iPhone/iPad at your desk and initiate a quick 6-second scan - The engine calculates an Entropy Score measuring visual clutter and fragmentation - Receive personalized feedback: Optimal (clean workspace), Moderate, or Needs Attention Includes Deep Insight view with detailed metrics: surface occupancy, fragmentation index, and volumetric variations Why it matters for ADHD: - Reduces "time blindness" by providing visual evidence of environmental distractions - Helps combat sensory overload before focus sessions begin - Provides objective data instead of subjective feelings about your workspace Brown Noise Ambient Audio (iOS & macOS) A procedurally-generated Brown Noise audio feature designed to mask distractions and support deep concentration. Features: - Smooth fade-in/out transitions (3 seconds) to avoid jarring audio changes - Auto-start option that automatically enables brown noise when you begin a focus session - Intelligent pause integration: volume automatically reduces during timer pauses - No audio files required: noise is generated in real-time using a random-walk algorithm - Respects system volume and mute switch Why Brown Noise? Brown noise (also called Brownian noise) is a low-frequency, deep sound that many people with ADHD find exceptionally effective for: - Masking environmental distractions - Reducing mental "static" and racing thoughts - Creating a consistent auditory environment that promotes sustained attention Ultradian Rhythm Mode Introducing science-backed Ultradian Rhythm Mode based on the Basic Rest-Activity Cycle (BRAC) research. The Science: The human body operates on ultradian cycles of approximately 90 minutes. After this period, concentration capacity drops dramatically (stress phase). Ignoring these cycles leads to cognitive fatigue and reduced productivity. How it works: - 90-minute focus blocks: Aligned with your natural ultradian rhythm - 20-minute mandatory rest periods: The app enforces restorative breaks - Gentle transitions: Haptic feedback and notifications guide you through each phase - Background persistence: Rest timers continue even when the app is in background Benefits: - Work with your biology, not against it - Prevent burnout through structured recovery - Maintain high-quality focus throughout the day Various Bug Fixes & Improvements