Add TalkType - AI-powered speech-to-text for Linux Wayland

[ronb1964]

TalkType is a privacy-focused speech recognition application for Linux Wayland systems.

Key Features

• Privacy-first: All processing happens locally using OpenAI's Faster-Whisper AI
• Press-and-hold dictation: Default F8 hotkey (configurable)
• Intelligent punctuation: Voice commands like "period", "comma", "new paragraph"
• Auto-punctuation and auto-spacing: Smart text formatting
• CPU and GPU support: Automatic CUDA detection and on-demand library download
• Multiple model sizes: tiny, small, medium, large (1.5GB model for best accuracy)
• System tray integration: Easy access to preferences and settings

Technical Details

• Built for: Ubuntu 22.04+ (glibc 2.35)
• Size: 892MB (optimized, under 1GB)
• License: MIT
• Desktop ID: io.github.ronb1964.TalkType
• AppStream metadata: Included and validated

Testing Verification

• ✅ Tested on Nobara Linux (Fedora-based) with Wayland
• ✅ CPU mode with small model - working
• ✅ GPU mode with large model - working
• ✅ CUDA library auto-download - working
• ✅ All voice commands functional
• ✅ "new paragraph" command - fixed and working perfectly

What's Included

The AppImage is completely self-contained:

• Python 3.11 runtime with full standard library
• PyTorch with CUDA support (CUDA libraries downloaded on-demand)
• faster-whisper AI model (downloaded on first run, multiple sizes available)
• ydotool for Wayland text injection
• GTK3 system tray interface

Download

AppImage: https://github.com/ronb1964/TalkType/releases/download/v0.3.7/TalkType-v0.3.7-x86_64.AppImage

[ronb1964]

Closing this PR to submit a fresh one with the newly built AppImage that has all GTK dependencies properly bundled.