docs: update main intro page to reflect open source positioning and multi-platform availability
Signed-off-by: Christian Stewart <christian@aperture.us>
Frontend now receives the server port via window.__OPENCODE__.port, allowing it to connect when using a random free port instead of hardcoded 4096
- Tauri app now automatically finds an available port instead of defaulting to 4096 - Icon discovery feature is now enabled by default in the Tauri app - Prevents port conflicts when multiple OpenCode instances are running