feat(v1.2.0): Final Release - Native Audio, Smart VAD, Auto-Loop & Quality Fixes

- Implemented standard 48kHz audio pipeline to fix sample rate mismatch/distortion
- Added Native System Audio (ScreenCaptureKit) support
- Implemented Smart VAD (Voice Activity Detection) with Auto-Start on valid audio
- Added Auto-Loop: Automatically re-arms recording after stop
- Added Empty Guard: Prevents transcribing silent recordings (< 20s empty)
- Increased Pre-Roll buffer to 3.0s to prevent cut-off speech
- Fixed clipping with clamped audio mixing

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hearbit-ai"
-version = "0.1.2"
+version = "1.2.0"
 description = "A Tauri App"
 authors = ["you"]
 edition = "2021"
@@ -38,3 +38,5 @@ lettre = { version = "0.11", features = ["tokio1", "tokio1-native-tls", "builder
 tauri-plugin-log = "2.0.0"
 tauri-plugin-shell = "2.3.4"
 base64 = "0.22"
+screencapturekit = "0.2.0"
+screencapturekit-sys = "0.2.8"