fix: resolve Parakeet sidecar MLX module loading and build issues

- Fix MLX module collection in PyInstaller spec to include all required submodules
- Add proper collection of mlx._os_warning and other missing modules
- Update build script to use macOS-specific spec file
- Configure sidecar as background process with LSUIElement=1 (untested for focus issue)
- Set console=False in spec file to prevent console window creation
- Fix dashboard auto-open on dev server by setting visible=false in tauri.conf.json

Note: Window focus stealing issue may still exist - needs further testing

Author: moinulmoin

scripts/build-parakeet-sidecar.sh

@@ -15,17 +15,28 @@ uv sync --group build
 # Clean previous artifacts
 rm -rf "$DIST_DIR"
 
-# Build the single-file sidecar binary
-uv run --group build pyinstaller \
-  --clean \
-  --onefile \
-  --name parakeet-sidecar \
-  --hidden-import mlx._reprlib_fix \
-  --collect-submodules mlx \
-  --collect-submodules parakeet_mlx \
-  --collect-data parakeet_mlx \
-  --collect-data mlx \
-  src/parakeet_sidecar/main.py
+# Detect OS and use appropriate spec file
+OS_NAME=$(uname -s)
+if [[ "$OS_NAME" == "Darwin" ]]; then
+  echo "Building for macOS with background process configuration..."
+  # Use macOS-specific spec file to prevent focus stealing
+  uv run --group build pyinstaller \
+    --clean \
+    parakeet-sidecar-macos.spec
+else
+  echo "Building for $OS_NAME..."
+  # Use default PyInstaller configuration for other platforms
+  uv run --group build pyinstaller \
+    --clean \
+    --onefile \
+    --name parakeet-sidecar \
+    --hidden-import mlx._reprlib_fix \
+    --collect-submodules mlx \
+    --collect-submodules parakeet_mlx \
+    --collect-data parakeet_mlx \
+    --collect-data mlx \
+    src/parakeet_sidecar/main.py
+fi
 
 # Create a target-suffixed copy for Tauri bundling
 HOST_TRIPLE=$(rustc -vV | sed -n 's/^host: //p')