Fix pipe_source.py not bundled in release builds

The packaging scripts only copied .vpy templates but missed pipe_source.py,
which is now required by both pipeline and preview VapourSynth scripts.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: StuartCameronCode

Scripts/package-macos.sh

@@ -213,6 +213,7 @@ chmod +x "$CONTENTS/MacOS/vapourbox-worker"
 # everything in MacOS/ to be signed Mach-O binaries)
 cp "$PROJECT_ROOT/worker/templates/pipeline_template.vpy" "$CONTENTS/Resources/templates/"
 cp "$PROJECT_ROOT/worker/templates/preview_template.vpy" "$CONTENTS/Resources/templates/"
+cp "$PROJECT_ROOT/worker/templates/pipe_source.py" "$CONTENTS/Resources/templates/"
 
 # Copy licenses
 cp -r "$PROJECT_ROOT/licenses/"* "$CONTENTS/Resources/licenses/"

Scripts/package-windows.ps1

@@ -100,6 +100,7 @@ Copy-Item $WorkerExe "$PackageDir\"
 # Copy VapourSynth script templates
 Copy-Item (Join-Path $ProjectRoot "worker\templates\pipeline_template.vpy") "$PackageDir\templates\"
 Copy-Item (Join-Path $ProjectRoot "worker\templates\preview_template.vpy") "$PackageDir\templates\"
+Copy-Item (Join-Path $ProjectRoot "worker\templates\pipe_source.py") "$PackageDir\templates\"
 
 # Copy licenses
 Write-Host "    Copying licenses..."

Scripts/run-debug-macos.sh

@@ -84,9 +84,10 @@ cp -R "$DERIVED_APP" "$DEBUG_APP"
 # Copy worker binary
 cp "$WORKER_DIR/target/debug/vapourbox-worker" "$DEBUG_APP/Contents/MacOS/"
 
-# Copy templates
+# Copy templates (includes pipe_source.py used by VapourSynth scripts)
 mkdir -p "$DEBUG_APP/Contents/MacOS/templates"
 cp "$WORKER_DIR/templates/"*.vpy "$DEBUG_APP/Contents/MacOS/templates/"
+cp "$WORKER_DIR/templates/pipe_source.py" "$DEBUG_APP/Contents/MacOS/templates/"
 
 # Remove quarantine from deps if present
 if xattr "$PROJECT_ROOT/deps/macos-arm64/ffmpeg/ffmpeg" 2>/dev/null | grep -q quarantine; then