added generator mode

python_app/generator_sweep/__init__.py

@@ -0,0 +1,31 @@
+"""Standalone LibreVNA signal-generator sweep support."""
+
+__all__ = [
+    "GeneratorSweepConfig",
+    "GeneratorSweepRunner",
+    "HardwarePwmGate",
+    "ResolvedGeneratorSweepConfig",
+    "resolve_generator_sweep_config",
+]
+
+
+def __getattr__(name: str) -> object:
+    """Load generator sweep helpers lazily to avoid heavy hardware imports."""
+    if name in {"GeneratorSweepConfig", "ResolvedGeneratorSweepConfig", "resolve_generator_sweep_config"}:
+        from .config import GeneratorSweepConfig, ResolvedGeneratorSweepConfig, resolve_generator_sweep_config
+
+        exports = {
+            "GeneratorSweepConfig": GeneratorSweepConfig,
+            "ResolvedGeneratorSweepConfig": ResolvedGeneratorSweepConfig,
+            "resolve_generator_sweep_config": resolve_generator_sweep_config,
+        }
+        return exports[name]
+    if name == "HardwarePwmGate":
+        from .pwm import HardwarePwmGate
+
+        return HardwarePwmGate
+    if name == "GeneratorSweepRunner":
+        from .runner import GeneratorSweepRunner
+
+        return GeneratorSweepRunner
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")