some webUI fixes

python_app/storage/npz/paths.py

@@ -33,6 +33,43 @@ def radar_key_from_config(
     )
 
 
+def radar_config_filename_prefix(
+    model_name: str,
+    sweep_start_hz: float,
+    sweep_stop_hz: float,
+    sweep_points: int,
+    power_dbm: float,
+) -> str:
+    """Build a readable, filesystem-safe prefix describing the radar acquisition setup.
+
+    Encodes the radar model, sweep frequency span, point count, and power so a saved
+    dataset's name carries the configuration it was captured with. ADC-mode radars have
+    no fixed sweep, so the point count is reported as ``adc``.
+    """
+    points_token = "adc" if model_name.strip().lower() == "kamil_adc" else f"{int(sweep_points)}pts"
+    tokens = (
+        model_name,
+        _format_frequency_span(sweep_start_hz, sweep_stop_hz),
+        points_token,
+        f"{power_dbm:g}dBm",
+    )
+    return sanitize_path_component("_".join(tokens))
+
+
+def _format_frequency_span(start_hz: float, stop_hz: float) -> str:
+    """Format a frequency span compactly, both bounds sharing the larger bound's unit."""
+    unit, scale = _frequency_unit(max(start_hz, stop_hz))
+    return f"{start_hz / scale:g}-{stop_hz / scale:g}{unit}"
+
+
+def _frequency_unit(hz: float) -> tuple[str, float]:
+    """Pick the largest unit (GHz/MHz/kHz/Hz) that keeps the magnitude at or above one."""
+    for unit, scale in (("GHz", 1e9), ("MHz", 1e6), ("kHz", 1e3)):
+        if hz >= scale:
+            return unit, scale
+    return "Hz", 1.0
+
+
 def collection_dir_name(index: int, collection_id: int, monotonic_ns: int) -> str:
     """Build canonical collection directory name for snapshot stages."""
     return f"{index:04d}_id{int(collection_id)}_ns{int(monotonic_ns)}"