new GPR parameters and some UI fixes

python_app/models/gui_profile_schema.py

@@ -57,8 +57,16 @@ class GuiGprStateModel:
     stop_freq_mhz: float = 6000.0
     speed_m_s: float = 0.0
     look_angle_deg: float = 0.0
+    snr_thresh: float = 4.5
+    snr_comp_max: float = 25.0
     background_subtract_enabled: bool = True
     background_mean_count: int = 10
+    render_mode: str = "heatmap"
+    min_visible_pair_count: int = 1
+    visible_x_min_m: float = -2.0
+    visible_x_max_m: float = 2.0
+    visible_z_min_m: float = 0.0
+    visible_z_max_m: float = 14.0
 
 
 @dataclass(slots=True)