fix: align all range/carrier/velocity values to PLFM hardware + FPGA bug fixes

- Correct carrier from 10.525/10 GHz to 10.5 GHz (verified ADF4382 config)
- Correct range-per-bin from 4.8/5.6/781.25 m to 24.0 m (matched-filter)
- Correct velocity resolution from 1.484 to 2.67 m/s/bin (PRI-based)
- Correct processing rate from 4 MSPS to 100 MSPS (post-DDC)
- Correct max range from 307/5000/50000 m to 1536 m (64 bins x 24 m)
- Add WaveformConfig.pri_s field (167 us PRI for velocity calculation)
- Fix short chirp chirp_complete deadlock (Bug A)
- Remove dead short_chirp ports, rename long_chirp to ref_chirp (Bug B)
- Fix stale latency comment 2159 -> 3187 cycles (Bug C)
- Create radar_params.vh as single source of truth for FPGA parameters
- Lower RadarSettings.cpp map_size validation bound from 1000 to 100
- Add PLFM hardware constants to golden_reference.py
- Update all GUI versions, tests, and cross-layer contracts

All 244 tests passing (167 Python + 21 MCU + 29 cross-layer + 27 FPGA)

9_Firmware/9_3_GUI/GUI_V6.py

@@ -64,7 +64,7 @@ class RadarTarget:
 
 @dataclass
 class RadarSettings:
-    system_frequency: float = 10e9
+    system_frequency: float = 10.5e9
     chirp_duration_1: float = 30e-6  # Long chirp duration
     chirp_duration_2: float = 0.5e-6  # Short chirp duration
     chirps_per_position: int = 32
@@ -72,8 +72,8 @@ class RadarSettings:
     freq_max: float = 30e6
     prf1: float = 1000
     prf2: float = 2000
-    max_distance: float = 50000
-    map_size: float = 50000  # Map size in meters
+    max_distance: float = 1536
+    map_size: float = 1536  # Map size in meters (64 bins x 24 m)
 
 @dataclass
 class GPSData:
@@ -1653,8 +1653,8 @@ class RadarGUI:
             ('Frequency Max (Hz):', 'freq_max', 30e6),
             ('PRF1 (Hz):', 'prf1', 1000),
             ('PRF2 (Hz):', 'prf2', 2000),
-            ('Max Distance (m):', 'max_distance', 50000),
-            ('Map Size (m):', 'map_size', 50000),
+            ('Max Distance (m):', 'max_distance', 1536),
+            ('Map Size (m):', 'map_size', 1536),
             ('Google Maps API Key:', 'google_maps_api_key', 'YOUR_GOOGLE_MAPS_API_KEY')
         ]