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_Demo.py

@@ -45,7 +45,7 @@ class RadarSettings:
     range_bins: int = 1024
     doppler_bins: int = 32
     prf: float = 1000
-    max_range: float = 5000
+    max_range: float = 1536
     max_velocity: float = 100
     cfar_threshold: float = 13.0
 
@@ -577,7 +577,7 @@ class RadarDemoGUI:
             ('Range Bins:', 'range_bins', 1024, 256, 2048),
             ('Doppler Bins:', 'doppler_bins', 32, 8, 128),
             ('PRF (Hz):', 'prf', 1000, 100, 10000),
-            ('Max Range (m):', 'max_range', 5000, 100, 50000),
+            ('Max Range (m):', 'max_range', 1536, 100, 25000),
             ('Max Velocity (m/s):', 'max_vel', 100, 10, 500),
             ('CFAR Threshold (dB):', 'cfar', 13.0, 5.0, 30.0)
         ]