Add muddy ground and embankment classes for UAV_VisLoc

Background analysis on crop_0_0/0_1 showed wetland/embankment areas
(dark grey-green, avg RGB 101,103,97) between water bodies not covered
by any existing class. Add:
- "muddy ground and wetland" (ID 14)
- "embankment and levee" (ID 15)

Total: 14 → 16 classes for UAV_VisLoc.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/run_uav_visloc.py

@@ -88,6 +88,8 @@ def main() -> None:
         "bare soil and plowed field",   # 11
         "roof and rooftop",             # 12
         "sports field and playground",  # 13
+        "muddy ground and wetland",     # 14
+        "embankment and levee",         # 15
     ])
     models_conf = ModelsConfig(weights_dir=str(_PROJECT_ROOT / "in" / "weights"))