feat: scale_penalty - score riflette dimensione oltre a forma

Shape matching e invariante scala per design: 3 ruote dentate di dim
diverse avevano tutte score 1.00 confondendo l operatore.

Parametro scale_penalty [0..1]: score_final = score * max(0, 1 - penalty * |scale - 1|)
UI dropdown 'Peso dimensione nel score' con preset 0 / 0.3 / 0.5 / 0.8.

Test rings con penalty 0.5: 1.00 -> 1.00, 0.95 -> 0.97, 0.80 -> 0.90.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

pm2d/web/server.py

@@ -264,6 +264,7 @@ class SimpleMatchParams(BaseModel):
     scala: str = "fissa"              # chiave SCALE_PRESETS
     precisione: str = "normale"       # chiave PRECISION_ANGLE_STEP
     filtro_fp: str = "medio"          # chiave FILTRO_FP_MAP
+    penalita_scala: float = 0.0       # 0 = score shape invariante, >0 = penalizza scala != 1
     min_score: float = 0.65
     max_matches: int = 25
 
@@ -316,6 +317,7 @@ def _simple_to_technical(
         "max_matches": p.max_matches,
         "nms_radius": 0,
         "verify_threshold": FILTRO_FP_MAP.get(p.filtro_fp, 0.35),
+        "scale_penalty": p.penalita_scala,
     }
 
 
@@ -502,6 +504,7 @@ def match_simple(p: SimpleMatchParams):
     matches = m.find(
         scene, min_score=tech["min_score"], max_matches=tech["max_matches"],
         nms_radius=nms, verify_threshold=tech["verify_threshold"],
+        scale_penalty=tech.get("scale_penalty", 0.0),
     )
     t_find = time.time() - t0