docs: update validation results — Green 75%, White 90%, overall 92.3%

README.md

@@ -63,16 +63,12 @@ Evaluated on 78 labeled songs from `staged_raw_material` using 30s/5s-stride chu
 | Red | 11 | 12 | 91.7% |
 | Orange | 4 | 4 | 100.0% |
 | Yellow | 10 | 10 | 100.0% |
-| Green | 0 | 8 | 0.0% ⚠️ |
+| Green | 6 | 8 | 75.0% |
 | Blue | 11 | 11 | 100.0% |
 | Indigo | 10 | 11 | 90.9% |
 | Violet | 11 | 12 | 91.7% |
-| White | 0 | 10 | 0.0% ⚠️ |
-| **Overall** | **57** | **78** | **73.1%** |
-
-**Green (0%)** — all predicted as Yellow. This is pipeline-safe: Green and Yellow share identical CHROMATIC_TARGETS distributions, so downstream chromatic match and drift scores are unaffected.
-
-**White (0%)** — all predicted as Yellow or Blue. White's uniform `[0.33, 0.34, 0.33]` targets are meaningfully different, so this is a known open issue. White albums are musically intentionally diverse, which makes them acoustically diffuse in CLAP's feature space.
+| White | 9 | 10 | 90.0% |
+| **Overall** | **72** | **78** | **92.3%** |
 
 ## Usage