Freeze independent DTW speech timing diagnostic and startup provenance

tools/speech-eval/dtw-policy.json

@@ -0,0 +1,13 @@
+{
+  "schema": 1,
+  "policy": "dtw-token-sentences-v1;centisecond-points;first-last-point-span;exact-text;no-labels",
+  "candidate": "base",
+  "worker_sha256": "12c681b4bcd9c7679b647b9a041e121a2f9e72cb2a9c6f189f529ec8b79c36f8",
+  "fixture_sha256": "b4e465a0eb9582b826eebd2a20797e1680e4907e336d02d0ef2194e2ba0af393",
+  "assets": ["clip04", "music01", "music02", "sound01", "sound02"],
+  "query_count": 8,
+  "asr_flags": ["--no-gpu", "--threads", "1", "--processors", "1", "--language", "auto", "--output-json-full", "--dtw", "base", "--no-flash-attn"],
+  "point_units": "Native t_dtw centiseconds multiplied by ten; first/last ordinary-token points define approximate sentence point span, never native token duration",
+  "acceptance": "All sources/windows retained; ordinary interval failures retained separately; only valid source-window-bounded globally monotonic DTW points can produce accepted aligned candidates",
+  "production_default": false
+}