Isolate speech transport failures and keep experimental media usable

docs/SPEECH-INTEGRATION.md

@@ -88,7 +88,7 @@ Raw log `.searchi/qa/service-speech-google-cpu-v3.log`: 1292 bytes, SHA
 The first normal auto compilation reached Vulkan setup but failed on Windows
 nested MSBuild path length. Its log is retained, SHA
 `59f1820d6ac6adac6f525d8084c442c1ed261753eb34fcce916dc157041f777c`.
-An unchanged build in a shorter owned output directory is underway; no CPU-only
+An unchanged build in a shorter owned output directory was started; no CPU-only
 distribution was substituted.
 
 The shorter-path normal auto build subsequently completed. Worker SHA
@@ -122,3 +122,24 @@ The complete report is 174868 bytes, SHA
 It uses the internal v3 CPU artifact and does not establish normal auto runtime
 quality parity or GPU performance. Details and the retained comparison are in
 [the evaluator](../tools/speech-eval/native-validation/README.md).
+
+## Longer-source failure and release recovery
+
+The normal-runtime timing regression retained all five original sources and
+all eight queries, but the speech session returned a transport failure on the
+first source and later files inherited the unavailable session. Raw Google
+indexing completed with 79 chunks and no media failures. Recognized timing
+scores remain ineligible; no historical 6/8 score is claimed for this run.
+
+An isolated native reproduction using the **exact failed PCM hash**
+`03ef72d2a4cb926b7d31fbaef757a6cb954a55d6d6961085ea6992728c8d9e37`
+completed all four actual VAD intervals, valid recognition responses and exit
+zero. The original transport failure is unexplained; no model or memory tuning
+was introduced to hide it.
+
+The release now restarts a verified session once at the next new source after
+a terminal recoverable transport failure. The original failed source remains
+reported; compatible donors return before restarting and raw search stays
+usable. Malformed protocol/text and invalid token points never arm this reset.
+Five focused service tests and native transport/lifecycle checks passed with
+strict Clippy. Media and spoken passages remain visibly experimental.