Prepare bounded speech diagnostics and document mixed routing risks

docs/ROADMAP.md

@@ -56,6 +56,10 @@ Status: implementation started; no production release yet. Windows VM tests use
   and indexing-cost measurements (see MEDIA-QUALITY.md).
 - [ ] Improve precise spoken-passage localization, music hard negatives and
   calibrated handling of queries without a relevant match.
+  - [x] Prepare bounded CPU speech diagnostics and test process failures,
+    timestamp units and frozen-label scoring; see [speech proposal](SPEECH-ALIGNMENT.md).
+  - [ ] Run genuine local speech candidates, Google transcript retrieval and
+    held-out English/German/music/no-speech checks before selecting a default.
 - [ ] Package and verify decoders on every release OS; test production acceleration.
 - [x] Native Linux x86-64 pinned decoder provenance, startup, WAV probe and CPU
   decode; broader codec/ABI coverage and desktop packaging remain open.
@@ -208,6 +212,10 @@ Completion requires recorded evidence; targets are not measured results.
   ordinary-document exclusion and exact MCP source excerpt verification.
 - [ ] Evaluate independent real repositories, more languages, overloaded
   symbols, near-duplicate routines and queries with no relevant implementation.
+  - [x] Audit mixed-task routing and eligibility cache behavior; see
+    [routing audit](RETRIEVAL-ROUTING.md).
+  - [ ] Complete the frozen mixed baseline, then measure task fusion and cache
+    cost without tuning solely against the diagnostic labels.
 - [ ] Validate code search UI interaction on native Windows/macOS/Linux and
   actual GPU hardware. Tiny CPU fixtures do not close those release gates.