Preserve explicit code candidates and expose verified model asset milestones

docs/ROADMAP.md

@@ -186,9 +186,15 @@ Audit and measured priorities: [EMBEDDINGGEMMA2-AUDIT.md](EMBEDDINGGEMMA2-AUDIT.
     integration and actual Windows CPU parity/boundary/reference tests.
     Paired samples reduced private commitment by 183 MB; resident memory and
     cached startup were essentially unchanged. See [QUERY-CONTEXT.md](QUERY-CONTEXT.md).
-  - [ ] Verify native Linux/macOS, GPU parity and updated installed packages.
+  - [x] Native Linux query-context and CLI/MCP cited-result checks, with six
+    paired CPU process measurements; resident/PSS memory effectively unchanged.
+  - [ ] Verify native macOS, GPU parity and updated installed packages.
   - [ ] Evaluate text readiness before the larger media projector finishes
     downloading; preserve verified assets and honest media setup status.
+    - [x] Typed backbone/projector verification callbacks with full-pair setup
+      semantics preserved; 16 asset tests passed, including gated media download.
+    - [ ] Integrate explicit text/media coverage, retained query readiness and
+      media retry status across engine/desktop; verify actual first use.
 - [ ] Buffered bounded media IPC and linear UTF-8 source-window offset processing.
 - [ ] Evaluate 256d MRL and content-specific vision budgets on independent data.
 - [ ] Validate GPU precision, synchronization-aware timings, parity and fallback
@@ -219,6 +225,8 @@ Completion requires recorded evidence; targets are not measured results.
     returned candidates. See [mixed quality](MIXED-QUALITY.md).
   - [ ] Measure task fusion and cache cost against independently reviewed
     held-out data, preserving the frozen diagnostic for regression comparison.
+  - [x] Explicit English/German code intent vetoes exclusive audio routing;
+    actual Google CPU regression preserves code among qualifying audio candidates.
 - [ ] Validate code search UI interaction on native Windows/macOS/Linux and
   actual GPU hardware. Tiny CPU fixtures do not close those release gates.