Verify Linux speech client portability and reconcile release roadmap

docs/LINUX-SPEECH-0.1.6.md

@@ -0,0 +1,28 @@
+# Linux speech client portability check
+
+2026-10-13, Ubuntu 24.04 WSL x86-64. Immutable source snapshot from commit
+`9bc7221`; existing isolated Cargo cache and target, locked offline dependencies.
+`SEARCHI_FORCE_CPU=1` throughout. No model inference or GPU execution occurred.
+
+Executed checks:
+
+```sh
+cargo test -p searchi-speech --locked --offline
+cargo check -p searchi-cli --locked --offline
+SEARCHI_TEST_PYTHON=python3 cargo test -p searchi-speech actual_subprocess_timeout_and_overflow_are_reaped --locked --offline -- --ignored --nocapture
+```
+
+Five default unit tests passed. The real owned-subprocess transport test also
+passed: timeout and oversized framing reaped their child processes; only the
+typed transport failure was eligible for recovery. The genuine native speech
+model test remained ignored. CLI compilation passed, including the shared
+speech/service/assets dependencies, without desktop dependencies.
+
+Recorded command output: speech compilation 11.67 seconds; headless dependency
+check 7.28 seconds; real transport test 0.14 seconds. These are build/test durations,
+not inference or search performance measurements.
+
+Snapshot: `/home/karl/.cache/searchi-validation/linux-source-9bc7221`.
+This closes a client portability check only. It does not prove the Linux native
+speech worker, model setup, runtime packaging, recognition quality, desktop UI
+or GPU operation. Published Linux downloads remain version 0.1.4.

docs/ROADMAP.md

@@ -1,6 +1,6 @@
 # Production readiness roadmap
 
-Status: Windows v0.1.5 published and installed; Linux v0.1.4 previews published. Broader production gates remain open. Windows VM tests use CPU only.
+Status: Windows v0.1.6 published and installed; Linux v0.1.4 previews published. Broader production gates remain open. Windows VM tests use CPU only.
 
 Karl's release priority, 2026-10-13: publish a usable first Windows version and
 install it on DEV-WIN11 now. Extensive platform/GPU, clean-machine, signing and
@@ -46,11 +46,17 @@ Google EmbeddingGemma 2 remains the main text/image/audio/video search model.
   - [x] Current CPU worker processed real English/German recordings from Unicode
     paths and reused loaded recognition contexts; this is functional evidence,
     not independent retrieval or word-timing accuracy.
+  - [x] Current Rust speech client unit and actual subprocess lifecycle checks
+    passed on Ubuntu 24.04 WSL; headless client dependency compilation passed.
+    [Evidence](LINUX-SPEECH-0.1.6.md); native Linux ASR and updated packages remain open.
   - [x] Genuine shared-service ASR/Google lifecycle passed: verified speech
     excerpts, zero raw reencodes through policy failure/retry, and retained
     query reader; [proof](SPEECH-INTEGRATION.md).
-  - [ ] Run genuine shared-service Google lifecycle and frozen independent query
+  - [x] Run genuine shared-service Google lifecycle and frozen independent EN/DE
-    controls; stage and deliver the normal hardware-detecting runtime.
+    query controls; stage and deliver the normal Windows hardware-detecting runtime.
+    See [speech evidence](SPEECH-INTEGRATION.md) and [release](WINDOWS-0.1.6.md).
+    Small positive fixture passed; absent-content controls failed. This does not
+    close broader recognition, timing or other-platform gates.
 - [ ] Validate richer no-answer evidence on new independent positive/negative data; do not retune the failed universal cosine cutoff on old held-out results.
 - [ ] Integrate accepted improvements into shared engine/UI/headless clients with verified setup, lifecycle and CPU performance evidence. Diagnostics alone do not raise the media quality rating.
 - [x] Publish v0.1.0 Windows installer/checksum, verify public download bytes,