Document engineering learnings and refresh handoff guidance

docs/PROJECT_STATUS.md

@@ -1,6 +1,10 @@
 # Project status and handoff
 
-Last updated: 2026-09-12.
+Last updated: 2026-09-19 (documentation review; no new runtime qualification).
+
+Reusable implementation, testing, device and deployment lessons are in
+[ENGINEERING_LEARNINGS.md](ENGINEERING_LEARNINGS.md). September 12 test/install
+results below are historical evidence, not a September 19 health check.
 
 ## Current direction
 
@@ -63,6 +67,10 @@ Hardware audio and interruption qualification remains open.
 
 ### Tests and tooling
 
+- Follow-up commits added the Lightwell app icon (`7ac8a1c`) and regenerated the
+  project to include its asset-catalog resource phase (`85169d6`). The qualification
+  results below predate those follow-ups; do not describe them as a fresh full run
+  of the current HEAD.
 - Installed XcodeBuildMCP and its skills; used it for simulator build/run/test work.
 - The current combined simulator run passed **50 tests, 0 failures**, with the
   opt-in live suite skipped once. Five offline UI scenarios cover recovery,
@@ -97,7 +105,9 @@ SSH host: `[email protected]` (Unraid). App URL: `https://192.168.86.2:9178`.
 **Important:** the backend patch and its test are in a different local repository:
 `/Users/shane/dev/hope-voice-api/web/media_server.py` and
 `/Users/shane/dev/hope-voice-api/tests/test_ios_audio.py`. They were still uncommitted
-at this handoff. Committing/pushing `voice-ios` does **not** publish those files.
+at the earlier deployment handoff; their current sibling-repository status has not
+been rechecked in this documentation update. Committing/pushing the iOS repository
+does **not** publish those files.
 The deployed image contains the patch, but a future backend CI rebuild can lose it
 unless it is committed and deployed through that repository's workflow. Inspect
 that workflow before pushing: it may replace the live container.