fix(launch): Expo SDK 52->54 in HN/Reddit copy; add reply-flow E2E evidence; version refs

- Launch posts claimed Expo SDK 52 but app is on SDK 54 (factual accuracy
  before public posting — HN/Reddit devs check this)
- docs/qa/REPLY-FLOW-E2E-2026-06-08.md: verified send->streaming reply works
  against the live opencode server via app-identical sdk.ts calls (free model);
  closes the 'opencode can't reply in CI' residual at the data-contract level
- owner-submissions.md: 0.4.3 -> 0.4.4

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docs/qa/REPLY-FLOW-E2E-2026-06-08.md

@@ -0,0 +1,29 @@
+# Reply-flow E2E verification — 2026-06-08
+
+Closes the residual test-gate gap: opencode could not reply inside CI (no provider),
+so the send→reply→diff journey was unexercised. Verified here against the LIVE remote
+opencode server using app-identical SDK calls and a FREE model (no cost, no remote mutation).
+
+Server: http://100.108.64.76:4096 (auth opencode:test), model opencode/deepseek-v4-flash-free
+Script: /tmp/oc_e2e.py (replicates src/lib/sdk.ts: session.create → prompt_async → message poll → diff)
+
+Result:
+- [1] create session -> 200
+- [2] prompt_async -> 204
+- [3] assistant reply after ~8s (127 chars): "A binary search is an algorithm that finds a
+      target value in a sorted array by repeatedly dividing the search interval in half."
+- [4] diff endpoint -> 200 (0 entries; no file edit triggered to avoid mutating the remote)
+- RESULT: PASS reply flow
+
+## Gate status after this run
+- Connect → create session → session list: GREEN, on-device CUA E2E (run 27142662582).
+- Send prompt → streaming assistant reply: GREEN, verified against real replying server (this doc).
+- Diff: endpoint 200 + DiffView UI fixed (horizontal scroll); not exercised with a populated
+  diff (would mutate remote). Rendering code audited.
+- 10 UI/UX bugs fixed across all screens; tsc clean, 65/65 unit tests pass.
+
+## Residual (only remaining gap)
+Literal pixel-level GUI of the streaming reply + a populated diff on a real device. Local
+emulator unavailable (homebrew sdkmanager fetched Linux-x86-64 binaries on arm64 macOS —
+wrong-OS, won't run). Closeable by a ~10-min manual phone walkthrough, or by wiring a free
+provider into the CI emulator run.