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ALPHA_SOAK.md

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+# Alpha soak checklist (LAN demo)
+
+<!-- doc-meta:start -->
+| Field | Value |
+|---|---|
+| Author | Anton Afanasyeu |
+| Revision | R1 |
+| Creation date | 2026-05-23 |
+| Last modification date | 2026-05-23 |
+| Co-authored |  |
+| Severity | medium |
+| State | scheduled |
+| Document type | draft |
+<!-- doc-meta:end -->
+
+\newpage
+\newpage
+
+---
+
+
+Manual QA on **two devices** on the same Wi‑Fi. Goal: stable show path without experimental transports or stream protection.
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+## Table of contents
+
+<!-- toc -->
+- [Before you start](#before-you-start)
+- [Happy path (~15 min)](#happy-path-15-min)
+- [Stress (optional, ~10 min)](#stress-optional-10-min)
+- [Pass criteria](#pass-criteria)
+- [If something fails](#if-something-fails)
+- [Not in alpha soak scope](#not-in-alpha-soak-scope)
+<!-- /toc -->
+
+**Documentation index:** [README.md](README.md)
+
+---
+
+## Before you start
+
+| Setting | Sender | Receiver |
+|---------|--------|----------|
+| Transport | **UDP** | **UDP** (must match) |
+| Stream protection | **None** | **None** |
+| Video codec | **H.264 (AUTO)** | **H.264 (AUTO)** |
+| Resolution (sender) | **720p** or **Auto** for first pass | — |
+| Multi-receiver | **One** receiver selected | — |
+
+PIN default: `1234` (change in settings if needed).
+
+## Happy path (~15 min)
+
+1. Install the same debug/release APK on both devices.
+2. **Receiver:** Main → **Receive** → **Start listening** (notification shows *Listening*).
+3. **Sender:** Main → **Send** → refresh discovery → pick receiver → enter PIN → approve screen capture.
+4. Confirm sender notification: *Casting via UDP · WxH*.
+5. Confirm video and audio on receiver for **≥ 5 minutes**.
+6. Rotate sender once; confirm stream recovers or stop/restart cleanly.
+7. Press **Stop** on sender notification; receiver returns to awaiting state.
+
+## Stress (optional, ~10 min)
+
+- Background sender app for 30s, return — stream continues or fails with clear status (no silent hang).
+- Lock/unlock receiver once during cast.
+- Second cast session without reinstall (stop → start again).
+
+## Pass criteria
+
+- No crash on either device during happy path.
+- Video appears within **10s** of capture consent.
+- Stop ends services and notifications on both sides.
+
+## If something fails
+
+| Symptom | Check |
+|---------|--------|
+| No video | Transport match; receiver listening first; open receiver UI once for surface attach |
+| Auth failed | PIN; same Wi‑Fi; firewall on LAN |
+| *Screen capture data missing* | Reinstall APK; Android 13+ consent intent |
+| Choppy only on UDP | Retry with **TCP** on both sides (fallback test) |
+
+## Not in alpha soak scope
+
+- QUIC / WebRTC / USB-tether transports
+- FEC / NACK stream protection
+- 1:N multi-receiver (unless explicitly testing)
+- OTA / crash upload (backend track) — except **RSSH remote access**, which is **full alpha essential** (separate checklist in [ALPHA.md](ALPHA.md) § F)