Record the shipping plan and four sound-research todos

Discussion-only session, no code. HANDOFF gets a new LATER section holding the
decisions: paid $2.99 both stores with no ads, a web demo capped at the end of
chapter 1, the CHALLENGE (Hawk-Eye as a free earned continue) and the
short-form video campaign — plus what must NOT be built, because selling
weapons or adding a meta currency would fight settled design decisions.

OPEN gains item 11: the ball machine's squeak, burning zombies, the machine-gun
burst and the boss sound set all need a source chosen before implementing.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

HANDOFF.md

@@ -5,10 +5,11 @@ everything they specified is shipped, and what still matters from them is record
 long history, `~/.claude/projects/.../memory/splatter-tennis-history.md` is auto-loaded; for the
 detail of any individual change, read the git log.
 
-Last updated 2026-07-30, after Oliver's fourth playtest round. **Start with "How to work on this"
+Last updated 2026-07-31. **Start with "How to work on this", "OPEN — leftovers" and "LATER —
-and "OPEN — leftovers"** (both just above the CLOSED sections) — the first tells you how his feedback
+shipping it"** (all three just above the CLOSED sections) — the first tells you how Oliver's feedback
-should be handled, the second is everything known to be outstanding. All four playtest rounds are
+should be handled, the second is everything known to be outstanding in the game, the third is the
-closed below them, newest first. **Awaiting his next phone playtest.**
+demo/store/campaign plan, which is decided but entirely unbuilt. All four playtest rounds are closed
+below them, newest first. **Awaiting his next phone playtest.**
 
 ## What this is
 SNES-style pseudo-3D tennis (Super Tennis reference) that transitions into a zombie splatter game
@@ -468,6 +469,79 @@ Nothing here is broken; these are known gaps and unverified risks.
    that catches your shots. Recorded so the ideas are not lost, not as a to-do.
 10. **`ump_no_deal` does not exist.** Oliver asked for its removal; `ump_no_appeal` was removed as the
     closest match. Worth one confirmation that no other line is still unwanted.
+11. **Four sounds are missing and need RESEARCH first** (find/choose the source before implementing —
+    every existing sfx is either synthesised in `audio.js` or a wav in `assets/audio/`):
+    - the **ball machine** while it moves — a squeaking wheel/castor, so the furniture announces
+      itself. It already telegraphs its shot (`machWind` 0.9 s); this is the *approach* cue.
+    - **burning zombies** — fire is an epidemic now (`burnSpread`, `burnTime` 3 s), so this is a
+      looping crackle plus something the body does, and it has to layer without turning a lit-up
+      wave into noise.
+    - the **melee gun** — i.e. the machine-gun burst (`mgRate` 12/s during a horde, `mgPickupLen` 8 s
+      from a tin). At 12 rounds/s a per-pellet sample will machine-gun the mixer, not just the wave.
+    - **boss sounds** — footfall, wind-up, throw, wound, death. Three designs in `BOSS_ART`; decide
+      whether they share one set or get one each before recording anything.
+
+---
+
+# LATER — shipping it: demo, stores, campaign
+
+Decided in discussion 2026-07-31 with Oliver. **None of this is built.** Recorded here so the
+decisions survive; the ordering below is roughly the order to do it in.
+
+**The model: paid, $2.99, no ads.** Both stores. No ad SDK, no consent/CMP flow, no ATT prompt, no
+tracking — which keeps the store card at "Data Not Collected", keeps review trivial, and keeps a
+zero-dependency project zero-dependency. *Maybe* later: a free build capped at chapter 1 with an IAP
+to unlock all chapters. That is a fallback, not the plan — paid→free is a normal move, free→paid is
+not, so launch paid.
+**Ads are rejected**, with one exception held in reserve: rewarded video on the CHALLENGE (below),
+never an interstitial. An interstitial after death would land exactly in the "one more run" gap that
+`EATEN_RESTART` exists to protect, and would end sessions rather than annoy.
+
+1. **The capped web demo.** The public web build stops at the **end of chapter 1** — after the first
+   chapter boss is beaten (`G.runGames >= 10`, `bossEvery`), on the chapter-2 card, ending on a WIN,
+   not a wall: "CHAPTER 2 — continue on the App Store." The cut must sit *after* everything a promo
+   clip promises (transition, first horde, a duel, weapons, the boss), because the web build's whole
+   job is converting a 15-second clip into "I played it".
+   Implementation is ~10 lines: a check on the chapter-2 card plus a build flag the store build sets
+   to skip it. **Build no protection around it** — it is client-side JS on a static host, trivially
+   bypassable, and nobody who would pay $2.99 will open devtools. DRM here is pure cost.
+   Consider leaving **desktop uncapped** (`matchMedia('(pointer: coarse)')`, already used for
+   `autoAssist`): nothing to cannibalise there, and an uncapped desktop build is what gets linked.
+2. **Store readiness.** Wrap the PWA (Capacitor/PWABuilder). Unknowns to check *before* committing:
+   audio behaviour in WKWebView, safe-area (already solved for the browser, may differ in the shell),
+   and 60 fps canvas under WKWebView at `RES` 4 — see OPEN 1, this is the second place that risk
+   lands. Costs: a build step in a deliberately build-step-free project, Apple $99/yr, Google $25
+   once. Landscape (OPEN 6) probably has to stop being under-maintained before a store review.
+3. **The CHALLENGE — ship it FREE.** Tennis already owns the paid-continue mechanic: Hawk-Eye. On
+   death (`G.mode='eaten'`), the umpire announces a challenge, the replay shows the shambler's foot
+   over the line, and the call is **overturned** — you resume. The sport supplies the cap for free
+   (challenges per set), so the limit is diegetic rather than a paywall excuse.
+   Build it as an **earned** mechanic, not a purchase. It is good design on its own, and it is the
+   only slot in the game that could ever carry a rewarded video if the model changes. Note it does
+   change what a run *means* — right now the run summary is the whole game — so it needs a playtest
+   on feel before it is assumed good.
+4. **Short-form video campaign.** The only free channel that reaches people who have never heard of
+   the game; the algorithm serves cold, so every post is a free lottery ticket. Format: vertical
+   (portrait is already primary — no letterboxing, unlike most game footage), open mid-rally on what
+   looks like an ordinary SNES tennis game, reveal the transition at ~3-5 s. Sound matters: the
+   recorded umpire over splatter is what earns an unmute. Volume over polish — 20-30 clips, one
+   export cross-posted to TikTok/Reels/Shorts. **No devlog content** (it reaches developers, who do
+   not buy games).
+   Clips the game already contains: the transition (the flagship), a boss walking on, the ball boy
+   calmly mopping blood, a flame ball starting an epidemic across a lined-up wave, parrying a boss's
+   volley back into him, a horde, the death + run summary.
+   A capture helper on `window.T` to jump straight into a given beat (the transition timeline is on
+   `G.transT`) would make clean takes cheap — not yet built.
+
+**Expectations, so nobody is surprised:** with no marketing, 20-100 units in year one is the honest
+central estimate (~$40-210 net, i.e. under Apple's fee at the low end). The monetization model is
+worth maybe $200 either way; the video channel is worth ~100x that. Ship paid because it is cheap and
+protects the design, not because it will earn.
+
+**Explicitly NOT to be built** (these fight settled decisions, see the invariants above):
+- **selling weapons or tins** — weapons are *only ever won*, in the duel; a shop deletes the duel's
+  reason to exist and `healPerDuel` with it.
+- **a meta-progression currency** — permadeath and the run summary *are* the meta layer.
 
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