docs: decisions log, queue trim, HANDOFF rewrite — the map stops being a treadmill

TASKS.md 467 → 66 lines: one line per live item, detail stays in TASKS/
task-*.md. The old catalogue (63 rows of paragraph status prose plus the
historical narration) is preserved verbatim as TASKS/archive.md — a
2026-10-29 snapshot, not the live queue. The "out of product" list and every
retired decision moved to docs/ai/decisions.md with cause of death.

HANDOFF.md 440 → 40 lines, and it is now OVERWRITTEN, not appended: branch,
what's in flight, next action, live landmines, pending creator checks. History
belongs to git log; the previous handoff is reachable at ee3c592:HANDOFF.md.

docs/ai/decisions.md (new) collects what no longer governs: the paid tier and
its pricing, Polar, Store IAP, the Store route and why it died, the deleted
Velopack updater, signing economics, the retired monetization ideas, and the
permanent out-of-product list.

Facts that lived in the old ai.md "Current limitations" section were re-homed
rather than dropped with the router rewrite: OAuth/DPAPI/session behaviour →
docs/ai/youtube-api.md; paths, persistence and the Google project number →
docs/ai/environment.md.

verify.sh caps now cover all four always-read files (AGENTS 210, ai 100,
HANDOFF 40, TASKS 120).

Docs-only unit: scope-check run, no build.

docs/ai/decisions.md

@@ -0,0 +1,89 @@
+# Decisions log — retired paths, kept so they are not re-litigated
+
+One dated line per decision that **no longer governs**, plus the reason it died. Read only when
+you are about to re-open one of them. Live rules live in the subsystem files; this is the
+graveyard with cause of death.
+
+## Monetization — all superseded by the free-forever ruling (2026-10-08, TASK 54)
+
+- **2026-09-21** one-time perpetual licence `$29` founder → `$49` list — superseded 6 days later.
+- **2026-09-27** `$10/mo` subscription or `$400` lifetime, **no annual**. Store revenue share was
+  verified at **15%** (ADA v8.10 §6(b)(i) → `$8.50` / `$340` net), including subscriptions.
+- **No annual tier** because Microsoft does not pro-rate: *"monthly subscriptions and initial
+  (pre-renewal) purchases aren't eligible for a prorated refund"* — a first-year subscriber who
+  cancels loses the remaining months and the developer cannot refund it.
+- **Clean numbers, no `.99`** (creator: *"Let's stop with the x.99 stuff"*). The convention exists
+  only to make a price look cheaper, which is incoherent for a brand sold on honesty.
+- **Escalation model** (2026-09-01): the credit was deliberately obnoxious self-promo; the cadence
+  *is* the nagware — no modals, no feature locks, no stream-time cutoffs.
+- **Pre-GA posture — preview-only flash** (reversed 2026-09-26): the credit used to render in the
+  preview and never on the broadcast, to keep test VODs clean. The creator ruled the free tier must
+  be honest advertising; it now composites into output and recordings when enabled.
+- **Rejected**: always-on watermark (obscurable — replaced by the flash), hard stream-time cutoffs
+  (a stream dying mid-broadcast reads as broken), soft-limit nagging, freemium feature tiers,
+  donation-only, and any resolution/quality ceiling. Auto step-down (TASK 33) is a *protect the
+  stream* feature, never a monetization penalty.
+- **Polar** — $50 already paid, 5% + $0.50 Starter, merchant of record. Dormant, not
+  deleted-in-principle: no product, org ID, key prefix or discount code exists
+  (`d105dfa1-…`, `c05fb364-…`, `LCYT-`, `LLAMAFOUNDER`/`LLAMA50`, the portal-validate endpoint and
+  the 14-day offline-grace machine are all gone). `Distribution.md` §4.2/§4.5 keeps the design.
+- **Store IAP** was never implemented — `Windows.Services.Store` appears nowhere in the repo.
+- ⚠️ **Two obligations any future subscription would create** (ADA §6(h)): fulfil the whole period
+  as marketed (breach → Microsoft may refund in full at its discretion), and **raising the price
+  disables auto-renew** — the launch price is effectively locked for the product's life.
+
+## Distribution — Store route withdrawn 2026-10-22
+
+- **2026-09-27 Store MSIX + Store IAP decided; 2026-10-22 withdrawn.** A brand name on the
+  Store's *publisher* line requires a **Company** account → a registered legal entity (LLC ~$85
+  New Mexico with a ~2-week SOS backlog, ~$143 Wyoming). Partner Center does **not** convert an
+  Individual account to a Company account later, and an Individual account publishes under the
+  verified legal name. The creator will not fund an entity for a nameplate.
+- **2026-10-22 Velopack deleted** — it downloaded and executed, which Store policy 10.2.2 forbids.
+  The Store was going to update the app, so that premise died with the route: **the app now has no
+  update path**, and `StorePackagingTests` currently asserts that no updater exists — rewrite that
+  guard with the chosen updater, never leave it to veto one.
+- **The MSIX package still builds** (159 MB `artifacts/LlamaCasty.msix`, submitted nowhere). The
+  route contradiction between `ai.md`'s older text and the TASKS files is settled in one sweep at
+  the distribution revisit, not patched piecemeal.
+- **Signing**: Microsoft removed the EV instant-bypass for SmartScreen in March 2024, so EV buys
+  what OV buys; the 2026-10-22 ruling is **ship unsigned** and accept the "unrecognized publisher"
+  warning until download reputation accrues. Deferred, not rejected.
+- **Steam when $100 exists**: Steam Direct $100/product (recoupable after $1,000 AGR), categories
+  *Audio/Video Production* / *Player Tools* (OBS precedent), developer/publisher name self-chosen
+  (no entity needed), 5+ 1920×1080 screenshots + capsule art, a build Valve runs, a 2-week live
+  page, 30% cut.
+
+## Product surface — retired
+
+- **2026-09-24 StreamElements replaced by native alerts** (TASK 43). No third-party widget feed:
+  the chat poll *is* the event feed.
+- **2026-09-01 the screens/layers settings audit** was retired into the gold pass (TASK 36 item 3)
+  rather than run as session debt.
+- **2026-10-04 launch position**: restoring the saved position was rejected for a derived
+  top-left placement. The live rule is in `ui-surface.md`; the old clamp's tolerance range is why
+  it must not come back.
+- **D3D11 swap compositor** — superseded by the software compositor (TASK 3 item 16).
+- **Windows 8 / 32-bit support** — 64-bit Windows 10/11 only (creator ruling 2026-10-09).
+- **"There is no v1.x"** (2026-09-01): everything queues to v1 or to *out of product,
+  permanently* — no feature parks "for a later version".
+
+## Out of product — permanently
+
+Do not build these; each was explicitly ruled out.
+
+- D3D11 swap compositor (superseded by the software compositor).
+- OBS-style source expansion — game capture, browser-source zoo, media playlist, VLC, colour-key,
+  MIDI. The minimal source set is deliberate; creators who need more have graduated to OBS.
+- Multi-layout / profiles / presets — that is what OBS is for.
+- Cross-process stream resume (impossible via the API; creator ruling 2026-09-01).
+- Stream Deck / Loupedeck integration — the device sends keystrokes, and global hotkeys already
+  *are* the integration.
+- Per-source audio sync offset — global offset shipped (TASK 22); per-source is the OBS mixer
+  rabbit hole and breaks the one-knob audio rule.
+- Chroma key / NVIDIA-only background removal (the bundled ONNX path is the one shipped).
+- Virtual camera output — a different product and a device-driver swamp; our output is one
+  YouTube stream.
+- Replay buffer, stream clipping, multi-destination restreaming, an in-app bug reporter, and an
+  advanced broadcast-form tab (latency/DVR/embed/projection/CC/region are fixed at sane defaults;
+  every exposed field is a support ticket).