Remove obsolete documentation screenshot assets - #1159

## TL;DR

Selective re-implementation of the OpenUsage commits since Runway #111
that still apply: Claude Desktop's account-prefixed token caches, Claude
spend tiles without an OAuth login, Grok subagent session ledgers, Codex
Business Premium, Cursor's Models/Other Models labels, and new model
rates.

## What was happening

- Upstream has moved on since #111. Each new OpenUsage commit was
reviewed against Runway's architecture, existing ports, and the "don't
bloat" bar.
- Recent Claude Desktop builds store tokens under `acct:<user>|<legacy
key>` (openusage robinebers#1212). Runway expected the client UUID first and
skipped those entries, so a Desktop-only login showed Not logged in.
- Claude returned a hard authentication error before scanning local logs
when no OAuth login existed (openusage robinebers#1138), so API-key gateway users
lost Today/Yesterday/Last 30 Days.
- Grok's scanner skipped every `subagent*` session (openusage robinebers#1193).
Child work that the coordinator turn did not include disappeared from
spend.
- Codex's `self_serve_business_prolite` entitlement rendered as "Self
Serve Business Prolite" (openusage robinebers#1194).
- Cursor's dashboard now calls the two model pools **Cursor Models** and
**Other Models**; Runway still said Auto Usage / API Usage (openusage
robinebers#1134, labels only).
- GPT-6 Astra, Gemini 3.8 Flash, Fable 5.1, GLM 5.3, and Grok Bot CSV
slugs had no supplement entries, so those rows tripped the
unpriced-model warning.

## What this changes

- Desktop cache selection strips the `acct:<user>|` prefix, keeps only
the signed-in account (from `lastKnownAccountUuid`), and lets a scoped
tombstone suppress the matching legacy V1 alias.
- Unauthenticated Claude refreshes still scan local logs. Spend tiles
render under the existing Not logged in notice when those logs contain
usage; an empty machine stays a hard error card.
- Grok scans every durable `updates.jsonl` ledger. Prompt-id dedup still
drops forked parent replays. `summary.json` is no longer required to
keep a ledger.
- Codex maps `self_serve_business_prolite` to **Business Premium**.
- Cursor widget IDs are unchanged. Titles/labels become Cursor Models /
Other Models to match Cursor's dashboard.
- Pricing supplement: GPT-6 Astra (OpenAI card, 2× fast), Gemini 3.8
Flash (Cursor table, $3.50 output), Fable 5.1, GLM 5.3, and `grok-bot-*`
→ Grok 4.6.

## Heads-up

Reviewed and **not** ported, with reasons:

- **openusage robinebers#1116 / robinebers#1127 / robinebers#1185** (analytics ping, PostHog) — Runway
removed analytics in #9.
- **openusage robinebers#1111 / robinebers#1136 / robinebers#1106** (scroll / Settings lag / SVG
parse) — Runway already has `ReorderFrameStore`, parsed-once
`ProviderMark`, and the rebuilt popover path. Taking their patch would
duplicate that work.
- **openusage robinebers#1137 / robinebers#1165 / robinebers#1141** (Codex Session default, Fable
order) — Runway already hides Codex Session by default and already
places Fable directly below Weekly. Layout defaults stay an owner
decision.
- **openusage robinebers#1134 Grok Bot meter** — new Cursor metric. AGENTS.md
requires owner confirmation of the four defaults before adding it; this
PR only takes the dashboard label rename and the `grok-bot-*` pricing
aliases.
- **openusage robinebers#1139** (Antigravity local spend) — new scanner, protobuf
decoder, and new metrics. Too large for this wave and needs the same
default-placement call.
- **openusage robinebers#1195** (OpenCode Codex OAuth attribution) — new scanner
sharing Codex request pricing. Real feature, own follow-up; folding it
in here would bloat the PR.
- **openusage robinebers#1164** (Claude multi-account) — Runway already discovers
Claude homes and gives each account its own card.
- **openusage robinebers#1177** (Codex fallback pricing Settings) — extra Settings
surface; earlier port waves skipped extra reset/settings chrome for the
same reason.
- **openusage robinebers#1179** (dead pin ID remap) — OpenUsage layout keys and
old Antigravity IDs. Runway installs never held those keys (different
defaults domain), and schema v3/v4 are already used for the beta-channel
and telemetry retirements.
- **openusage robinebers#1172** (bound log memory) — Runway already rejects
non-finite / overflowing token counts at the parse boundary instead of
clamping them.
- **openusage robinebers#1167 / robinebers#1016** (sub-1% "Not started", untouched pacing) —
already in Runway (`used <= 0`, `Pace.evaluate` returns nil when
unused).
- **openusage robinebers#1128** (Sparkle 2.9.6) — still a relevant bump; leaving
it to Dependabot rather than mixing a package-resolution change into
this accuracy PR.
- **openusage robinebers#1170 / robinebers#1159 / robinebers#1143 / robinebers#1163** (contribution policy,
screenshot assets, test-suite cleanup) — not user-facing on Runway, or
would churn tests without changing behavior.
- **openusage robinebers#1196** (legacy Codex iCloud identity) — Runway's sync
identity path is already fork-specific.

Gemini 3.8 Flash output is **$3.50**, from [Cursor's
table](https://cursor.com/docs/models-and-pricing.md), not upstream's
$3.75 Google API rate. That matches how Runway priced Gemini 3.7.

## Tests

- Desktop: prefixed key for the signed-in account wins; foreign `acct:`
keys are ignored; a scoped V2 tombstone suppresses the V1 alias;
`load()` reads `lastKnownAccountUuid`.
- Claude: no credentials plus local logs → spend tiles and Not logged
in, not an error card. Empty machine still errors.
- Grok: subagent ledger is included; fork replay of a shared prompt
still counts once.
- Codex: `self_serve_business_prolite` → Business Premium, weekly-only
window.
- Pricing: Astra / 3.8 Flash / Fable 5.1 / GLM 5.3 / grok-bot slugs and
router labels resolve. `testEveryAliasCanonicalResolves` covers the new
rules.
- Cursor mapper tests updated to the new labels; widget IDs unchanged.

`swift test --filter
"ClaudeDesktopAuthStoreTests|ClaudeProviderTests|CursorProviderTests|CursorUsageSummaryTests|GrokLogUsageScannerTests|CodexUsageMapperTests|PricingBundledResourceTests|LayoutStoreTests"`
— 179 tests, 1 skipped, 0 failures.