chore: 🔀 merge upstream nightly v0.0.46-nightly.20261012.3010

[chamaquita-d3]

Closes #84

Fixes #84. Merges upstream v0.0.46-nightly.20261012.3010 into custom-nightly with a merge commit. pnpm-lock.yaml is upstream's, reconciled with pnpm install --ignore-scripts.

File:lines	Class	custom-nightly	Upstream	Kept	Why
apps/mobile/src/features/threads/NewTaskDraftScreen.tsx:528	disjoint	voice input gets environmentId and threadId (from the earlier upstream merge)	voice label uses selectedProjectLabel (pingdotgg#17611)	both	The two sides edit different lines of the same call, so the label comes from upstream and the extra fields stay
apps/mobile/src/persistence/mobile-preferences.ts:9 (imports)	disjoint	PhoneBackground	EnvironmentId, PullRequest* types	both	Union of imports
apps/mobile/src/persistence/mobile-preferences.ts:100 (interface fields)	disjoint	phone background fields and PhoneBackgroundQuickAdjustPosition helper	threadListFilters, pullRequestListFilters (pingdotgg#18476)	both	Different preference keys; helper moved below the closing brace of the interface
apps/mobile/src/persistence/mobile-preferences.ts:192 (decode type)	disjoint	phone background keys	list filter keys	both	Different keys
apps/mobile/src/persistence/mobile-preferences.ts:315 (decode body)	disjoint	phone background decoding	list filter decoding	both	Different keys
apps/web/src/components/CommandPalette.tsx:104	disjoint	imports getClientSettings (used by the background editor command)	imports prompt-link helpers (pingdotgg#18454)	both	Different imports, both used
apps/server/src/serverSettings.ts (6 hunks)	superseded	hand-written secret redact, materialize and persist code for provider env, usage-limit keys, source-control hosts and dictation.apiKey	all of that replaced by schema-declared mapSettingsSecrets (pingdotgg#18505)	upstream	Upstream's refactor makes the old per-secret code moot
apps/server/src/settingsSecrets.ts, packages/contracts/src/settings.ts:908 (fix)	fix	dictation.apiKey was the one fork-only secret, handled in the removed code	no dictation settings	fork adapted	Marked DictationSettings.apiKey with secretSetting and mapped it in mapSettingsSecrets to the existing dictation-api-key store entry, so stored keys keep working
apps/mobile/src/features/phone-background/PhoneBackgroundRouteScreen.tsx:25,86,429	superseded	imports SettingsControlRow for the phone background rows	pingdotgg#18511 deleted SettingsControlRow in favour of ListRowLayout	upstream	The fork file used a component upstream removed, so it now uses ListRowLayout with the same icon, label and trailing control.

I did not run typechecks or builds here. Fork CI does that.

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