* fix(dictionary): keep other dictionaries usable when System Dictionary syncs to an unsupported platform
`dictionarySettings.providerEnabled` is whole-field synced across devices, so enabling System Dictionary on macOS/iOS sets the flag on web/Linux/Windows too. There the row is hidden and the feature is a no-op, but the settings UI read the raw flag and locked every other dictionary's toggle read-only. Gate the lock on `isSystemDictionaryEnabled(settings)` — the same platform-aware check the annotator uses — so it matches real lookup behavior and never triggers where the system dictionary can't run.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(dictionary): dispatch system dictionary handoff by native OS (fixes iPad)
iPadOS sends a desktop "Macintosh" user agent, so the UA-based `getOSPlatform()` reported iPad as 'macos' and the handoff invoked the macOS-only `show_lookup_popover` Rust command that iOS never registers ("Command show_lookup_popover not found"). Derive the OS from the app service's `is*App` capability flags (sourced from the Tauri OS plugin, correct on iPad) via a new synchronous `getInitializedAppService()` accessor, so iPad routes to the iOS plugin command path.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(ui): constrain reader View Options dropdown to h-8
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* docs(agent): note System Dictionary platform-detection and synced-flag patterns
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The paginator's scrolled-mode scroll handler is debounced 250 ms, so
#anchor and #primaryIndex can lag behind the user's actual viewport.
Toggling out of scrolled mode within that window made
render() → scrollToAnchor(#anchor) restore the stale anchor, reverting
the position to a previously visible section.
Update foliate-js to flush the pending scroll state before flow leaves
'scrolled', and add regression coverage for the multi-section toggle path.
Huang Xin