Add dynamic app shortcuts for top cards with overlay card view

[Claude]

Implements fast access to frequently-used cards via Android app shortcuts. Long-pressing the launcher icon reveals up to 4 cards based on the current sort mode, tapping a shortcut displays the card in a translucent overlay activity.

Implementation

ShortcutManager - Manages dynamic shortcuts for top 4 cards

• Sorts by current mode (intelligent/alphabetical/recent/most-used)
• Updates reactively when cards or sort order changes
• Uses ShortcutManagerCompat for API compatibility

CardShortcutActivity - Translucent overlay for single-card display

• Reuses existing ViewCardSheet composable
• Respects biometric settings, prompts for authentication when enabled
• Increments card usage counter on access
• Tap outside to dismiss

Integration - Added LaunchedEffect in CardListScreen

LaunchedEffect(cardsFiltered, sortBy) {
  sortBy?.let { currentSortBy ->
    ShortcutManager.updateShortcuts(currentContext, cardsFiltered, currentSortBy)
  }
}

Files Changed

• ShortcutManager.kt (new) - Shortcut management logic
• CardShortcutActivity.kt (new) - Overlay activity
• AndroidManifest.xml - Register CardShortcutActivity with translucent theme, singleInstance mode
• CardListScreen.kt - Reactive shortcut updates

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Add App Shortcuts for Top Cards and Overlay Card View</issue_title>
<issue_description>## Overview
Introduce two features for fast card access:

1. App Shortcuts for Top Cards

   • Dynamic app shortcuts representing the most relevant cards (top results according to the last sorting mode).
   • Users should see their most-used or recently-accessed cards directly in the app shortcuts menu (on long-press of the launcher icon).
   • Clicking the shortcut should open the overlay created in step 2

2. Custom Overlay Activity for Cards

   • Shortcuts should launch a new secondary activity that overlays the homescreen, styled as a bottom sheet (maybe reuse ViewCardSheet).
   • The overlay should display only the selected card details (not the main app UI).
   • Show the card content in a focused, scannable sheet.
   • If fingerprint/biometric protection is enabled in settings, the overlay activity should require authentication before revealing card contents.

Acceptance Criteria

• Dynamic app shortcuts update based on current sort mode and card usage.
• Tapping a shortcut launches a dedicated bottom-sheet style activity with just the card view.
• Overlay activity should dismiss easily (tap outside or swipe down).
• Respect fingerprint/biometric security settings before showing card content.</issue_description>

Comments on the Issue (you are @claude[agent] in this section)

• Fixes Add App Shortcuts for Top Cards and Overlay Card View #75

[pawcoding]

Closing in favor of:

• feat(shortcuts): add app shortcuts and pin-to-home-screen #79