feat: Add quick search to EntityGrid with date-based contact sorting

- Add search-as-you-type functionality with 500ms debounce
- Implement search across contact names and DIDs, project names and handleIds
- Add loading spinner and dynamic clear button
- Add $contactsByDateAdded() method to PlatformServiceMixin for newest-first sorting
- Update GiftedDialog to use date-based contact ordering
- Maintain backward compatibility with existing $contacts() alphabetical sorting
- Add proper cleanup for search timeouts on component unmount

The search feature provides real-time filtering with visual feedback,
while the new sorting ensures recently added contacts appear first.

src/utils/PlatformServiceMixin.ts

@@ -970,6 +970,20 @@ export const PlatformServiceMixin = {
       return this.$normalizeContacts(rawContacts);
     },
 
+    /**
+     * Load all contacts sorted by when they were added (by ID)
+     * Always fetches fresh data from database for consistency
+     * Handles JSON string/object duality for contactMethods field
+     * @returns Promise<Contact[]> Array of normalized contact objects sorted by addition date (newest first)
+     */
+    async $contactsByDateAdded(): Promise<Contact[]> {
+      const rawContacts = (await this.$query(
+        "SELECT * FROM contacts ORDER BY id DESC",
+      )) as ContactMaybeWithJsonStrings[];
+
+      return this.$normalizeContacts(rawContacts);
+    },
+
     /**
      * Ultra-concise shortcut for getting number of contacts
      * @returns Promise<number> Total number of contacts
@@ -2057,6 +2071,7 @@ declare module "@vue/runtime-core" {
 
     // Specialized shortcuts - contacts cached, settings fresh
     $contacts(): Promise<Contact[]>;
+    $contactsByDateAdded(): Promise<Contact[]>;
     $contactCount(): Promise<number>;
     $settings(defaults?: Settings): Promise<Settings>;
     $accountSettings(did?: string, defaults?: Settings): Promise<Settings>;