Release 2.3.0

A share can now hold a private text (a password, a key, a short note)
with its files or on its own. The upload page's new "Private text" card
takes up to 100 KB; the browser encrypts the text and sends it through
the same chunk pipeline as a file, flagged is_text on share_files, so it
gets the share's password, expiry, download limit and cleanup.

The recipient sees the text only after pressing "Show text", which
counts as their download, so a messenger link preview cannot use up a
share limited to one download. The text is left out of the file list,
the ZIP and the file counts; the admin dashboard marks shares that hold
one with "Text".

The website gains a Private text feature card and a fifth phone
screenshot; every screenshot is retaken.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/Feature/Admin/AdminDashboardTest.php

@@ -139,6 +139,18 @@ test('without shares the dashboard shows an empty state instead of the list', fu
         ->assertDontSee('data-test="share-row"', false);
 });
 
+test('the shares list excludes the private text from its file count and shows it separately', function () {
+    $admin = User::query()->where('is_admin', true)->first();
+    $share = Share::factory()->create(['token' => 'textshare00000001']);
+    ShareFile::factory()->count(2)->for($share)->create();
+    ShareFile::factory()->for($share)->text()->create();
+
+    Livewire::actingAs($admin)
+        ->test(AdminDashboard::class)
+        ->assertSeeInOrder(['textshare00000001', '2 files', 'Text'])
+        ->assertDontSee('3 files');
+});
+
 test('shares whose files are still uploading are neither listed nor counted, but their bytes count as used space', function () {
     $admin = User::query()->where('is_admin', true)->first();
     $completed = Share::factory()->create(['token' => 'completedshare01', 'total_size' => 1000]);