refactor: single EventPresenter and ManualEvents shared by /api, /me, inbox, webhook; editable flag

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BCrwHHnGCB5XH968Nxokqw

core/tests/Feature/EventPresentationTest.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Enums\AfterDue;
+use App\Enums\DueMode;
+use App\Enums\EventState;
+use App\Models\Event;
+use App\Models\Source;
+use App\Models\User;
+use Carbon\CarbonImmutable;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class EventPresentationTest extends TestCase
+{
+    use RefreshDatabase;
+
+    private array $as = ['X-Remote-User' => 'nikita'];
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        config(['hado.default_tz' => 'UTC']);
+        CarbonImmutable::setTestNow('2026-09-05T12:00:00Z');
+    }
+
+    protected function tearDown(): void
+    {
+        CarbonImmutable::setTestNow();
+        parent::tearDown();
+    }
+
+    public function test_user_facing_events_say_whether_they_are_editable(): void
+    {
+        $this->getJson('/me', $this->as);
+        $user = User::sole();
+        $docs = Source::create(['name' => 'docs', 'token_hash' => hash('sha256', 'x')]);
+        Event::create([
+            'source_id' => $docs->id, 'user_id' => $user->id, 'source_ref' => 'person:1', 'topic' => 'bd',
+            'due_mode' => DueMode::Local, 'due_date' => '2026-09-05', 'due_time' => '24:00:00', 'fire_on' => '2026-09-05',
+            'after_due' => AfterDue::Keep, 'payload' => ['title' => 'ДР'], 'state' => EventState::Today,
+            'quiet_until' => CarbonImmutable::now()->subDay(),
+        ]);
+
+        $this->postJson('/me/events', ['title' => 'Своё', 'due_date' => '2026-10-01'], $this->as)
+            ->assertCreated()->assertJsonPath('editable', true);
+
+        $bySource = collect($this->getJson('/me/events', $this->as)->assertOk()->json('events'))->keyBy('source');
+        $this->assertFalse($bySource['docs']['editable']);
+        $this->assertTrue($bySource['manual']['editable']);
+    }
+}