test(jobs): add controller and model test coverage

Add PHPUnit tests for Jobs feature to lock in current
behavior before further changes.

- JobsControllerTest: covers /jobs index render, saveSettings
  validation (invalid mode, non-natural max_seconds) and
  success path, saveThrottles save/soft-delete-missing/invalid
  period handling, throttles partial render, and stub
  processAllJobs/processSelectedJobs endpoints
- JobThrottleModelTest: covers exists(), saveValue() insert vs
  update, getAll() excluding soft-deleted rows, and delete()
  soft-delete behavior

Signed-off-by: objecttothis <17935339+objecttothis@users.noreply.github.com>

tests/Models/JobThrottleModelTest.php

@@ -0,0 +1,92 @@
+<?php
+
+namespace Tests\Models;
+
+use App\Models\JobThrottle;
+use CodeIgniter\Database\Config;
+use CodeIgniter\Test\CIUnitTestCase;
+use CodeIgniter\Test\DatabaseTestTrait;
+
+class JobThrottleModelTest extends CIUnitTestCase
+{
+    use DatabaseTestTrait;
+
+    protected $migrate = true;
+    protected $migrateOnce = true;
+    protected $refresh = false;
+    protected $namespace = null;
+
+    private static bool $doneBootstrap = false;
+
+    protected JobThrottle $jobThrottle;
+
+    protected function setUp(): void
+    {
+        if (self::$doneBootstrap === false) {
+            Config::seeder($this->DBGroup)->call('App\Database\Seeds\TestDatabaseBootstrapSeeder');
+            Config::connect($this->DBGroup)->close();
+
+            self::$doneBootstrap = true;
+        }
+
+        parent::setUp();
+
+        $this->jobThrottle = model(JobThrottle::class);
+        $this->db->table('job_throttles')->truncate();
+    }
+
+    public function testExistsReturnsFalseForUnknownId(): void
+    {
+        $this->assertFalse($this->jobThrottle->exists(999999));
+    }
+
+    public function testSaveValueInsertsWhenThrottleDoesNotExist(): void
+    {
+        $this->assertTrue($this->jobThrottle->saveValue(['max_count' => 10, 'period' => 'hour'], 1));
+
+        $this->seeInDatabase('job_throttles', [
+            'throttle_id' => 1,
+            'max_count'   => 10,
+            'period'      => 'hour',
+            'deleted'     => 0,
+        ]);
+    }
+
+    public function testSaveValueUpdatesWhenThrottleExists(): void
+    {
+        $this->jobThrottle->saveValue(['max_count' => 10, 'period' => 'hour'], 1);
+        $this->assertTrue($this->jobThrottle->exists(1));
+
+        $this->assertTrue($this->jobThrottle->saveValue(['max_count' => 25, 'period' => 'day'], 1));
+
+        $this->seeInDatabase('job_throttles', [
+            'throttle_id' => 1,
+            'max_count'   => 25,
+            'period'      => 'day',
+        ]);
+
+        $this->assertEquals(1, $this->db->table('job_throttles')->countAllResults());
+    }
+
+    public function testGetAllExcludesDeletedThrottles(): void
+    {
+        $this->jobThrottle->saveValue(['max_count' => 5, 'period' => 'minute'], 1);
+        $this->jobThrottle->saveValue(['max_count' => 15, 'period' => 'day'], 2);
+        $this->jobThrottle->delete(2);
+
+        $results = $this->jobThrottle->getAll()->getResultArray();
+
+        $this->assertCount(1, $results);
+        $this->assertSame('1', (string) $results[0]['throttle_id']);
+    }
+
+    public function testDeleteSoftDeletesThrottle(): void
+    {
+        $this->jobThrottle->saveValue(['max_count' => 5, 'period' => 'minute'], 1);
+
+        $this->assertTrue($this->jobThrottle->delete(1));
+
+        $this->seeInDatabase('job_throttles', ['throttle_id' => 1, 'deleted' => 1]);
+        $this->assertCount(0, $this->jobThrottle->getAll()->getResultArray());
+    }
+}