[CHA-2563] Add retention policy integration tests

tests/Integration/ChatMiscIntegrationTest.php

@@ -640,6 +640,71 @@ public function channelBatchUpdate(): void
         self::markTestSkipped('ChannelBatchUpdate is not yet available in the generated SDK');
     }
 
+    // =========================================================================
+    // Retention Policy
+    // =========================================================================
+
+    /**
+     * @test
+     */
+    public function getRetentionPolicy(): void
+    {
+        $policyName = 'old-messages';
+
+        // Ensure a policy exists before querying
+        try {
+            $this->client->setRetentionPolicy(new GeneratedModels\SetRetentionPolicyRequest(
+                policy: $policyName,
+                maxAgeHours: 720,
+            ));
+        } catch (\Exception $e) {
+            if (str_contains($e->getMessage(), 'not enabled') || str_contains($e->getMessage(), 'retention')) {
+                self::markTestSkipped('Retention policies are not enabled for this app');
+            }
+
+            throw $e;
+        }
+
+        try {
+            $resp = $this->client->getRetentionPolicy();
+            $this->assertResponseSuccess($resp, 'get retention policy');
+            self::assertNotNull($resp->getData()->policies, 'Policies list should be returned');
+            self::assertNotEmpty($resp->getData()->policies, 'Should have at least one policy');
+        } catch (\Exception $e) {
+            if (str_contains($e->getMessage(), 'not enabled') || str_contains($e->getMessage(), 'retention')) {
+                self::markTestSkipped('Retention policies are not enabled for this app');
+            }
+
+            throw $e;
+        } finally {
+            // Clean up the policy we created
+            try {
+                $this->client->deleteRetentionPolicy(new GeneratedModels\DeleteRetentionPolicyRequest(
+                    policy: $policyName,
+                ));
+            } catch (\Exception $ignore) {
+            }
+        }
+    }
+
+    /**
+     * @test
+     */
+    public function getRetentionPolicyRuns(): void
+    {
+        try {
+            $resp = $this->client->getRetentionPolicyRuns(limit: 10, offset: 0);
+            $this->assertResponseSuccess($resp, 'get retention policy runs');
+            self::assertNotNull($resp->getData()->runs, 'Runs list should be returned');
+        } catch (\Exception $e) {
+            if (str_contains($e->getMessage(), 'not enabled') || str_contains($e->getMessage(), 'retention')) {
+                self::markTestSkipped('Retention policies are not enabled for this app');
+            }
+
+            throw $e;
+        }
+    }
+
     protected static function sharedUserCount(): int
     {
         return 2;