Fix non-interactive anikoto backup downloads

- force anikoto-cli backup runs to auto-select the queued anime title through fzf filter options
- add a regression test for the backup retry environment
- bump the project version to 0.46.3 and document the fix in the changelog and README

test_app.py

@@ -695,7 +695,15 @@ class DownloadQueueWorkerFailureTests(unittest.TestCase):
             def wait(self):
                 return 0
 
-        with mock.patch.object(queue_jobs.subprocess, "Popen", side_effect=[FailedProc(), SuccessProc()]), mock.patch.object(
+        popen_calls = []
+
+        def fake_popen(command, **kwargs):
+            popen_calls.append({"command": command, "env": dict(kwargs.get("env") or {})})
+            if len(popen_calls) == 1:
+                return FailedProc()
+            return SuccessProc()
+
+        with mock.patch.object(queue_jobs.subprocess, "Popen", side_effect=fake_popen), mock.patch.object(
             queue, "_command_available", return_value=True
         ), mock.patch.object(
             queue_jobs, "finalize_library_files", return_value=["/tmp/example/tv/Queue Show/Season 01/Queue Show - S01E01.mp4"]
@@ -708,6 +716,11 @@ class DownloadQueueWorkerFailureTests(unittest.TestCase):
         self.assertIn("Retrying with backup downloader: anikoto-cli.", log_text)
         self.assertIn("anikoto-cli does not support ani-cli quality flags", log_text)
         self.assertIn("Download completed.", log_text)
+        self.assertEqual(len(popen_calls), 2)
+        self.assertNotIn("FZF_DEFAULT_OPTS", popen_calls[0]["env"])
+        self.assertIn("--exact", popen_calls[1]["env"]["FZF_DEFAULT_OPTS"])
+        self.assertIn("--select-1", popen_calls[1]["env"]["FZF_DEFAULT_OPTS"])
+        self.assertIn("Queue Show", popen_calls[1]["env"]["FZF_DEFAULT_OPTS"])
 
     def test_run_job_marks_post_start_exception_failed_without_killing_worker_state(self):
         queue = APP.DownloadQueue(lambda: {"mode": "sub", "quality": "best", "download_dir": "/tmp/example"}, start_worker=False)