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

queue_jobs.py

@@ -30,6 +30,7 @@ from app_support import (
     now_iso,
     printable_command,
     send_discord_webhook_event,
+    sh_quote,
     strip_control,
 )
 
@@ -1346,6 +1347,18 @@ class DownloadQueue:
             attempts.append(("anikoto-cli", lambda job: command_for_job(job, downloader="anikoto-cli")))
         return attempts
 
+    def _attempt_env(self, base_env, job, downloader_name):
+        attempt_env = dict(base_env)
+        if downloader_name == "anikoto-cli":
+            query = str(job.get("query") or job.get("title") or "").strip()
+            if query:
+                # Force fzf into non-interactive exact-match mode so backup downloads
+                # can auto-select the intended anime inside the queue worker.
+                attempt_env["FZF_DEFAULT_OPTS"] = (
+                    f"--exact --filter={sh_quote(query)} --select-1 --exit-0"
+                )
+        return attempt_env
+
     def _fail_job_startup(self, job, exc):
         message = f"Could not start download: {exc}"
         with self.lock:
@@ -1455,10 +1468,11 @@ class DownloadQueue:
                 self._append_log(job, f"Launching {downloader_name}: {job['command']}")
 
                 try:
+                    attempt_env = self._attempt_env(env, job, downloader_name)
                     process = subprocess.Popen(
                         command,
                         cwd=str(PROJECT_ROOT),
-                        env=env,
+                        env=attempt_env,
                         stdout=subprocess.PIPE,
                         stderr=subprocess.STDOUT,
                         text=True,