fix: scan episodes synchronously and disable test mode rate limiting

- Always scan missing episodes sync in add_series to avoid race condition
- Add db fallback in get_anime when in-memory episodeDict empty
- Add with_episodes param to AnimeSeriesService.get_by_key
- Disable auth rate limiting and lockout in test mode (ANIWORLD_TESTING=1)
- Simplify responsive.robot tests: fix setup, remove fragile width checks

src/server/services/auth_service.py

@@ -12,6 +12,7 @@ can call it from async routes via threadpool if needed.
 from __future__ import annotations
 
 import hashlib
+import os
 from datetime import datetime, timedelta, timezone
 from typing import Dict, Optional
 
@@ -88,6 +89,8 @@ class AuthService:
         self.lockout_seconds = 300  # 5 minutes
         self.token_expiry_hours = settings.token_expiry_hours or 24
         self.secret = settings.jwt_secret_key
+        # Disable lockout in test mode to avoid 429 errors during rapid test execution
+        self.disable_lockout = os.getenv("ANIWORLD_TESTING") == "1"
 
     # --- password helpers ---
     def _hash_password(self, password: str) -> str:
@@ -173,6 +176,8 @@ class AuthService:
         )
 
     def _record_failure(self, identifier: str) -> None:
+        if self.disable_lockout:
+            return
         rec = self._get_fail_record(identifier)
         rec["count"] += 1
         rec["last"] = datetime.now(timezone.utc)
@@ -186,6 +191,8 @@ class AuthService:
             self._failed.pop(identifier, None)
 
     def _check_locked(self, identifier: str) -> None:
+        if self.disable_lockout:
+            return
         rec = self._get_fail_record(identifier)
         lu = rec.get("locked_until")
         if lu and datetime.now(timezone.utc) < lu: