Fix cfg-before-assignment; move expected_svg debug block

wai_service.py

@@ -46,14 +46,6 @@ def handler(payload: dict) -> str:
         os.makedirs(init_dir, exist_ok=True)
         logging.warning("Created missing directory %s", init_dir)
 
-    # The SVG path that preprocessing expects
-    expected_svg = os.path.join(
-        "code", "data", "init",
-        f"{cfg.font}_{cfg.optimized_letter}_scaled.svg"
-    )
-    if not os.path.exists(expected_svg):
-        logging.warning("Expected seed SVG not found: %s (will be generated)", expected_svg)
-
 
     tmp_token_path = None                           # ➋
     if "token" in payload:
@@ -81,6 +73,14 @@ def handler(payload: dict) -> str:
             os.unlink(tmp_token_path.name) # remove temp file
 
     _sanitize(cfg)
+    
+        # The SVG path that preprocessing expects
+    expected_svg = os.path.join(
+        "code", "data", "init",
+        f"{cfg.font}_{cfg.optimized_letter}_scaled.svg"
+    )
+    if not os.path.exists(expected_svg):
+        logging.warning("Expected seed SVG not found: %s (will be generated)", expected_svg)
 
     # 2️⃣  Overlay ALL payload keys (new ones like render_size stick)
     for k, v in payload.items():