chore: remove dead code from gui.py, fix burn_only.py compatibility

burn_only.py

@@ -4,19 +4,18 @@
 直接用已有的 clips + title.srt + content.srt 合并烧录
 
 用法:
-    python burn_only.py
     python burn_only.py "D:\\path\\to\\output_dir"
 """
 import sys
 import os
 
-# 导入统一配置
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-import config
+# 必须指定输出目录
+if len(sys.argv) < 2:
+    print("用法: python burn_only.py <output_dir>")
+    print("示例: python burn_only.py \"D:\\path\\to\\output_dir\"")
+    sys.exit(1)
 
-OUTPUT = config.OUTPUT
-if len(sys.argv) > 1:
-    OUTPUT = sys.argv[1]
+OUTPUT = sys.argv[1]
 
 TITLE_SRT = os.path.join(OUTPUT, "subs", "v1_title.srt")
 CONTENT_SRT = os.path.join(OUTPUT, "subs", "v1_content.srt")
@@ -40,16 +39,24 @@ src_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), "src")
 sys.path.insert(0, src_dir)
 from core import Pipeline
 
-# 构造 minimal config（只需要 output_dir 和 video_params）
-pipeline_config = {
-    'output_dir': OUTPUT,
-    'clips': [],
-    'video_src': None,
-    'video_params': {},
-    'term_corrections': {},
-    'api_key': '',
-    'api_host': '',
-}
+# 尝试从 generated_config.yaml 加载配置
+config_path = os.path.join(OUTPUT, 'generated_config.yaml')
+if os.path.exists(config_path):
+    import yaml
+    with open(config_path, 'r', encoding='utf-8') as f:
+        pipeline_config = yaml.safe_load(f) or {}
+    pipeline_config['output_dir'] = OUTPUT
+else:
+    # 构造 minimal config
+    pipeline_config = {
+        'output_dir': OUTPUT,
+        'clips': [],
+        'video_src': None,
+        'video_params': {},
+        'term_corrections': {},
+        'api_key': '',
+        'api_host': '',
+    }
 
 pipeline = Pipeline(pipeline_config)