fix: 图生视频节点进度解析兼容百分号格式，K26/K3/Seedance统一走cf-api异步接口，K26新增seed参数

- 修复 K_video_image2video.py 进度值 "10%" 解析报错：rstrip('%') 后 float→int 安全转换
- K26 节点拆分为图生视频/首尾帧两个独立节点，删除旧的合并节点 K_video.py
- K26/K3 视频节点及 Seedance 客户端统一改用 get_async_api_base_url (cf-api.o1key.com)
- K3 节点模式选项从 标准/专家 改为 720p/1080p，与后端一致
- K_video_image2video.py 和 K_video_firstlast.py 新增 ComfyUI 原生 seed 参数

Co-Authored-By: Claude Opus 4.6 <[email protected]>

__init__.py

@@ -12,7 +12,7 @@ Comfyui_o1key - ComfyUI 自定义节点集合
 
 import ssl
 
-from .nodes import NanoBananaPro, BatchNanoBananaPro, GoogleGemini, LoadFile, ImageStitchPro, SaveCleanImage, BatchCleanMetadata, VideoPreview, GoogleVeo, FluxImageEdit, UniversalLLMChat, KlingVideo, KlingFirstLastFrame, KlingMotionControlTest, AspectRatioPreset, MultiResPreview, BatchImagesO1key, Seedance, SeedanceMultiModal, StreamPreview, DoubaoImage, O1keyGPTImage, KVideo
+from .nodes import NanoBananaPro, BatchNanoBananaPro, GoogleGemini, LoadFile, ImageStitchPro, SaveCleanImage, BatchCleanMetadata, VideoPreview, GoogleVeo, FluxImageEdit, UniversalLLMChat, KlingVideo, KlingFirstLastFrame, KlingMotionControlTest, AspectRatioPreset, MultiResPreview, BatchImagesO1key, Seedance, SeedanceMultiModal, StreamPreview, DoubaoImage, O1keyGPTImage, KVideoFirstLast, KVideoImage2Video
 from .nodes import K3Video, K3VideoFirstLast, K3MotionControl, K3MotionVideoCheck, NanoBananaV2, NanoBananaV2Batch
 
 # 报错弹框友好文案（不修改原节点代码，仅在外层统一处理）
@@ -74,7 +74,8 @@ NODE_CLASS_MAPPINGS = {
     "StreamPreview": StreamPreview,
     "DoubaoImage": DoubaoImage,
     "O1keyGPTImage": O1keyGPTImage,
-    "KVideo": KVideo,
+    "KVideoFirstLast": KVideoFirstLast,
+    "KVideoImage2Video": KVideoImage2Video,
     "K3Video": K3Video,
     "K3VideoFirstLast": K3VideoFirstLast,
     "K3MotionControl": K3MotionControl,
@@ -106,7 +107,8 @@ NODE_DISPLAY_NAME_MAPPINGS = {
     "StreamPreview": "流式文本预览",
     "DoubaoImage": "豆包生图",
     "O1keyGPTImage": "o1key GPT Image",
-    "KVideo": "K26 图生视频",
+    "KVideoFirstLast": "K26 图生视频（首尾帧）",
+    "KVideoImage2Video": "K26 图生视频",
     "K3Video": "K3 图生视频 自研",
     "K3VideoFirstLast": "首尾帧 K3 自研",
     "K3MotionControl": "动作控制 K3 自研",