feat(12-02): update CLI processor registration

- Import SRTProcessor from processors module
- Add SRTProcessor to processors list
- Update PipelineConfig.steps to include 'srt' step
- Pipeline will select SRTProcessor or AnalyzeProcessor based on platform

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

kb_workflow/cli.py

@@ -49,7 +49,7 @@ def process_command(
         from .pipeline.pipeline import Pipeline
         from .pipeline.processors import (
             ASRProcessor, AnalyzeProcessor, ArchiveProcessor,
-            DownloadProcessor, ParseProcessor
+            DownloadProcessor, ParseProcessor, SRTProcessor
         )
         from .pipeline.schemas import PipelineConfig
 
@@ -63,13 +63,14 @@ def process_command(
                 ParseProcessor(),
                 DownloadProcessor(),
                 ASRProcessor(),
-                AnalyzeProcessor(),
+                SRTProcessor(),      # B站视频使用
+                AnalyzeProcessor(),  # 知乎/文章使用
                 ArchiveProcessor(),
             ]
 
             # Create pipeline config
             config = PipelineConfig(
-                steps=["parse", "download", "asr", "analyze", "archive"],
+                steps=["parse", "download", "asr", "srt", "analyze", "archive"],
                 output_dir=out_dir,
                 skip_completed=skip_completed,
             )