docs: drop comments that narrate the next line

- about seventy '# Create/Initialize/Add ...' lines across graph, cli and dataflows, and the file-path headers; comments that give a reason stay

cli/prompts.py

@@ -140,7 +140,6 @@ def select_analysts(asset_type: AssetType = AssetType.STOCK, default=None) -> li
 def select_research_depth(default=None) -> int:
     """Select research depth using an interactive selection."""
 
-    # Define research depth options with their corresponding values
     DEPTH_OPTIONS = [
         ("Shallow - Quick research, few debate and strategy discussion rounds", 1),
         ("Medium - Middle ground, moderate debate rounds and strategy discussion", 3),