feat: add experimental support for AST parsing and static graph indexing

- Introduced CLI options for using AST grep parsers and enabling static graph relationships during indexing.
- Updated configuration management to load new settings for AST parsing and static graph types.
- Enhanced AST grep processor to handle imports with aliases and improve relationship tracking.
- Modified TreeSitter parsers to support synthetic module scopes for better static graph persistence.
- Implemented global relationship updates in the incremental indexer for static graph expansion.
- Added new ArtifactTag and FloatingFileBrowser components to the frontend for improved terminal dashboard functionality.
- Created utility functions for detecting CCW artifacts in terminal output with associated tests.

ccw/frontend/src/components/dashboard/widgets/WorkflowTaskWidget.tsx

@@ -704,7 +704,7 @@ function WorkflowTaskWidgetComponent({ className }: WorkflowTaskWidgetProps) {
                       const isLastOdd = currentSession.tasks!.length % 2 === 1 && index === currentSession.tasks!.length - 1;
                       return (
                         <div
-                          key={`${currentSession.session_id}-${task.task_id}`}
+                          key={`${currentSession.session_id}-${task.task_id}-${index}`}
                           className={cn(
                             'flex items-center gap-2 p-2 rounded hover:bg-background/50 transition-colors',
                             isLastOdd && 'col-span-2'