Refactor: Remove obsolete TDD coverage analysis, test concept enhancement, context gathering, and task generation commands

- Deleted the following command files:
  - tdd-coverage-analysis.md
  - test-concept-enhanced.md
  - test-context-gather.md
  - test-task-generate.md

Enhancement: Update FloatingPanel component styles

- Adjusted FloatingPanel backdrop styles for improved layout
- Modified height calculation to utilize full viewport height below the toolbar

ccw/frontend/src/components/cli-viewer/LayoutContainer.tsx

@@ -3,7 +3,7 @@
 // ========================================
 // Manages allotment-based split panes for CLI viewer
 
-import { useCallback, useMemo } from 'react';
+import { useCallback, useMemo, useRef, useEffect } from 'react';
 import { Allotment } from 'allotment';
 import 'allotment/dist/style.css';
 import { cn } from '@/lib/utils';
@@ -105,14 +105,46 @@ function LayoutGroupRenderer({ group, minSize, onSizeChange }: LayoutGroupRender
 export function LayoutContainer({ className }: LayoutContainerProps) {
   const layout = useViewerLayout();
   const panes = useViewerPanes();
-  const setLayout = useViewerStore((state) => state.setLayout);
 
+  // Use ref to track if we're currently updating to prevent infinite loops
+  const isUpdatingRef = useRef(false);
+  // Track previous sizes to avoid unnecessary updates
+  const prevSizesRef = useRef<number[] | undefined>(layout.sizes);
+
+  // Update prevSizesRef when layout.sizes changes from external sources
+  useEffect(() => {
+    if (!isUpdatingRef.current) {
+      prevSizesRef.current = layout.sizes;
+    }
+  }, [layout.sizes]);
+
+  // Stable callback with no dependencies - prevents Allotment onChange infinite loop
   const handleSizeChange = useCallback(
     (sizes: number[]) => {
-      // Update the root layout with new sizes
-      setLayout({ ...layout, sizes });
+      // Skip if sizes haven't actually changed (compare by value)
+      if (
+        prevSizesRef.current &&
+        sizes.length === prevSizesRef.current.length &&
+        sizes.every((s, i) => Math.abs(s - prevSizesRef.current![i]) < 0.1)
+      ) {
+        return;
+      }
+
+      // Use functional update to avoid dependency on layout
+      isUpdatingRef.current = true;
+      prevSizesRef.current = sizes;
+
+      useViewerStore.getState().setLayout((prev) => ({
+        ...prev,
+        sizes,
+      }));
+
+      // Reset updating flag after a microtask
+      queueMicrotask(() => {
+        isUpdatingRef.current = false;
+      });
     },
-    [layout, setLayout]
+    [] // No dependencies - uses getState() and refs to prevent infinite loops
   );
 
   // Render based on layout type

ccw/frontend/src/components/terminal-dashboard/FloatingPanel.tsx

@@ -53,10 +53,10 @@ export function FloatingPanel({
       {/* Backdrop */}
       <div
         className={cn(
-          'fixed inset-0 z-40 transition-opacity duration-200',
+          'fixed z-40 transition-opacity duration-200',
           isOpen ? 'opacity-100 pointer-events-auto' : 'opacity-0 pointer-events-none'
         )}
-        style={{ top: '40px' }} // Below toolbar
+        style={{ top: '40px', bottom: 0, left: 0, right: 0 }}
         onClick={handleBackdropClick}
       >
         <div className="absolute inset-0 bg-black/20" />
@@ -76,7 +76,7 @@ export function FloatingPanel({
         )}
         style={{
           top: '40px', // Below toolbar
-          height: 'calc(100vh - 56px - 40px)', // Subtract both app header and toolbar
+          height: 'calc(100vh - 40px)', // Full height below toolbar
           width: `${width}px`,
         }}
       >

ccw/frontend/src/stores/viewerStore.ts

@@ -73,7 +73,7 @@ export interface ViewerState {
   nextTabIdCounter: number;
 
   // Actions
-  setLayout: (newLayout: AllotmentLayout) => void;
+  setLayout: (newLayout: AllotmentLayout | ((prev: AllotmentLayout) => AllotmentLayout)) => void;
   addPane: (parentPaneId?: PaneId, direction?: 'horizontal' | 'vertical') => PaneId;
   removePane: (paneId: PaneId) => void;
   addTab: (paneId: PaneId, executionId: CliExecutionId, title: string) => TabId;
@@ -373,8 +373,14 @@ export const useViewerStore = create<ViewerState>()(
 
         // ========== Layout Actions ==========
 
-        setLayout: (newLayout: AllotmentLayout) => {
-          set({ layout: newLayout }, false, 'viewer/setLayout');
+        setLayout: (newLayout: AllotmentLayout | ((prev: AllotmentLayout) => AllotmentLayout)) => {
+          if (typeof newLayout === 'function') {
+            const currentLayout = get().layout;
+            const result = newLayout(currentLayout);
+            set({ layout: result }, false, 'viewer/setLayout');
+          } else {
+            set({ layout: newLayout }, false, 'viewer/setLayout');
+          }
         },
 
         addPane: (parentPaneId?: PaneId, direction: 'horizontal' | 'vertical' = 'horizontal') => {