fix(frontend): align project types with backend enums

- Fix ProjectStatus: use 'active' instead of 'in_progress'
- Fix AgentStatus: remove 'active'/'pending'/'error', add 'waiting'
- Fix SprintStatus: add 'in_review'
- Rename IssueSummary to IssueCountSummary
- Update all components to use correct enum values

frontend/src/components/projects/AgentStatusIndicator.tsx

@@ -14,21 +14,17 @@ const statusConfig: Record<AgentStatus, { color: string; label: string }> = {
     color: 'bg-yellow-500',
     label: 'Idle',
   },
-  active: {
-    color: 'bg-green-500',
-    label: 'Active',
-  },
   working: {
     color: 'bg-green-500 animate-pulse',
     label: 'Working',
   },
-  pending: {
-    color: 'bg-gray-400',
-    label: 'Pending',
+  waiting: {
+    color: 'bg-blue-500',
+    label: 'Waiting',
   },
-  error: {
-    color: 'bg-red-500',
-    label: 'Error',
+  paused: {
+    color: 'bg-gray-400',
+    label: 'Paused',
   },
   terminated: {
     color: 'bg-gray-600',
@@ -49,7 +45,7 @@ export function AgentStatusIndicator({
   showLabel = false,
   className,
 }: AgentStatusIndicatorProps) {
-  const config = statusConfig[status] || statusConfig.pending;
+  const config = statusConfig[status] || statusConfig.idle;
 
   const sizeClasses = {
     sm: 'h-2 w-2',