feat: implement work mode selection in feature dialogs

- Added WorkModeSelector component to allow users to choose between 'current', 'auto', and 'custom' work modes for feature management.
- Updated AddFeatureDialog and EditFeatureDialog to utilize the new work mode functionality, replacing the previous branch selector logic.
- Enhanced useBoardActions hook to handle branch name generation based on the selected work mode.
- Adjusted settings to default to using worktrees, improving the overall feature creation experience.

These changes streamline the feature management process by providing clearer options for branch handling and worktree isolation.

apps/ui/src/components/views/board-view/hooks/use-board-actions.ts

@@ -111,14 +111,32 @@ export function useBoardActions({
       planningMode: PlanningMode;
       requirePlanApproval: boolean;
       dependencies?: string[];
+      workMode?: 'current' | 'auto' | 'custom';
     }) => {
-      // Empty string means "unassigned" (show only on primary worktree) - convert to undefined
-      // Non-empty string is the actual branch name (for non-primary worktrees)
-      const finalBranchName = featureData.branchName || undefined;
+      const workMode = featureData.workMode || 'current';
 
-      // If worktrees enabled and a branch is specified, create the worktree now
-      // This ensures the worktree exists before the feature starts
-      if (useWorktrees && finalBranchName && currentProject) {
+      // Determine final branch name based on work mode:
+      // - 'current': No branch name, work on current branch (no worktree)
+      // - 'auto': Auto-generate branch name based on current branch
+      // - 'custom': Use the provided branch name
+      let finalBranchName: string | undefined;
+
+      if (workMode === 'current') {
+        // No worktree isolation - work directly on current branch
+        finalBranchName = undefined;
+      } else if (workMode === 'auto') {
+        // Auto-generate a branch name based on current branch and timestamp
+        const baseBranch = currentWorktreeBranch || 'main';
+        const timestamp = Date.now();
+        const randomSuffix = Math.random().toString(36).substring(2, 6);
+        finalBranchName = `feature/${baseBranch}-${timestamp}-${randomSuffix}`;
+      } else {
+        // Custom mode - use provided branch name
+        finalBranchName = featureData.branchName || undefined;
+      }
+
+      // Create worktree for 'auto' or 'custom' modes when we have a branch name
+      if ((workMode === 'auto' || workMode === 'custom') && finalBranchName && currentProject) {
         try {
           const api = getElectronAPI();
           if (api?.worktree?.create) {
@@ -207,10 +225,10 @@ export function useBoardActions({
       persistFeatureUpdate,
       updateFeature,
       saveCategory,
-      useWorktrees,
       currentProject,
       onWorktreeCreated,
       onWorktreeAutoSelect,
+      currentWorktreeBranch,
     ]
   );
 
@@ -230,15 +248,29 @@ export function useBoardActions({
         priority: number;
         planningMode?: PlanningMode;
         requirePlanApproval?: boolean;
+        workMode?: 'current' | 'auto' | 'custom';
       },
       descriptionHistorySource?: 'enhance' | 'edit',
       enhancementMode?: 'improve' | 'technical' | 'simplify' | 'acceptance'
     ) => {
-      const finalBranchName = updates.branchName || undefined;
+      const workMode = updates.workMode || 'current';
 
-      // If worktrees enabled and a branch is specified, create the worktree now
-      // This ensures the worktree exists before the feature starts
-      if (useWorktrees && finalBranchName && currentProject) {
+      // Determine final branch name based on work mode
+      let finalBranchName: string | undefined;
+
+      if (workMode === 'current') {
+        finalBranchName = undefined;
+      } else if (workMode === 'auto') {
+        const baseBranch = currentWorktreeBranch || 'main';
+        const timestamp = Date.now();
+        const randomSuffix = Math.random().toString(36).substring(2, 6);
+        finalBranchName = `feature/${baseBranch}-${timestamp}-${randomSuffix}`;
+      } else {
+        finalBranchName = updates.branchName || undefined;
+      }
+
+      // Create worktree for 'auto' or 'custom' modes when we have a branch name
+      if ((workMode === 'auto' || workMode === 'custom') && finalBranchName && currentProject) {
         try {
           const api = getElectronAPI();
           if (api?.worktree?.create) {
@@ -287,9 +319,9 @@ export function useBoardActions({
       persistFeatureUpdate,
       saveCategory,
       setEditingFeature,
-      useWorktrees,
       currentProject,
       onWorktreeCreated,
+      currentWorktreeBranch,
     ]
   );