feat: implement pipeline feature for automated workflow steps

- Introduced a new pipeline service to manage custom workflow steps that execute after a feature is marked "In Progress".
- Added API endpoints for configuring, saving, adding, updating, deleting, and reordering pipeline steps.
- Enhanced the UI to support pipeline settings, including a dialog for managing steps and integration with the Kanban board.
- Updated the application state management to handle pipeline configurations per project.
- Implemented dynamic column generation in the Kanban board to display pipeline steps between "In Progress" and "Waiting Approval".
- Added documentation for the new pipeline feature, including usage instructions and configuration details.

This feature allows for a more structured workflow, enabling automated processes such as code reviews and testing after feature implementation.

apps/ui/src/components/views/board-view.tsx

@@ -8,6 +8,7 @@ import {
 } from '@dnd-kit/core';
 import { useAppStore, Feature } from '@/store/app-store';
 import { getElectronAPI } from '@/lib/electron';
+import { getHttpApiClient } from '@/lib/http-api-client';
 import type { AutoModeEvent } from '@/types/electron';
 import type { BacklogPlanResult } from '@automaker/types';
 import { pathsEqual } from '@/lib/utils';
@@ -36,6 +37,7 @@ import {
   FollowUpDialog,
   PlanApprovalDialog,
 } from './board-view/dialogs';
+import { PipelineSettingsDialog } from './board-view/dialogs/pipeline-settings-dialog';
 import { CreateWorktreeDialog } from './board-view/dialogs/create-worktree-dialog';
 import { DeleteWorktreeDialog } from './board-view/dialogs/delete-worktree-dialog';
 import { CommitWorktreeDialog } from './board-view/dialogs/commit-worktree-dialog';
@@ -85,7 +87,10 @@ export function BoardView() {
     enableDependencyBlocking,
     isPrimaryWorktreeBranch,
     getPrimaryWorktreeBranch,
+    setPipelineConfig,
   } = useAppStore();
+  // Subscribe to pipelineConfigByProject to trigger re-renders when it changes
+  const pipelineConfigByProject = useAppStore((state) => state.pipelineConfigByProject);
   const shortcuts = useKeyboardShortcutsConfig();
   const {
     features: hookFeatures,
@@ -130,6 +135,9 @@ export function BoardView() {
   const [pendingBacklogPlan, setPendingBacklogPlan] = useState<BacklogPlanResult | null>(null);
   const [isGeneratingPlan, setIsGeneratingPlan] = useState(false);
 
+  // Pipeline settings dialog state
+  const [showPipelineSettings, setShowPipelineSettings] = useState(false);
+
   // Follow-up state hook
   const {
     showFollowUpDialog,
@@ -201,6 +209,25 @@ export function BoardView() {
     setFeaturesWithContext,
   });
 
+  // Load pipeline config when project changes
+  useEffect(() => {
+    if (!currentProject?.path) return;
+
+    const loadPipelineConfig = async () => {
+      try {
+        const api = getHttpApiClient();
+        const result = await api.pipeline.getConfig(currentProject.path);
+        if (result.success && result.config) {
+          setPipelineConfig(currentProject.path, result.config);
+        }
+      } catch (error) {
+        console.error('[Board] Failed to load pipeline config:', error);
+      }
+    };
+
+    loadPipelineConfig();
+  }, [currentProject?.path, setPipelineConfig]);
+
   // Auto mode hook
   const autoMode = useAutoMode();
   // Get runningTasks from the hook (scoped to current project)
@@ -1094,6 +1121,10 @@ export function BoardView() {
             onShowSuggestions={() => setShowSuggestionsDialog(true)}
             suggestionsCount={suggestionsCount}
             onArchiveAllVerified={() => setShowArchiveAllVerifiedDialog(true)}
+            pipelineConfig={
+              currentProject?.path ? pipelineConfigByProject[currentProject.path] || null : null
+            }
+            onOpenPipelineSettings={() => setShowPipelineSettings(true)}
           />
         ) : (
           <GraphView
@@ -1206,6 +1237,22 @@ export function BoardView() {
         }}
       />
 
+      {/* Pipeline Settings Dialog */}
+      <PipelineSettingsDialog
+        open={showPipelineSettings}
+        onClose={() => setShowPipelineSettings(false)}
+        projectPath={currentProject.path}
+        pipelineConfig={pipelineConfigByProject[currentProject.path] || null}
+        onSave={async (config) => {
+          const api = getHttpApiClient();
+          const result = await api.pipeline.saveConfig(currentProject.path, config);
+          if (!result.success) {
+            throw new Error(result.error || 'Failed to save pipeline config');
+          }
+          setPipelineConfig(currentProject.path, config);
+        }}
+      />
+
       {/* Follow-Up Prompt Dialog */}
       <FollowUpDialog
         open={showFollowUpDialog}