Add Activepieces integration for workflow automation

- Add Activepieces fork with SmoothSchedule custom piece
- Create integrations app with Activepieces service layer
- Add embed token endpoint for iframe integration
- Create Automations page with embedded workflow builder
- Add sidebar visibility fix for embed mode
- Add list inactive customers endpoint to Public API
- Include SmoothSchedule triggers: event created/updated/cancelled
- Include SmoothSchedule actions: create/update/cancel events, list resources/services/customers

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

activepieces-fork/packages/react-ui/src/features/agents/agent-tools/add-agent-tool-dropwdown.tsx

@@ -0,0 +1,98 @@
+import { t } from 'i18next';
+import { ChevronDown, Puzzle, Workflow } from 'lucide-react';
+import { useState } from 'react';
+
+import { Button } from '@/components/ui/button';
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from '@/components/ui/dropdown-menu';
+import { AgentTool, AgentToolType } from '@activepieces/shared';
+
+import { AgentFlowToolDialog } from './flow-tool-dialog';
+import { AgentPieceDialog } from './piece-tool-dialog';
+
+type AddAgentToolDropdownProps = {
+  tools: AgentTool[];
+  disabled?: boolean;
+  onToolsUpdate: (tools: AgentTool[]) => void;
+};
+
+export const AddAgentToolDropdown = ({
+  tools,
+  disabled,
+  onToolsUpdate,
+}: AddAgentToolDropdownProps) => {
+  const [openDropdown, setOpenDropdown] = useState(false);
+  const [showAddPieceDialog, setShowAddPieceDialog] = useState(false);
+  const [showAddFlowDialog, setShowAddFlowDialog] = useState(false);
+
+  return (
+    <DropdownMenu
+      modal={false}
+      open={openDropdown}
+      onOpenChange={setOpenDropdown}
+    >
+      <DropdownMenuTrigger disabled={disabled} asChild>
+        <Button variant="basic">
+          <span>{t('Add tool')}</span>
+          <ChevronDown className="h-4 w-4" />
+        </Button>
+      </DropdownMenuTrigger>
+      <DropdownMenuContent>
+        <AgentPieceDialog
+          tools={tools}
+          open={showAddPieceDialog}
+          onToolsUpdate={(tools) => {
+            onToolsUpdate(tools);
+            setShowAddPieceDialog(false);
+            setOpenDropdown(false);
+          }}
+          onClose={() => {
+            setShowAddPieceDialog(false);
+            setOpenDropdown(false);
+          }}
+        >
+          <DropdownMenuItem
+            onSelect={(e) => {
+              e.preventDefault();
+              setShowAddPieceDialog(true);
+            }}
+          >
+            <Puzzle className="h-4 w-4 me-2" />
+            <span>{t('From piece')}</span>
+          </DropdownMenuItem>
+        </AgentPieceDialog>
+        <AgentFlowToolDialog
+          open={showAddFlowDialog}
+          selectedFlows={tools
+            .filter((tool) => tool.type === AgentToolType.FLOW)
+            .map((tool) => tool.flowId!)}
+          onToolsUpdate={(newTools) => {
+            onToolsUpdate(newTools);
+            setShowAddFlowDialog(false);
+            setOpenDropdown(false);
+          }}
+          onClose={() => {
+            setShowAddFlowDialog(false);
+            setOpenDropdown(false);
+          }}
+          tools={tools}
+        >
+          <DropdownMenuItem
+            onSelect={(e) => {
+              e.stopPropagation();
+              e.preventDefault();
+              setShowAddFlowDialog(true);
+            }}
+          >
+            <Workflow className="h-4 w-4 me-2" />
+            <span>{t('From flow')}</span>
+          </DropdownMenuItem>
+        </AgentFlowToolDialog>
+      </DropdownMenuContent>
+    </DropdownMenu>
+  );
+};