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/pieces/community/kissflow/src/index.ts

@@ -0,0 +1,37 @@
+import { createPiece } from '@activepieces/pieces-framework';
+
+import { createCustomApiCallAction } from '@activepieces/pieces-common';
+import { PieceCategory } from '@activepieces/shared';
+import { kissflowAuth, KissflowAuth } from './auth';
+import { downloadAttachmentFromFormField } from './lib/actions/download-attachment-from-form-field';
+
+export const kissflow = createPiece({
+  displayName: 'Kissflow',
+  description: 'Low-code no-code platform',
+  categories: [PieceCategory.PRODUCTIVITY],
+  auth: kissflowAuth,
+  minimumSupportedRelease: '0.36.1',
+  logoUrl: 'https://cdn.activepieces.com/pieces/kissflow.png',
+  authors: ['danielpoonwj'],
+  actions: [
+    downloadAttachmentFromFormField,
+    createCustomApiCallAction({
+      baseUrl: (auth) => {
+        if (!auth) {
+          return ''
+        }
+        const typedAuth = auth.props;
+        return `https://${typedAuth.accountName}.${typedAuth.domainName}/process/2/${typedAuth.accountId}/`;
+      },
+      auth: kissflowAuth,
+      authMapping: async (auth) => {
+        const typedAuth = auth.props;
+        return {
+          'X-Access-Key-Id': typedAuth.accessKeyId,
+          'X-Access-Key-Secret': typedAuth.accessKeySecret,
+        };
+      },
+    }),
+  ],
+  triggers: [],
+});