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/presenton/src/index.ts

@@ -0,0 +1,34 @@
+import { createPiece } from '@activepieces/pieces-framework';
+import { generatePresentations } from './lib/actions/generate-presentations';
+
+import { presentonAuth } from './lib/common/auth';
+import { PieceCategory } from '@activepieces/shared';
+import { newPresentation } from './lib/triggers/new-presentation';
+import { createCustomApiCallAction } from '@activepieces/pieces-common';
+
+export const presentation = createPiece({
+  displayName: 'Presenton',
+  description:
+    'Generate AI-powered presentations using Presenton (https://presenton.ai). Supports templates, themes, images, synchronous and asynchronous generation, status polling, and export to PPTX/PDF.',
+  auth: presentonAuth,
+  minimumSupportedRelease: '0.36.1',
+  logoUrl: 'https://cdn.activepieces.com/pieces/presenton.png',
+  categories: [
+    PieceCategory.ARTIFICIAL_INTELLIGENCE,
+    PieceCategory.CONTENT_AND_FILES,
+  ],
+  authors: ['sanket-a11y'],
+  actions: [
+    generatePresentations,
+    createCustomApiCallAction({
+      auth: presentonAuth,
+      baseUrl: () => 'https://api.presenton.ai/api/v1',
+      authMapping: async (auth) => {
+        return {
+          Authorization: `Bearer ${auth.secret_text}`,
+        };
+      },
+    }),
+  ],
+  triggers: [newPresentation],
+});