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/close/src/index.ts

@@ -0,0 +1,62 @@
+import { createPiece, PieceAuth } from '@activepieces/pieces-framework';
+import {
+  createCustomApiCallAction,
+  HttpMethod,
+} from '@activepieces/pieces-common';
+import { createLead } from './lib/actions/create-lead';
+import { findLead } from './lib/actions/find-lead';
+import { newLeadAdded } from './lib/triggers/new-lead-added';
+import { createOpportunity } from './lib/actions/create-opportunity';
+import { createContact } from './lib/actions/create-contact';
+import { newContactAdded } from './lib/triggers/new-contact-added';
+import { findContact } from './lib/actions/find-contact';
+import { CLOSE_API_URL, closeApiCall } from './lib/common/client';
+import { newOpportunityAdded } from './lib/triggers/new-opportunity';
+
+export const closeAuth = PieceAuth.SecretText({
+  displayName: 'API Key',
+  description: 'Your Close CRM API key for authentication.',
+  required: true,
+  validate: async ({ auth }) => {
+    try {
+      await closeApiCall({
+        accessToken: auth,
+        method: HttpMethod.GET,
+        resourceUri: '/me/',
+      });
+
+      return { valid: true };
+    } catch {
+      return {
+        valid: false,
+        error: 'Invalid API key.',
+      };
+    }
+  },
+});
+
+export const close = createPiece({
+  displayName: 'Close',
+  description: 'Sales automation and CRM integration for Close',
+  auth: closeAuth,
+  minimumSupportedRelease: '0.36.1',
+  logoUrl: 'https://cdn.activepieces.com/pieces/close.png',
+  authors: ['Ani-4x', 'kishanprmr'],
+  actions: [
+    createLead,
+    createContact,
+    findLead,
+    createOpportunity,
+    findContact,
+    createCustomApiCallAction({
+      baseUrl: () => CLOSE_API_URL,
+      auth: closeAuth,
+      authMapping: async (auth) => {
+        return {
+          Authorization: `Basic ${Buffer.from(`${auth}:`).toString('base64')}`,
+        };
+      },
+    }),
+  ],
+  triggers: [newLeadAdded, newContactAdded, newOpportunityAdded],
+});