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/invoiceninja/src/index.ts

@@ -0,0 +1,65 @@
+import { createCustomApiCallAction } from '@activepieces/pieces-common';
+import {
+  PieceAuth,
+  Property,
+  createPiece,
+} from '@activepieces/pieces-framework';
+import { PieceCategory } from '@activepieces/shared';
+import { createTask } from './lib/actions/create-task';
+import { getClient } from './lib/actions/get-client';
+import { getInvoices } from './lib/actions/get-invoices';
+import { getReport } from './lib/actions/get-report';
+import { existsTask } from './lib/actions/task-exists';
+import { createInvoice } from './lib/actions/create-invoice';
+import { createClient } from './lib/actions/create-client';
+import { createRecurringInvoice } from './lib/actions/create-recurring';
+import { actionRecurringInvoice } from './lib/actions/action-recurring';
+
+export const invoiceninjaAuth = PieceAuth.CustomAuth({
+  props: {
+    base_url: Property.ShortText({
+      displayName: 'Base URL',
+      description: 'Enter the base URL',
+      required: true,
+    }),
+    access_token: Property.ShortText({
+      displayName: 'API Token',
+      description: 'Enter the API token',
+      required: true,
+    }),
+  },
+  description: `Please check https://invoice-ninja.readthedocs.io/en/latest/api_tokens.html#create-token
+   to see how to get the API token`,
+  required: true,
+});
+
+export const invoiceninja = createPiece({
+  displayName: 'Invoice Ninja',
+  description: 'Free open-source invoicing tool',
+
+  minimumSupportedRelease: '0.30.0',
+  logoUrl: 'https://cdn.activepieces.com/pieces/invoiceninja.png',
+  categories: [PieceCategory.ACCOUNTING],
+  authors: ["buttonsbond","kishanprmr","MoShizzle","AbdulTheActivePiecer","khaledmashaly","abuaboud"],
+  auth: invoiceninjaAuth,
+  actions: [
+    createTask,
+    existsTask,
+    getClient,
+    getInvoices,
+    getReport,
+    createInvoice,
+    createClient,
+    createRecurringInvoice,
+    actionRecurringInvoice,
+    createCustomApiCallAction({
+      baseUrl: (auth) =>
+        auth ? `${(auth).props.base_url.replace(/\/$/, '')}/api/v1` : '',
+      auth: invoiceninjaAuth,
+      authMapping: async (auth) => ({
+        'X-Api-Token': (auth).props.access_token,
+      }),
+    }),
+  ],
+  triggers: [],
+});