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/line/src/lib/actions/push-message.ts

@@ -0,0 +1,44 @@
+import { Property, createAction } from '@activepieces/pieces-framework';
+import { lineAuth2 } from '../..';
+import {
+  AuthenticationType,
+  HttpMethod,
+  httpClient,
+} from '@activepieces/pieces-common';
+
+export const pushMessage = createAction({
+  name: 'push_message', // Must be a unique across the piece, this shouldn't be changed.
+  auth: lineAuth2,
+  displayName: 'Push Message',
+  description: 'Push message to the line account',
+  props: {
+    userId: Property.ShortText({
+      displayName: 'User Id',
+      description: 'The user id can be obtained from the webhook payload',
+      required: true,
+    }),
+    text: Property.ShortText({
+      displayName: 'Text',
+      required: true,
+    }),
+  },
+  async run(context) {
+    return httpClient.sendRequest({
+      method: HttpMethod.POST,
+      url: `https://api.line.me/v2/bot/message/push`,
+      authentication: {
+        type: AuthenticationType.BEARER_TOKEN,
+        token: context.auth.secret_text,
+      },
+      body: {
+        to: context.propsValue.userId,
+        messages: [
+          {
+            type: 'text',
+            text: context.propsValue.text,
+          },
+        ],
+      },
+    });
+  },
+});

activepieces-fork/packages/pieces/community/line/src/lib/trigger/new-message.ts

@@ -0,0 +1,43 @@
+import {
+  createTrigger,
+  PieceAuth,
+  Property,
+  TriggerStrategy,
+} from '@activepieces/pieces-framework';
+
+const markdown = `
+- Create Line bot account from Developer Console
+- Go to the "Messaging API" section.
+- In the webhook settings, paste this URL: 
+  \`{{webhookUrl}}\`
+- Publish Activepieces flow first then click "Verify" button
+`;
+
+export const newMessage = createTrigger({
+  name: 'new-message',
+  displayName: 'New Message',
+  auth: PieceAuth.None(),
+  description: 'Triggers when a new message is received',
+  props: {
+    md: Property.MarkDown({
+      value: markdown,
+    }),
+  },
+  type: TriggerStrategy.WEBHOOK,
+  sampleData: {},
+  async onEnable(context) {
+    // Empty
+  },
+  async onDisable(context) {
+    // Empty
+  },
+  async run(context) {
+    const { events } = context.payload.body as { events: unknown[] };
+    if (!events) {
+      return [];
+    }
+    return events.filter(
+      (event: any) => event.mode === 'active' && event.type === 'message'
+    );
+  },
+});