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/server/api/webpack.config.js

@@ -0,0 +1,7 @@
+const { composePlugins, withNx } = require('@nx/webpack');
+const IgnoreDynamicRequire = require('webpack-ignore-dynamic-require');
+
+module.exports = composePlugins(withNx(), (config) => {
+  config.plugins.push(new IgnoreDynamicRequire());
+  return config;
+});