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/ee/ui/.eslintrc.json

@@ -0,0 +1,17 @@
+{
+    "extends": ["../../../.eslintrc.json"],
+    "ignorePatterns": ["!**/*"],
+    "overrides": [
+      {
+        "files": ["*.ts"],
+        "rules": {
+          "@typescript-eslint/adjacent-overload-signatures": "off",
+          "@typescript-eslint/no-non-null-assertion": "off"
+        },
+        "extends": [
+          "plugin:prettier/recommended"
+        ],
+        "plugins": ["prettier"]
+      }
+    ]
+  }