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/docs/overview/welcome.mdx

@@ -0,0 +1,66 @@
+---
+sidebarTitle: "Welcome"
+title: "Welcome" 
+icon: 'hand-wave'
+description: "Your friendliest open source all-in-one automation tool, designed to be extensible."
+---
+
+
+
+<CardGroup cols={2}>
+  <Card
+    href="/flows/building-flows"
+    title="Learn Concepts"
+    icon="shapes"
+    color="#8143E3"
+  >
+    Learn how to work with Activepieces
+  </Card>
+  <Card
+    href="https://www.activepieces.com/pieces"
+    title="Pieces"
+    icon="puzzle-piece"
+    color="#8143E3"
+  >
+    Browse available pieces
+  </Card>
+  <Card
+    href="/install/overview"
+    title="Install"
+    icon="server"
+    color="#8143E3"
+  >
+    Learn how to install Activepieces
+  </Card>
+    <Card
+    href="/build-pieces/building-pieces/development-setup"
+    title="Build pieces"
+    icon="code"
+    color="#8143E3"
+  >
+    How to Build Pieces and Contribute 
+  </Card>
+</CardGroup>
+
+
+# 🔥 Why Activepieces is Different:
+
+- **💖 Loved by Everyone**: Intuitive interface and great experience for both technical and non-technical users with a quick learning curve.
+  
+
+![](/resources/templates.gif)
+- **🌐 Open Ecosystem:** All pieces are open source and available on npmjs.com, **60% of the pieces are contributed by the community**.
+
+- **🛠️  Pieces are written in Typescript**: Pieces are npm packages in TypeScript, offering full customization with the best developer experience, including **hot reloading** for **local** piece development on your machine. 😎
+
+
+![](/resources/create-action.png)
+
+
+- **🤖 AI-Ready**: Native AI pieces and agents are built into Activepieces. Integrating AI into your flows is seamless and simple—experiment with popular providers, or quickly create custom agents using our easy-to-use AI SDK.
+
+- **🏢 Enterprise-Ready**: Developers set up the tools, and anyone in the organization can use the no-code builder. Full customization from branding to control.
+
+- **🔒 Secure by Design**: Self-hosted and network-gapped for maximum security and control over your data.
+
+- **🧠 Human in Loop**: Delay execution for a period of time or require approval. These are just pieces built on top of the piece framework, and you can build many pieces like that. 🎨