docs: add MCP Server Registry documentation

Author: Jeremy

docs/plugins/mcp-servers.md

@@ -0,0 +1,42 @@
+---
+title: "MCP Servers"
+---
+
+# MCP Server Registry
+
+OpenSIN nutzt Model Context Protocol (MCP) Server für Browser-Automation, Desktop-Control und Plattform-Integration.
+
+## 🔌 VERFÜGBARE MCP SERVER
+
+| Server | Zweck | Team |
+|--------|-------|------|
+| [MCP-SIN-chrome-extension](https://github.com/OpenSIN-AI/MCP-SIN-chrome-extension) | Chrome Extension MCP - Browser Automation via Extension | Infrastructure |
+| [MCP-SIN-computer-use](https://github.com/OpenSIN-AI/MCP-SIN-computer-use) | Computer Use MCP - Desktop Control (macOS/Windows/Linux) | Infrastructure |
+| [MCP-SIN-in-chrome](https://github.com/OpenSIN-AI/MCP-SIN-in-chrome) | In-Chrome MCP - Tab/Content Access, DOM Manipulation | Infrastructure |
+| [MCP-SIN-mcp-gateway](https://github.com/OpenSIN-AI/MCP-SIN-mcp-gateway) | MCP Gateway - Central Routing & Load Balancing | Infrastructure |
+| [MCP-SIN-memory](https://github.com/OpenSIN-AI/MCP-SIN-memory) | Memory MCP - Persistent Storage & Retrieval | Infrastructure |
+| [MCP-SIN-platform-auth](https://github.com/OpenSIN-AI/MCP-SIN-platform-auth) | Platform Auth - OAuth/SSO für externe Plattformen | Infrastructure |
+| [MCP-SIN-usebrowser](https://github.com/OpenSIN-AI/MCP-SIN-usebrowser) | UseBrowser - Web Automation via nodriver/CDP | Infrastructure |
+
+## 🛠️ KONFIGURATION
+
+MCP Server werden in `opencode.json` konfiguriert:
+
+```json
+{
+  "mcpServers": {
+    "sin-chrome-extension": {
+      "command": "node",
+      "args": ["dist/index.js"],
+      "env": {
+        "CHROME_PROFILE": "Default",
+        "CDP_PORT": "9335"
+      }
+    }
+  }
+}
+```
+
+## 📡 TEAM-ZUORDNUNG
+
+Alle MCP Server sind dem **Team-SIN-Infrastructure** unterstellt und werden von dort aus orchestriert.