Add documentation for AI 视频助手 including configuration, features, integrations, and quickstart guide

- Create a new JSON schema file for documentation settings.
- Add core features documentation detailing assistant configuration and model integration.
- Include an index page introducing the AI 视频助手 and its platform components.
- Document integration methods for model services and external agents.
- Provide a quickstart guide for setting up the local development environment using Docker.
- Add light and dark logo SVG files for branding purposes.

docs/docs.json

@@ -0,0 +1,57 @@
+{
+  "$schema": "https://mintlify.com/docs.json",
+  "name": "AI 视频助手",
+  "theme": "mint",
+  "colors": {
+    "primary": "#1b2741",
+    "light": "#3a4a6b",
+    "dark": "#0c1426"
+  },
+  "logo": {
+    "light": "/logo-light.svg",
+    "dark": "/logo-dark.svg",
+    "href": "/"
+  },
+  "appearance": {
+    "default": "dark"
+  },
+  "fonts": {
+    "family": "Inter",
+    "weight": 400,
+    "heading": {
+      "family": "Cormorant Garamond",
+      "weight": 300
+    }
+  },
+  "icons": {
+    "library": "lucide"
+  },
+  "background": {
+    "decoration": "gradient",
+    "color": {
+      "light": "#f3f5fb",
+      "dark": "#070b16"
+    }
+  },
+  "styling": {
+    "eyebrows": "breadcrumbs",
+    "codeblocks": {
+      "theme": {
+        "light": "github-light",
+        "dark": "github-dark"
+      }
+    }
+  },
+  "navigation": {
+    "groups": [
+      {
+        "group": "开始使用",
+        "pages": ["index", "quickstart"]
+      },
+      {
+        "group": "产品与对接",
+        "pages": ["features", "integrations"]
+      }
+    ]
+  }
+}