feat: merge upstream fumadocs 16.6+ (182 commits) and rename to @hanzo/docs-*

Upstream changes include:
- UI: improved TOC detection, clerk variant, slot support
- Base UI: redesigned home layout navigation menu
- CLI: slot support in customise command
- OpenAPI: unsetting auth fields in playground
- Multiple version package releases

All fumadocs-* imports renamed to @hanzo/docs-* namespace.

examples/python/package.json

@@ -11,22 +11,30 @@
     "types:check": "@hanzo/docs-mdx && tsc --noEmit"
   },
   "dependencies": {
+<<<<<<< HEAD
     "@hanzo/docs-core": "workspace:*",
     "@hanzo/docs-mdx": "workspace:*",
     "@hanzo/docs-python": "workspace:*",
     "@hanzo/docs-ui": "workspace:*",
     "next": "16.1.6",
+=======
+    "@hanzo/docs-core": "workspace:*",
+    "@hanzo/docs-mdx": "workspace:*",
+    "fumadocs-python": "workspace:*",
+    "@hanzo/docs-ui": "workspace:*",
+    "next": "16.2.1",
+>>>>>>> dev
     "react": "^19.2.4",
     "react-dom": "^19.2.4"
   },
   "devDependencies": {
-    "@tailwindcss/postcss": "^4.2.1",
+    "@tailwindcss/postcss": "^4.2.2",
     "@types/mdx": "^2.0.13",
     "@types/node": "25.5.0",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
     "postcss": "^8.5.8",
-    "tailwindcss": "^4.2.1",
+    "tailwindcss": "^4.2.2",
     "typescript": "^5.9.3"
   }
 }