feat: update API documentation and OpenAPI integration

- Refactored API documentation generation to utilize the new `fumadocs-openapi` features, including improved error handling and output structure.
- Replaced the Authorization security scheme with x-api-key for enhanced API key authentication.
- Added new MDX files for various API endpoints, ensuring comprehensive documentation coverage.
- Updated the OpenAPI specification to reflect the latest changes in security definitions and response schemas.
- Enhanced the documentation generation script to streamline the process and ensure consistency.

apps/docs-new/content/docs/api/github.mdx

@@ -0,0 +1,43 @@
+---
+title: Github
+full: true
+_openapi:
+  toc:
+    - depth: 2
+      title: Github one
+      url: '#github-one'
+    - depth: 2
+      title: Github get Github Repositories
+      url: '#github-get-github-repositories'
+    - depth: 2
+      title: Github get Github Branches
+      url: '#github-get-github-branches'
+    - depth: 2
+      title: Github github Providers
+      url: '#github-github-providers'
+    - depth: 2
+      title: Github test Connection
+      url: '#github-test-connection'
+    - depth: 2
+      title: Github update
+      url: '#github-update'
+  structuredData:
+    headings:
+      - content: Github one
+        id: github-one
+      - content: Github get Github Repositories
+        id: github-get-github-repositories
+      - content: Github get Github Branches
+        id: github-get-github-branches
+      - content: Github github Providers
+        id: github-github-providers
+      - content: Github test Connection
+        id: github-test-connection
+      - content: Github update
+        id: github-update
+    contents: []
+---
+
+{/* This file was generated by Fumadocs. Do not edit this file directly. Any changes should be made by running the generation command again. */}
+
+<APIPage document={"./public/openapi.json"} webhooks={[]} operations={[{"path":"/github.one","method":"get"},{"path":"/github.getGithubRepositories","method":"get"},{"path":"/github.getGithubBranches","method":"get"},{"path":"/github.githubProviders","method":"get"},{"path":"/github.testConnection","method":"post"},{"path":"/github.update","method":"post"}]} showTitle={true} />