chore: remove deprecated API documentation files and workflow (#1714)

This commit deletes the outdated API documentation files and the
associated GitHub Actions workflow for updating the API documentation.
All content has been permanently moved to the Unraid Docs repository.

.github/workflows/create-docusaurus-pr.yml

@@ -1,82 +0,0 @@
-name: Update API Documentation
-on:
-  push:
-    branches:
-      - main
-    paths:
-      - 'api/docs/**'
-  workflow_dispatch:
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-# Add permissions for GITHUB_TOKEN
-permissions:
-  contents: write
-  pull-requests: write
-jobs:
-  create-docs-pr:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout source repository
-        uses: actions/checkout@v5
-        with:
-          path: source-repo
-
-      - name: Checkout docs repository
-        uses: actions/checkout@v5
-        with:
-          repository: unraid/docs
-          path: docs-repo
-          token: ${{ secrets.DOCS_PAT_UNRAID_BOT }}
-
-      - name: Copy and process docs
-        run: |
-          if [ ! -d "source-repo/api/docs" ]; then
-            echo "Source directory does not exist!"
-            exit 1
-          fi
-          
-          # Remove old API docs but preserve other folders
-          rm -rf docs-repo/docs/API/
-          mkdir -p docs-repo/docs/API
-          
-          # Copy all markdown files and maintain directory structure
-          cp -r source-repo/api/docs/public/. docs-repo/docs/API/
-          
-          # Copy images to Docusaurus static directory
-          mkdir -p docs-repo/static/img/api
-          
-          # Copy images from public/images if they exist
-          if [ -d "source-repo/api/docs/public/images" ]; then
-            cp -r source-repo/api/docs/public/images/. docs-repo/static/img/api/
-          fi
-          
-          # Also copy any images from the parent docs/images directory
-          if [ -d "source-repo/api/docs/images" ]; then
-            cp -r source-repo/api/docs/images/. docs-repo/static/img/api/
-          fi
-          
-          # Update image paths in markdown files
-          # Replace relative image paths with absolute paths pointing to /img/api/
-          find docs-repo/docs/API -name "*.md" -type f -exec sed -i 's|!\[\([^]]*\)\](\./images/\([^)]*\))|![\1](/img/api/\2)|g' {} \;
-          find docs-repo/docs/API -name "*.md" -type f -exec sed -i 's|!\[\([^]]*\)\](images/\([^)]*\))|![\1](/img/api/\2)|g' {} \;
-          find docs-repo/docs/API -name "*.md" -type f -exec sed -i 's|!\[\([^]]*\)\](../images/\([^)]*\))|![\1](/img/api/\2)|g' {} \;
-      - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
-        with:
-          token: ${{ secrets.DOCS_PAT_UNRAID_BOT }}
-          path: docs-repo
-          commit-message: 'docs: update API documentation'
-          title: 'Update API Documentation'
-          body: |
-            This PR updates the API documentation based on changes from the main repository.
-            
-            Changes were automatically generated from api/docs/* directory.
-
-            @coderabbitai ignore
-          reviewers: ljm42, elibosley
-          branch: update-api-docs
-          base: main
-          delete-branch: true