fix: download dify-plugin-cli to temp directory to avoid packaging

- Download dify-plugin-linux-amd64 to /tmp/dify-cli instead of current directory
- This prevents the CLI tool from being included in the plugin package
- Reduces final package size significantly
- Add *.difypkg to .gitignore to exclude generated packages

Author: yinxulai

.github/workflows/release.yml

@@ -14,12 +14,13 @@ jobs:
 
     - name: Download Dify Plugin CLI
       run: |
-        curl -L -o dify-plugin-linux-amd64 https://github.com/langgenius/dify-plugin-daemon/releases/download/0.2.0/dify-plugin-linux-amd64
-        chmod +x dify-plugin-linux-amd64
+        mkdir -p /tmp/dify-cli
+        curl -L -o /tmp/dify-cli/dify-plugin-linux-amd64 https://github.com/langgenius/dify-plugin-daemon/releases/download/0.2.0/dify-plugin-linux-amd64
+        chmod +x /tmp/dify-cli/dify-plugin-linux-amd64
         
     - name: Package plugin
       run: |
-        ./dify-plugin-linux-amd64 plugin package -o qiniu.difypkg .
+        /tmp/dify-cli/dify-plugin-linux-amd64 plugin package -o qiniu.difypkg .
         
     - name: Upload package to release
       uses: actions/upload-release-asset@v1

.gitignore

@@ -56,3 +56,4 @@ logs/
 # Temporary files
 *.tmp
 *.temp
+*.difypkg