add aionly plug

[AiOnly6868]

Plugin Submission Form

1. Metadata
   Plugin Author: AiOnly6868
   Plugin Name: aionly
   Repository URL: https://github.com/AiOnly6868/aionly_plug
2. Submission Type
   [✔️] New plugin submission
   [ ] Version update for existing plugin
3. Description
   This is a new Dify plugin that provides access to multiple AI models through the aionly.com API platform. The plugin offers:
   Large Language Models (LLM):
   aionly-kld3.5-sonnet-v2
   claude-3.7-sonnet
   claude-opus-4.1
   gpt-4o
   gpt-5-chat
   Text-to-Speech (TTS) Models:
   Doubao-tts01
   minimax-speech-02-hd
   The plugin serves as a unified gateway to access various cutting-edge AI models through a single API key, making it convenient for users to switch between different models without managing multiple API credentials.
4. Checklist
   [✔️] I have read and followed the Publish to Dify Marketplace guidelines
   [✔️] I have read and comply with the Plugin Developer Agreement
   [✔️] I confirm my plugin works properly on both Dify Community Edition and Cloud Version
   [✔️] I confirm my plugin has been thoroughly tested for completeness and functionality
   [✔️] My plugin brings new value to Dify
5. Documentation Checklist
   Please confirm that your plugin README includes all necessary information:
   [✔️] Step-by-step setup instructions
   [✔️] Detailed usage instructions
   [✔️] All required APIs and credentials are clearly listed
   [✔️] Connection requirements and configuration details
   [✔️] Link to the repository for the plugin source code
6. Privacy Protection Information
   Based on Dify Plugin Privacy Protection Guidelines:
   Data Collection
   Yes, the plugin collects the following types of user personal data:
   API Key Information: User-provided aionly API keys for authentication
   Usage Data: Text content sent to AI models, model configuration parameters, usage time and frequency
   Technical Information: Plugin version information, error logs, debugging information, and network request information
   The data collection is necessary for:
   Authenticating users with the aionly.com service
   Processing AI model requests and text-to-speech conversions
   Monitoring plugin performance and diagnosing technical issues
   Ensuring security and preventing abuse
   Privacy Policy
   [x] I confirm that I have prepared and included a privacy policy in my plugin package based on the Plugin Privacy Protection Guidelines
   The privacy policy is included in the PRIVACY.md file and covers:
   Types of information collected
   How information is used
   Data sharing practices
   Security measures
   Data retention policies
   User rights
   Contact information for privacy-related inquiries
   Note: The plugin acts as a proxy service that forwards user requests to aionly.com's API. All AI processing is performed by aionly.com's servers, and the plugin does not store user conversation content locally.

[crazywoola]

Summary

Check	Status	Details
Single .difypkg change	✅	aionly/aionly.difypkg
PR title/body English-only	✅	No CJK detected (Self Checks excluded)
Manifest author	✅	No langgenius/dify in author
Icon validation	✅	Icon file present
README language	✅	README.md contains no Chinese
Dependency install	✅	requirements.txt installs on Python 3.12
Plugin install test	✅	Plugin starts and responds on port 8080
Packaging check	✅	Package re-built successfully
dify_plugin version	❌	Installed dify_plugin 0.2.4 (< 0.5.0)
Marketplace version check	⚠️	Marketplace API returned 500; unable to verify version availability

Required Fixes

1. Update requirements.txt to require dify_plugin>=0.5.0 (current requirement allows 0.2.x, which fails the minimum SDK version requirement).

Once this is updated and pushed, I can re-run the checks.