Implement like-in-response-to-likes functionality

[konard]

🤖 AI-Powered Solution for Issue #40

📋 Issue Reference

Fixes #40 - "Like in response to likes"

✨ Implementation Details

This pull request implements automatic liking back when users like the bot's content. The solution includes:

🔧 Core Features

• Event Handling: Listens for like_add events via VK Callback API using vk-io
• Automatic Response: Automatically likes back when users like bot's content
• Multi-Type Support: Handles posts, comments, photos, and videos
• Loop Prevention: Prevents infinite loops by ignoring bot's own likes
• Error Handling: Gracefully handles already-liked content and API errors

📂 Files Added/Modified

• triggers/like-in-response-to-likes.js - Main trigger implementation
• index.js - Added like event handler registration
• __tests__/triggers/like-in-response-to-likes.js - Comprehensive test suite
• experiments/test-like-response.js - Functional test demonstration
• experiments/test-like-events.js - Event registration testing

🧪 Testing

• ✅ Unit tests for all object types (post, comment, photo, video)
• ✅ Bot self-like prevention testing
• ✅ Error handling for unknown object types
• ✅ Already-liked content handling
• ✅ Functional testing with mock VK API

🚀 How It Works

1. Bot receives like_add event when someone likes its content
2. Validates that the like is not from the bot itself
3. Determines the object type (post, comment, photo, video)
4. Makes appropriate VK API call to like the content back
5. Handles errors gracefully (e.g., already liked, permission denied)

🔄 Event Flow

User likes bot's content → VK sends like_add event → Bot processes event → Bot likes back

🛡️ Safety Features

• Rate Limiting: Includes delays to respect VK API limits
• Self-Loop Prevention: Ignores likes from the bot itself
• Error Tolerance: Continues operation even if individual like attempts fail
• Type Validation: Only processes known object types

---

This solution was automatically implemented by the AI issue solver

[konard]

🤖 Solution Draft Log

This log file contains the complete execution trace of the AI solution draft process.

📎 Log file uploaded as GitHub Gist (215KB)
🔗 View complete solution draft log

---

Log automatically attached by solve.mjs with --attach-logs option