React to combinations of greeting and acquaintance in single message

[konard]

🤖 AI-Powered Solution

This pull request implements support for detecting and responding to messages that combine both a greeting and an acquaintance question in a single message.

📋 Issue Reference

Fixes #15

🎯 Problem

Previously, the bot had separate triggers for:

• Greeting messages (e.g., "Привет")
• Acquaintance questions (e.g., "Мы знакомы?")

However, when users sent combined messages like "Привет! Мы знакомы?", neither trigger would fire because each trigger expected the ENTIRE message to match only its pattern (using ^ and $ anchors).

✅ Solution

Created a new GreetingAndAcquaintanceTrigger that:

1. Uses partial regex matching to detect both greeting and acquaintance patterns within the same message
2. Supports all existing greeting patterns (text, emojis, stickers) + acquaintance questions
3. Responds with contextually appropriate combined responses
4. Works regardless of the order (greeting first or acquaintance question first)

📝 Implementation Details

New Files:

• triggers/greeting-and-acquaintance.js - Main trigger implementation
• __tests__/triggers/greeting-and-acquaintance.js - Comprehensive test suite (18 tests, all passing)

Modified Files:

• triggers/acquaintance.js - Exported acquaintedRegex for potential reuse

Key Features:

• Detects combinations like:
  • "Привет! Мы знакомы?"
  • "Здравствуйте! Мы знакомы с тобой?"
  • "🖐 Мы знакомы?"
  • "Знакомы мы? Привет" (reverse order)
  • Greeting sticker + "Мы знакомы?" text
• 12 different response variations to keep conversations natural
• Once-per-day trigger limit (consistent with other triggers)
• Full test coverage with various message combinations

🧪 Test Results

PASS __tests__/triggers/greeting-and-acquaintance.js
  greeting and acquaintance trigger
    ✓ 12 different message combinations
    ✓ 4 negative tests (messages that should NOT match)
    ✓ Sticker + text combination
    ✓ Function correctness test

Tests:       18 passed

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