[Enhancement] Touch group judgement not implemented on AstroDX

**Describe the bug**
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Touch不能连锁

**To Reproduce**
Steps to reproduce the behavior:
1.

**Expected behavior**
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当连着的区域大于50%的同时touch被拍下时,所有连锁touch都被判定

**Screenshots**
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**Device specs**
- Device: iPad air gen 5
- OS: iOS 17.3.1
- Browser [e.g. stock browser, safari]
- Version 2.0.0 build 103

**Additional context**
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The issue describes a touch group judgment not being implemented in AstroDX. The first step is to locate the touch input handling and chain reaction logic in the C# codebase. Look for files related to input, touch detection, and game state scoring. Understanding the expected behavior (when a connected area is >50% and touch is pressed, all chained touches should be judged) requires familiarity with the game's core mechanics. Testing changes will involve building and running the game to verify the chain reaction works correctly.

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