Fix Interlocked.CompareExchange pattern to use explicit comparison

[Copilot]

The Interlocked.CompareExchange calls used negation (!) instead of explicit comparison, reducing clarity for atomic compare-and-swap operations.

Changes

• Changed !Interlocked.CompareExchange(ref _initialized, true, false) to Interlocked.CompareExchange(ref _initialized, true, false) == false at both initialization check points (lines 133, 157)

The explicit == false pattern makes the intent clear: execute the block if the original value was false, which is the value returned by CompareExchange.

// Before
if (!Interlocked.CompareExchange(ref _initialized, true, false))
{
    InitializeHaptics();
}

// After  
if (Interlocked.CompareExchange(ref _initialized, true, false) == false)
{
    InitializeHaptics();
}

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