fix(knoi): convert JS Number arrays to Kotlin Int without silent zeros

[tonycoder-hub]

Summary

• ArkTS Array received as Kotlin Array became all zeros after toIntArray(). Array worked because JS Number is IEEE-754 double.
• Read JS Number as double, then toInt()/toLong(), instead of napi_get_value_int32 or reinterpreting Float64 bytes as i32.
• Coerce generated Array/List parameters so type-erased Double elements become real Kotlin ints. Int stays a supported type.

Test plan

• JsNumberConversionTest: Double array to Int, toIntArray(), reject non-numbers
• NumericCollectionConvertTest: processor only coerces numeric Array/List
• Sample harness testArrayIntReturnArrayInt

Fixes #25

[tencent-adm]

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[tonycoder-hub]

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