- Remove dead replayPendingItems array and inert if-block in type-env.ts
- Add nullable_type fallback in extractKotlinDeclaration for val x: User? local vars
- Tighten isCSharpNullableDecl to avoid substring false positives on type names
- Add missing scope boundaries: function_expression (TS), constructor_declaration/
local_function_statement/lambda_expression (C#) in null-check narrowing walkers
- Extend null-check narrowing fixtures and add 4 integration tests covering:
Kotlin local variable nullable, C# constructor + lambda, TS function expression