Nadeem Ali

Fix: optional_data_string_conversion should detect String.init and leading-dot .init usages

1

### Summary The optional_data_string_conversion SwiftSyntax rule only detected direct calls like: ```swift String(decoding: data, as: UTF8.self) ``` but it missed two common variants: - Type-qualified initializer: `String.init(decoding: data, as: UTF8.self)`...