0.58.0

• Added String.endsWith to the language/runtime built-ins with corresponding type inference support.
• Optimized runtime invocation paths by reducing argument list churn and improving closure application in Eval.invokeValue.
• Cached stdlib loading and reserved-name computation to avoid repeated parse/inference work.
• Optimized ScriptHost exported symbol access by caching function/value sets and maps for faster invoke and getValue.
• Moved stdlib List.*, Option.*, Map.*, Environment, and FsKind definitions to native language/runtime built-ins to remove stdlib source parsing/inference at load time.
• Removed virtual stdlib source navigation plumbing from LSP (fscript/stdlibSource) and updated injected symbol/type resolution to rely on native built-in metadata.

Full Changelog: 0.57.0...0.58.0