NevermoreEngine

Convert a Nevermore Luau file from --!nonstrict (or untyped/--!nocheck) to --!strict, adding the project's explicit type annotations and fixing every type error the checker reports. Use this whenever the user asks to "strictly type", "add types to", "make strict", "type-annotate", "convert to --!strict", or clean up the typing on a .lua/.luau file in this repo — including when they just select a file with a `--!nonstrict` header and say "type this" or point you at a legacy module. Also use it when a strict file is throwing luau-lsp type errors and the user wants them resolved following Nevermore conventions.