perf: use lzma-wasm for SWF decompression and drop vite

Replace the pure-JS lzma decoder with lzma-wasm (Rust/WASM, base64-inlined,
zero-alloc decompress), giving an order-of-magnitude speedup on furni
imports. Remove the obsolete lzma type shim and the redundant top-level
vite dev dependency, which nothing imports directly.

src/types/lzma.d.ts

@@ -1,14 +0,0 @@
-declare module "lzma" {
-	export const LZMA: any;
-	export function decompress(
-		byte_array: any,
-		on_finish?: (result: any, error: any) => void,
-		on_progress?: (percent: number) => void,
-	): any;
-	export function compress(
-		string: string | Uint8Array,
-		mode: number,
-		on_finish?: (result: any, error: any) => void,
-		on_progress?: (percent: number) => void,
-	): any;
-}