fix(nitro): normalise uploaded bundles so meta.image matches the texture

An uploaded .nitro was written to disk byte-for-byte, so a bundle from a
third-party tool that ships a WebP member while still pointing
spritesheet.meta.image at a .png was accepted and stored as-is. The client
resolves the spritesheet through that pointer, so the result was a file
that validates fine and then renders nothing.

Re-write the bundle through createNitroBundle on import, which labels the
member from the actual bytes and repairs the pointer. No texture is
re-encoded, so the bytes stay identical, and the member keeps the base
name it arrived with so `chair*2` colour variants that share the `chair`
library are not renamed.

scripts/compress-gamedata.mjs

@@ -1,130 +0,0 @@
-/**
- * Pre-compress large gamedata JSON files to .gz so nginx `gzip_static`
- * serves them via sendfile instead of re-compressing up to 48 MB on every
- * request (see /etc/nginx/nginx.conf: `gzip_static on`).
- *
- * Idempotent: a file is only re-compressed when its source mtime is newer
- * than the existing .gz (e.g. after a Studio catalog export rewrites it).
- *
- * Usage: node scripts/compress-gamedata.mjs
- * Env:   GAMEDATA_ROOT (default /var/www/Gamedata)
- *        GAMEDATA_GZIP_MIN_BYTES (default 1048576)
- */
-
-import { createReadStream, createWriteStream, promises as fs } from "node:fs";
-import { cpus } from "node:os";
-import { join, relative } from "node:path";
-import { pipeline } from "node:stream/promises";
-import { createGzip } from "node:zlib";
-
-const GAMEDATA_ROOT = process.env.GAMEDATA_ROOT ?? "/var/www/Gamedata";
-const MIN_BYTES = Number(process.env.GAMEDATA_GZIP_MIN_BYTES ?? 1024 * 1024);
-const GZIP_LEVEL = 9;
-const TARGET_DIRS = ["config", "bundled/config"];
-const CONCURRENCY = Math.max(1, Math.min(4, cpus().length));
-
-function isCompressible(name) {
-	return (
-		name.endsWith(".json") &&
-		!name.endsWith(".gz") &&
-		!name.endsWith(".min.json")
-	);
-}
-
-async function collectCandidates() {
-	const files = [];
-	for (const dir of TARGET_DIRS) {
-		const root = join(GAMEDATA_ROOT, dir);
-		let entries;
-		try {
-			entries = await fs.readdir(root, { withFileTypes: true });
-		} catch {
-			continue;
-		}
-		for (const entry of entries) {
-			if (!entry.isFile() || !isCompressible(entry.name)) continue;
-			const full = join(root, entry.name);
-			const stat = await fs.stat(full);
-			if (stat.size < MIN_BYTES) continue;
-			files.push({ src: full, size: stat.size, mtimeMs: stat.mtimeMs });
-		}
-	}
-	return files;
-}
-
-async function needsCompression({ src, mtimeMs }) {
-	const gz = `${src}.gz`;
-	try {
-		const stat = await fs.stat(gz);
-		return stat.mtimeMs < mtimeMs;
-	} catch {
-		return true;
-	}
-}
-
-async function compressOne({ src }) {
-	const gz = `${src}.gz`;
-	const tmp = `${gz}.tmp-${process.pid}`;
-	await pipeline(
-		createReadStream(src),
-		createGzip({ level: GZIP_LEVEL }),
-		createWriteStream(tmp),
-	);
-	await fs.rename(tmp, gz);
-	try {
-		await fs.chmod(gz, 0o644);
-	} catch {
-		// Best-effort; ownership is up to the caller.
-	}
-	return gz;
-}
-
-async function main() {
-	const candidates = await collectCandidates();
-	const work = [];
-	const skipped = [];
-	for (const candidate of candidates) {
-		if (await needsCompression(candidate)) {
-			work.push(candidate);
-		} else {
-			skipped.push(candidate);
-		}
-	}
-
-	const results = [];
-	let idx = 0;
-	async function worker() {
-		while (idx < work.length) {
-			const item = work[idx++];
-			try {
-				const gz = await compressOne(item);
-				const stat = await fs.stat(gz);
-				results.push(
-					`compressed ${relative(GAMEDATA_ROOT, gz)} (${item.size} -> ${stat.size} bytes, ${Math.round((1 - stat.size / item.size) * 1000) / 10}% smaller)`,
-				);
-			} catch (err) {
-				results.push(
-					`FAILED ${relative(GAMEDATA_ROOT, item.src)}: ${err instanceof Error ? err.message : String(err)}`,
-				);
-			}
-		}
-	}
-
-	const workers = Array.from(
-		{ length: Math.min(CONCURRENCY, work.length) },
-		() => worker(),
-	);
-	await Promise.all(workers);
-
-	console.log(
-		`gamedata: ${work.length} to compress, ${skipped.length} up to date`,
-	);
-	for (const line of results) console.log(`gamedata: ${line}`);
-}
-
-main().catch((err) => {
-	console.error(
-		`gamedata: FATAL ${err instanceof Error ? err.message : String(err)}`,
-	);
-	process.exit(1);
-});