Update Healer Man server

scripts/runewaker-pipeline/lib/native-water-audit-cache.mjs

@@ -0,0 +1,51 @@
+import { createHash } from "node:crypto";
+import { mkdir, readFile, writeFile } from "node:fs/promises";
+import path from "node:path";
+import { ensureWithinProject } from "./native-water-build-utils.mjs";
+
+const sha256 = (bytes) => createHash("sha256").update(bytes).digest("hex");
+
+async function writeOrVerify(file, bytes, expectedHash) {
+  await mkdir(path.dirname(file), { recursive: true });
+  try {
+    await writeFile(file, bytes, { flag: "wx" });
+  } catch (error) {
+    if (error.code !== "EEXIST") throw error;
+  }
+  const persisted = await readFile(file);
+  const actualHash = sha256(persisted);
+  if (actualHash !== expectedHash || !persisted.equals(bytes)) {
+    throw new Error(`Refusing to replace non-identical native water audit-cache alias: ${file}`);
+  }
+  return { sha256: actualHash, bytes: persisted.length };
+}
+
+/** Write exact source and prepared-frame aliases for the environment-quality audit. */
+export async function writeNativeWaterAuditCacheAliases({
+  projectRoot,
+  auditCacheRoot,
+  variantName,
+  ddsBytes,
+  pngBytes,
+}) {
+  if (!auditCacheRoot) return null;
+  if (!/^[a-z\d][a-z\d_-]*$/i.test(variantName)) {
+    throw new Error(`Native water audit alias must be a safe texture basename: ${variantName}`);
+  }
+  ensureWithinProject(projectRoot, auditCacheRoot);
+  const root = path.resolve(auditCacheRoot);
+  const ddsHash = sha256(ddsBytes);
+  const pngHash = sha256(pngBytes);
+  const ddsFile = path.join(root, "raw", "textures", `${variantName}.dds`);
+  const pngFile = path.join(root, "prepared", "textures", `${variantName}.png`);
+  const [dds, png] = await Promise.all([
+    writeOrVerify(ddsFile, ddsBytes, ddsHash),
+    writeOrVerify(pngFile, pngBytes, pngHash),
+  ]);
+  const relative = (file) => path.relative(projectRoot, file).replaceAll("\\", "/");
+  return {
+    textureBasename: variantName,
+    rawDds: { path: relative(ddsFile), ...dds },
+    preparedPng: { path: relative(pngFile), ...png },
+  };
+}