Add LinuxCNC five-axis case catalog

scripts/validate_five_axis_catalog.mjs

@@ -0,0 +1,21 @@
+import { readFile } from "node:fs/promises";
+import { resolve } from "node:path";
+import { FIVE_AXIS_CASES } from "../web/workspace/five-axis-machine-catalog.mjs";
+
+const root = resolve(new URL("..", import.meta.url).pathname);
+const checks = [];
+const errors = [];
+for (const item of FIVE_AXIS_CASES) {
+  const paths = [...item.localCases, item.kinematicsSource];
+  for (const relative of paths) {
+    try {
+      const text = await readFile(resolve(root, relative), "utf8");
+      checks.push({ case: item.id, path: relative, bytes: Buffer.byteLength(text) });
+    } catch (error) {
+      errors.push({ case: item.id, path: relative, error: error instanceof Error ? error.message : String(error) });
+    }
+  }
+}
+const report = { report_id: "FIVE-AXIS-CATALOG-LOCAL-SOURCE", status: errors.length ? "failed" : "verified", caseCount: FIVE_AXIS_CASES.length, fileCount: checks.length, checks, errors };
+console.log(JSON.stringify(report, null, 2));
+if (errors.length) process.exitCode = 1;