Scaffold full-stack solution and CI baseline

scripts/format-check.mjs

@@ -0,0 +1,67 @@
+import { readdir, readFile } from "node:fs/promises";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const scriptDirectory = path.dirname(fileURLToPath(import.meta.url));
+const repoRoot = path.resolve(scriptDirectory, "..");
+
+const directoriesToScan = [
+    path.join(repoRoot, "RpgRoller", "wwwroot"),
+    path.join(repoRoot, "openapi")
+];
+
+const filesToScan = [
+    path.join(repoRoot, "scripts", "generate-api-client.mjs"),
+    path.join(repoRoot, "scripts", "lint-frontend.mjs"),
+    path.join(repoRoot, "scripts", "format-check.mjs")
+];
+
+async function collectFiles(directory) {
+    const entries = await readdir(directory, { withFileTypes: true });
+    const results = [];
+    for (const entry of entries) {
+        const fullPath = path.join(directory, entry.name);
+        if (entry.isDirectory()) {
+            const children = await collectFiles(fullPath);
+            results.push(...children);
+        }
+        else {
+            results.push(fullPath);
+        }
+    }
+
+    return results;
+}
+
+const allFiles = [...filesToScan];
+for (const directory of directoriesToScan) {
+    const directoryFiles = await collectFiles(directory);
+    allFiles.push(...directoryFiles);
+}
+
+const failures = [];
+for (const filePath of allFiles) {
+    const text = await readFile(filePath, "utf8");
+    const relativePath = path.relative(repoRoot, filePath);
+    const lines = text.split(/\r?\n/);
+
+    for (let lineNumber = 0; lineNumber < lines.length; lineNumber += 1) {
+        if (/[ \t]+$/.test(lines[lineNumber])) {
+            failures.push(`${relativePath}:${lineNumber + 1} has trailing whitespace.`);
+        }
+    }
+
+    if (text.includes("\t")) {
+        failures.push(`${relativePath} contains tab characters.`);
+    }
+
+    if (text.length > 0 && !text.endsWith("\n") && !text.endsWith("\r\n")) {
+        failures.push(`${relativePath} is missing a trailing newline.`);
+    }
+}
+
+if (failures.length > 0) {
+    throw new Error(failures.join("\n"));
+}
+
+console.log("Frontend format checks passed.");