ci: fix Gitea Actions workflow

scripts/merge-config.cjs

@@ -0,0 +1,47 @@
+const fs = require('fs');
+const JSON5 = require('json5');
+
+const exampleFile = process.argv[2];
+const targetFile = process.argv[3];
+
+if (!exampleFile || !targetFile) {
+    process.exit(1);
+}
+
+function deepMerge(target, source) {
+    const result = { ...target };
+    for (const key of Object.keys(source)) {
+        if (source[key] !== null && typeof source[key] === 'object' && !Array.isArray(source[key])) {
+            result[key] = deepMerge(target[key] || {}, source[key]);
+        } else {
+            if (!(key in result)) {
+                result[key] = source[key];
+            }
+        }
+    }
+    return result;
+}
+
+let example;
+try {
+    const content = fs.readFileSync(exampleFile, 'utf-8');
+    example = JSON5.parse(content);
+} catch {
+    process.exit(1);
+}
+
+let current = {};
+try {
+    if (fs.existsSync(targetFile)) {
+        const content = fs.readFileSync(targetFile, 'utf-8');
+        current = JSON5.parse(content);
+    }
+} catch {
+    current = {};
+}
+
+const merged = deepMerge(current, example);
+
+const isJson5 = targetFile.endsWith('.json5');
+const output = isJson5 ? JSON5.stringify(merged, null, 4) : JSON.stringify(merged, null, 4);
+fs.writeFileSync(targetFile, output + '\n');