feat(tasks): manage markdown loops from scheduled tasks

packages/web/server/lib/scheduled-tasks/loops.js

@@ -40,7 +40,7 @@
 import fs from 'fs';
 import os from 'os';
 import path from 'path';
-import { parseMdFile, getAncestors, findWorktreeRoot } from '../opencode/shared.js';
+import { parseMdFile, writeMdFile, getAncestors, findWorktreeRoot } from '../opencode/shared.js';
 import { MAX_TASK_NAME_LENGTH } from '../projects/project-config.js';
 
 const LOOP_DIR_NAME = 'loops';
@@ -140,6 +140,15 @@ export const parseLoopDefinition = (filePath) => {
   };
 };
 
+export const setLoopFileEnabled = (filePath, enabled) => {
+  if (!parseLoopDefinition(filePath)) {
+    return false;
+  }
+  const { frontmatter, body } = parseMdFile(filePath);
+  writeMdFile(filePath, { ...frontmatter, enabled: Boolean(enabled) }, body);
+  return true;
+};
+
 const walkLoopMdFiles = (rootDir) => {
   if (!rootDir || !fs.existsSync(rootDir)) {
     return [];