feat: 任务解析器及测试

src/core/task-parser.ts

@@ -0,0 +1,16 @@
+import type { TaskItem } from "../types.ts";
+
+export function parseTasks(content: string): TaskItem[] {
+  const tasks: TaskItem[] = [];
+  const lines = content.split("\n");
+  for (const line of lines) {
+    const match = line.match(/^[\s]*- \[([ xX])\] (.*)$/);
+    if (match) {
+      tasks.push({
+        checked: match[1] !== " ",
+        text: match[2],
+      });
+    }
+  }
+  return tasks;
+}