Planning With Files

This implements Manus-style file-based planning using three markdown files (task_plan.md, findings.md, progress.md) that live in your project directory. The idea is to treat your filesystem like persistent memory since context windows are volatile. It auto-activates for complex tasks and hooks into your workflow to remind you to update plans before major actions. The 2-action rule is smart: after every two browse or search operations, you must save findings to disk before that multimodal info gets lost. The 3-strike error protocol keeps you from banging your head against the same failed action. Feels like training wheels for methodical work, but honestly, the discipline of writing things down before acting probably prevents a lot of thrashing.