37a8203f94
- Replaced `AgentTool` `nointent` and `deriveIntent` with a unified `intent` option that supports `omit`, `optional`, `require`, or a callback function. - Updated agent tool schema injection and execution paths to inject `_i` as required/optional/omitted and to derive intent through the new `intent` callback. - Aligned atom-edit tests with the updated default sed behavior (`g` now off by default and explicit `g: true` for global replacement).