🧹 remove redundant console.log calls in edit tool

[TrueAlpha-spiral]

This change removes unnecessary console.log statements from packages/core/src/tools/edit.ts in the shouldConfirmExecute method. These logs were used to display error messages when preparing an edit for confirmation. Since shouldConfirmExecute is a pre-execution check, and the actual execute method also performs these checks and returns a structured ToolResult containing the error details, these logs were redundant and created unwanted console noise.

Key changes:

• Removed console.log when calculateEdit throws an error.
• Removed console.log when editData contains a calculated error.
• Cleaned up an unused errorMsg constant.

Verification:

• Manually verified that the console.log calls were removed using read_file.
• Code review confirmed the changes are correct and follow best practices for core library code.
• Attempted to run tests, but the environment lacked vitest and had network restrictions; however, the change is a safe code health improvement that doesn't affect functional logic.

---

PR created automatically by Jules for task 18124951726135265632 started by @TrueAlpha-spiral

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.