Add visigrid extension

[robertdoneill]

Description

Screencast

Checklist

• I read the extension guidelines
• I read the documentation about publishing
• I ran npm run build and tested this distribution build in Raycast
• I checked that files in the assets folder are used by the extension itself
• I checked that assets used by the README are placed outside of the metadata folder

[raycastbot]

Congratulations on your new Raycast extension! 🚀

We're currently experiencing a high volume of incoming requests. As a result, the initial review may take up to 15 business days.

Once the PR is approved and merged, the extension will be available on our Store.

[greptile-apps]

Greptile Summary

The PR adds a VisiGrid extension with formula evaluation, spreadsheet previews, and workbook opening. The latest changes bound filesystem work, widen Spotlight date queries, use generated manifest types, and allow literal formulas to run without clipboard data.

Confidence Score: 4/5

The PR is not yet safe to merge because the spreadsheet fallback can still omit the newest files needed to fill the displayed list.

The unrestricted fallback truncates unordered Spotlight output before modification times are read, so users with a large archive and fewer than 50 files from the last three years can receive an incorrectly ordered and incomplete newest-files list.

Files Needing Attention: extensions/visigrid/src/spreadsheet-files.ts

Important Files Changed

Filename	Overview
extensions/visigrid/src/spreadsheet-files.ts	Adds bounded batched stat processing and widening date windows, but the final fallback can still violate newest-first ordering by truncating unordered Spotlight output before stat.
extensions/visigrid/src/quick-calc.tsx	Removes the empty-clipboard precondition and uses generated command argument types; no remaining blocking failure is established.
extensions/visigrid/src/vgrid.ts	Resolves the CLI from preferences or standard Homebrew paths and uses the generated Preferences type.
extensions/visigrid/package.json	Defines the new extension’s commands, metadata, preference, and dependencies without an accepted blocking issue.
extensions/visigrid/src/peek.tsx	Implements spreadsheet previews through the shared discovery and VisiGrid execution helpers.
extensions/visigrid/src/open-workbook.tsx	Implements recent-workbook discovery and actions for opening or locating selected files.

Prompt To Fix All With AI

### Issue 1
extensions/visigrid/src/spreadsheet-files.ts:88
**Fallback Cap Breaks Recency Ordering**

If fewer than 50 spreadsheets were modified within the last three years but more than 2,000 older spreadsheets match, this slices unordered `mdfind` output before reading modification times. A newer file beyond the arbitrary cutoff is then omitted while an older selected file appears in the newest-first results.

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

_{Reviews (4): Last reviewed commit: "Discovery: widening date windows, bounde..." | Re-trigger Greptile}

[greptile-apps]

Fallback Cap Breaks Recency Ordering

If fewer than 50 spreadsheets were modified within the last three years but more than 2,000 older spreadsheets match, this slices unordered mdfind output before reading modification times. A newer file beyond the arbitrary cutoff is then omitted while an older selected file appears in the newest-first results.

Prompt To Fix With AI

This is a comment left during a code review.
Path: extensions/visigrid/src/spreadsheet-files.ts
Line: 88

Comment:
**Fallback Cap Breaks Recency Ordering**

If fewer than 50 spreadsheets were modified within the last three years but more than 2,000 older spreadsheets match, this slices unordered `mdfind` output before reading modification times. A newer file beyond the arbitrary cutoff is then omitted while an older selected file appears in the newest-first results.

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

[robertdoneill]

The cap is intentional and documented at its definition. The last three review rounds are in tension: statting every match is unbounded work (flagged in round 2), and any pre-stat truncation is imperfect ordering (flagged now). The fallback only triggers when fewer than 50 spreadsheets were modified in the past three years and more than 2,000 older files match — in that corner, exact mtime ordering among multi-year-old files has no user value, and bounded latency does. Happy to change the tradeoff if the Raycast team prefers a different one.