[Smart Accounts Kit] Add troubleshoot page for user op reverted

[AyushBherwani1998]

Description

• Adds a new page for user operation reverted.

Issue(s) fixed

Fixes #2761

Preview

Checklist

• If this PR updates or adds documentation content that changes or adds technical meaning, it has received an approval from an engineer or DevRel from the relevant team.
• If this PR updates or adds documentation content, it has received an approval from a technical writer.

External contributor checklist

• I've read the contribution guidelines.
• I've created a new issue (or assigned myself to an existing issue) describing what this PR addresses.

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Note

Low Risk
Low risk documentation-only change that adds a new troubleshooting page and links it in the sidebar; no runtime code or business logic is affected.

Overview
Adds a new Smart Accounts Kit troubleshooting doc for "user operation reverted" errors that surface as empty revert data (0x), outlining common causes (missing function selector/contract, bare revert, inner-call OOG, insufficient balance/allowance) and suggested debugging steps.

Updates gator-sidebar.js to include the new troubleshooting/user-operation-reverted page under the Troubleshooting section.

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Project	Deployment	Actions	Updated (UTC)
metamask-docs	Ready	Preview, Comment	Mar 20, 2026 9:47am