Fix targetInstallation scope error in bot API

[ishaileshpant]

🐛 Problem

The content submission was failing with error: targetInstallation is not defined

🔍 Root Cause

The targetInstallation variable was declared inside a try-catch block but was being used outside of it, causing a scope error.

✅ Solution

• Declare targetInstallation variable outside the try-catch block
• Assign it inside the try-catch block
• Make it accessible throughout the function scope

🧪 Testing

• Fixed variable scope issue
• Test content submission locally
• Verify end-to-end functionality

🎯 Expected Result

Content submission should work without the targetInstallation is not defined error.

Fixes the issue where users get:

Content submission is temporarily unavailable. GitHub App error.
details: { githubAppError: "targetInstallation is not defined" }

[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
prepguides-dev	Ready	Preview	Comment	Oct 13, 2025 4:32pm

[ishaileshpant]

/approve

[github-actions]

🚀 Admin-Approved and Auto-Merged!

This PR has been automatically merged to main after admin approval by @ishaileshpant.

✅ **Status**: Merged and deployed
🔗 **Commit**: `0356ef5ce9d0f14c2c455c37eb7b17082ac6d942`
📅 **Merged at**: 2025-10-13T16:36:11.447Z
👤 **Approved by**: Admin/Maintainer/Owner

Thank you for your contribution! 🎉