⚡ Bolt: [performance improvement]

[ldsgroups225]

💡 What

Replaced the sequential for...of loop inside createBulkGrades with a single db.insert().values().returning() operation in a new createBulkStudentGrades query function.

🎯 Why

The previous implementation performed a validation check (verifying if the class belongs to the school) and an insert query for every single grade inside a for...of loop. This resulted in an N+1 query problem, making bulk grading extremely slow as the class size increased.

📊 Impact

Reduces database roundtrips for bulk grading from O(N) to O(1). Inserting grades for a class of 50 students now takes exactly 1 roundtrip for validation and 1 roundtrip for bulk insertion, instead of 100 roundtrips.

🔬 Measurement

Run the e2e or integration tests for bulk grading and observe the database query logs. The total time spent in the createBulkGrades server function should be significantly reduced.

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PR created automatically by Jules for task 12019950422987111199 started by @ldsgroups225

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 06fbd3a8-33ac-4a71-80ff-3d124958e76e

📥 Commits

Reviewing files that changed from the base of the PR and between 7e37ef8 and 5660ad5.

📒 Files selected for processing (3)

• .jules/bolt.md
• apps/school/src/school/functions/student-grades.ts
• packages/data-ops/src/queries/grades.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bolt-optimize-bulk-grades-12019950422987111199

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