lucaslorentz / auto-compute / 23084474323

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main: 60%

Pull #19

github

Add automatic backfill SQL generation in migrations for computed properties

When a computed property is added or its expression changes, `dotnet ef migrations add`
now automatically generates `migrationBuilder.Sql("UPDATE ...")` to update existing records.

- SHA256 hash of expanded expression stored as permanent annotation for change detection
- Uses ExecuteUpdate + SqlCaptureInterceptor for provider-agnostic SQL generation
- Configurable via `EnableBackfillInMigrations` (enabled by default)
- Untranslatable expressions generate a friendly SQL comment
- Existing properties without hashes are skipped (assumes consistency)
- Removes code coverage threshold from CI

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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