[management] Migrate events sqlite store to gorm

[bcmmbaga]

Describe your changes

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Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)
• Extended the README / documentation, if necessary

[Copilot]

Pull Request Overview

This PR migrates the events SQLite store from raw SQL to using GORM with updated models and migration logic while enhancing test coverage for legacy encrypted data handling.

• Migrates the event store and associated models to GORM.
• Replaces SQL migration logic with GORM-based migrations and updates tests accordingly.

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
management/server/event.go	Updates the event model with GORM annotations and fixes type conversion in event store.
management/server/activity/sqlite/sqlite.go	Converts raw SQLite handling to GORM including schema migrations and encrypted field processing.
management/server/activity/sqlite/migration_test.go	Updates tests to reflect new migration logic and GORM usage.
management/server/activity/sqlite/migration.go	Refactors migration functions to work with GORM, including handling legacy encryption and duplicate records.
go.mod	Adjusts dependency ordering by moving the go-sqlite3 module to an indirect dependency.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
2 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud