Support mariadb 12 and sqlite migrations properly

[dkhalife]

No description provided.

[Copilot]

Pull request overview

Updates the API server’s database migrations to better support SQLite and MySQL/MariaDB (incl. MariaDB 12) by using dialect-specific DDL for schema creation and indexes.

Changes:

• Make the initial schema migration dialect-aware (SQLite vs MySQL/MariaDB) for column types, auto-increment, and index creation syntax.
• Update the Entra auth migration to create a partial unique index on SQLite and a generated-column-backed unique index on MySQL/MariaDB; add rollback cleanup for the generated columns.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
apiserver/internal/migrations/001_initial_schema.go	Adds dialect branching for initial DDL (types/auto-inc) and avoids unsupported CREATE INDEX IF NOT EXISTS on MySQL.
apiserver/internal/migrations/002_entra_auth.go	Changes unique index creation strategy for MySQL/MariaDB (generated columns) and cleans those columns up on Down().

[codecov]

Codecov Report

❌ Patch coverage is 0% with 69 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...piserver/internal/migrations/001_initial_schema.go	0.00%	54 Missing ⚠️
apiserver/internal/migrations/002_entra_auth.go	0.00%	15 Missing ⚠️

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