elsa-core/src/modules/Elsa.Diagnostics.StructuredLogs.Persistence.Relational

Elsa Diagnostics Structured Logs Relational Persistence

This package contains the reusable relational storage layer for diagnostics structured logs. It is provider-neutral: concrete packages supply the connection factory, SQL dialect, and FluentMigrator runner wiring.

To add a new relational provider such as SQL Server or PostgreSQL:

1. Reference this package from the provider package.
2. Implement IRelationalStructuredLogConnectionFactory.
3. Implement IRelationalStructuredLogDialect for identifier quoting, parameter prefixing, and result limiting.
4. Implement IStructuredLogSchemaMigrator using FluentMigrator with the provider-specific runner.
5. Register those services and call AddRelationalStructuredLogPersistence.

The core Elsa.Diagnostics.StructuredLogs package must remain unaware of provider packages. Provider-specific SQL and migration runner dependencies belong in provider packages.

StructuredLogWriteBuffer reports dropped durable writes through the core IStructuredLogStorageDiagnostics contract. The core endpoint GET /diagnostics/structured-logs/storage returns that provider-neutral count for Studio and other diagnostics clients.