liarsdice::database::SchemaManager class
#include <liarsdice/database/schema_manager.hpp>

Manages database schema versioning and migrations.

This class handles:

Constructors, destructors, conversion operators

void add_migration(std::unique_ptr<Migration> migration): Add a migration to the manager.
auto load_migrations_from_directory(const boost::filesystem::path& dir) -> DatabaseResult<int>: Load migrations from a directory.
auto get_current_version() -> DatabaseResult<int>: Get current schema version.
auto get_applied_migrations() -> DatabaseResult<std::vector<SchemaVersion>>: Get all applied migrations.
auto is_version_applied(int version) -> DatabaseResult<bool>: Check if a specific version is applied.
auto migrate_to(int target_version = -1) -> DatabaseResult<void>: Migrate to a specific version.
auto rollback_to(int target_version) -> DatabaseResult<void>: Rollback to a specific version.
auto get_pending_migrations() -> DatabaseResult<std::vector<Migration*>>: Get pending migrations.
auto validate_migrations() -> DatabaseResult<void>: Validate all migrations.
auto clean_migration_history() -> DatabaseResult<void>: Clean migration history (remove orphaned entries)
auto baseline(int version, const std::string& description) -> DatabaseResult<void>: Create a baseline version.

Load migrations from a directory.

Parameters
dir	Directory containing migration files

Expected file naming convention:

Migrate to a specific version.

Parameters
target_version	Target version (-1 for latest)

Rollback to a specific version.

Parameters
target_version	Target version to rollback to

Create a baseline version.

Parameters
version	Version to mark as baseline
description