Refactored data provider service registrations

[prochnowc]

Closes #27

[Copilot]

Pull Request Overview

This PR refactors how data providers are registered and resolved, replacing the custom ProviderRegistration approach with keyed DI registrations and factories. Major updates include renaming configuration properties, introducing MongoClientProvider, and simplifying constructors in MongoDB/EF providers.

• Replace ProviderRegistration with keyed service descriptors in DataProviderBuilderExtensions
• Update DataProviderResolver to directly resolve via IEnumerable<IDataProvider>
• Rename Database → DatabaseName in options and wire up MongoClientProvider

Reviewed Changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/AppCoreNet.Data/DependencyInjection/DataProviderBuilderExtensions.cs	Replaced custom registrations with keyed DI patterns
src/AppCoreNet.Data/DataProviderResolver.cs	Simplified resolution logic, updated error message
src/AppCoreNet.Data.MongoDB/MongoRepository.cs	Added overridable GetPrimaryKey for complex IDs
src/AppCoreNet.Data.MongoDB/DependencyInjection/MongoDataProviderBuilderExtensions.cs	Introduced MongoClientProvider and updated builder
test/AppCoreNet.Data.MongoDB.Tests/MongoTestEntity2Repository.cs	Added unused usings and left commented-out override stub

Comments suppressed due to low confidence (2)

src/AppCoreNet.Data/DataProviderResolver.cs:27

• [nitpick] The exception message could be clearer if it follows the pattern in other providers, e.g. Data provider with name '{name}' is not registered. for consistency.

            throw new InvalidOperationException($"There is no data provider registered with '{name}'.");

src/AppCoreNet.Data.MongoDB/MongoRepository.cs:157

• You've introduced a customizable GetPrimaryKey method; consider adding unit tests covering primitive, Guid, and complex ID scenarios to ensure correct BSON conversion.

    protected virtual BsonValue GetPrimaryKey(TId id)