Update event bus tests to avoid cross-test interference and ensure proper cleanup. In LocalDistributedEventBus_Test and LocalEventBus_Anonymous_Test: reset static handler state in test constructor, subscribe with IDisposable (using var subscription) so handlers are disposed after each test, replace hard-coded event names with generated unique event names, add missing System import, and adjust assertions (remove expectation of AbpException on publish after dispose). Also ensure local event bus subscriptions are stored/disposed. These changes make tests isolated and robust.
Introduce AnonymousEventData and add support for anonymous (name-based) events across the event bus implementations. Adds string-based Subscribe/Unsubscribe APIs, anonymous handler factories, and handling in distributed providers (Azure, Dapr, Kafka, RabbitMQ, Rebus) and local buses. Update EventBusBase and DistributedEventBusBase to resolve event names/data (GetEventName/GetEventData/ResolveEventForPublishing) and route/serialize/deserialize anonymous payloads. Also add AnonymousEventHandlerFactoryUnregistrar and minimal NullDistributedEventBus implementations, plus tests for anonymous local events.
Refactored GetOrAddMany and GetOrAddManyAsync in DistributedCache to ensure returned key-value pairs are correctly mapped by key, regardless of order from the factory. Added unit tests to verify correct mapping and concurrency behavior.
Updated ChatClientAccessor and TypedChatClient to fallback to the default chat client if a workspace-specific client is not configured. Adjusted tests to verify that the default chat client is resolved for non-configured workspaces.
Introduces AppEntityWithJsonProperty and related DbSet to test contexts, configures model to handle owned JSON properties, and adds tests to verify entity history tracking for nested JSON property changes and shared entities. Refactors EntityHistoryHelper to improve navigation property change handling.