import type {  ProviderInstanceId,  ProviderDriverKind,  ProviderSessionRuntimeStatus,  RuntimeMode,  ThreadId,} from "@t3tools/contracts";import * as Option from "effect/Option";import * as Context from "effect/Context";import type * as Effect from "effect/Effect"; import type {  ProviderSessionDirectoryPersistenceError,  ProviderValidationError,} from "../Errors.ts"; export interface ProviderRuntimeBinding {  readonly threadId: ThreadId;  readonly provider: ProviderDriverKind;  /**   * Routing key for the configured provider instance that owns this   * session. The persistence layer promotes legacy null rows before   * exposing bindings; runtime callers must not infer this from `provider`.   */  readonly providerInstanceId?: ProviderInstanceId;  readonly adapterKey?: string;  readonly status?: ProviderSessionRuntimeStatus;  readonly resumeCursor?: unknown | null;  readonly runtimePayload?: unknown | null;  readonly runtimeMode?: RuntimeMode;} export interface ProviderRuntimeBindingWithMetadata extends ProviderRuntimeBinding {  readonly lastSeenAt: string;} export type ProviderSessionDirectoryReadError = ProviderSessionDirectoryPersistenceError; export type ProviderSessionDirectoryWriteError =  | ProviderValidationError  | ProviderSessionDirectoryPersistenceError; export interface ProviderSessionDirectoryShape {  readonly upsert: (    binding: ProviderRuntimeBinding,  ) => Effect.Effect<void, ProviderSessionDirectoryWriteError>;   readonly getProvider: (    threadId: ThreadId,  ) => Effect.Effect<ProviderDriverKind, ProviderSessionDirectoryReadError>;   readonly getBinding: (    threadId: ThreadId,  ) => Effect.Effect<Option.Option<ProviderRuntimeBinding>, ProviderSessionDirectoryReadError>;   readonly listThreadIds: () => Effect.Effect<    ReadonlyArray<ThreadId>,    ProviderSessionDirectoryPersistenceError  >;   readonly listBindings: () => Effect.Effect<    ReadonlyArray<ProviderRuntimeBindingWithMetadata>,    ProviderSessionDirectoryPersistenceError  >;} export class ProviderSessionDirectory extends Context.Service<  ProviderSessionDirectory,  ProviderSessionDirectoryShape>()("t3/provider/Services/ProviderSessionDirectory") {}