feat: add multi-session desktop workspace

src/bridge/service.js

@@ -1,5 +1,9 @@
 import path from "node:path";
-import { createAgentRegistry, UnknownAgentError } from "./agent-registry.js";
+import {
+	createAgentRegistry,
+	UnknownAgentError,
+	UnknownRuntimeError,
+} from "./agent-registry.js";
 import { startPiRpcAdapter } from "./pi-rpc-adapter.js";
 import { ProtocolError } from "../protocol/index.js";
 import { createRuntimePaths, startBridgeServer } from "./runtime.js";
@@ -32,6 +36,35 @@ export async function startBridgeService({
 					};
 				case "forget_directory":
 					return registry.forgetDirectory(request.payload.worktreePath);
+				case "get_workspace":
+					return registry.getWorkspace();
+				case "get_workspace_summary":
+					return registry.getWorkspaceSummary();
+				case "create_session_runtime":
+					return {
+						runtime: await registry.createSessionRuntime(
+							request.payload.worktreePath,
+						),
+					};
+				case "open_session_runtime":
+					return {
+						runtime: await registry.openSessionRuntime(
+							request.payload.worktreePath,
+							request.payload.sessionPath,
+						),
+					};
+				case "close_session_runtime":
+					return registry.closeSessionRuntime(request.payload.runtimeId);
+				case "list_directory_sessions":
+					return {
+						sessions: await registry.listDirectorySessions(
+							request.payload.worktreePath,
+						),
+					};
+				case "get_session_runtime_snapshot":
+					return registry.getSessionRuntimeSnapshot(request.payload.runtimeId);
+				case "subscribe_workspace":
+					return registry.workspaceEventsAfter(request.payload.cursor ?? 0);
 				case "subscribe":
 					return {
 						events: registry.eventsAfter(
@@ -51,6 +84,8 @@ export async function startBridgeService({
 		} catch (error) {
 			if (error instanceof UnknownAgentError)
 				throw new ProtocolError("unknown_agent", error.message);
+			if (error instanceof UnknownRuntimeError)
+				throw new ProtocolError("unknown_runtime", error.message);
 			throw error;
 		}
 	};
@@ -59,6 +94,22 @@ export async function startBridgeService({
 		runtimeDir,
 		handleRequest: dispatch,
 		subscribe: (request, notify) => {
+			if (request.op === "subscribe_workspace") {
+				const subscription = registry.subscribeWorkspace(
+					request.payload.cursor ?? 0,
+					notify,
+				);
+				return {
+					result: {
+						bridgeInstanceId: subscription.bridgeInstanceId,
+						firstAvailableSeq: subscription.firstAvailableSeq,
+						latestSeq: subscription.latestSeq,
+						truncated: subscription.truncated,
+						events: subscription.events,
+					},
+					unsubscribe: subscription.unsubscribe,
+				};
+			}
 			const subscription = registry.subscribe(
 				request.agentId,
 				request.payload.cursor ?? 0,