feat: add persistent desktop assistant workspace

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

src/main/agent/runtime.ts

@@ -1,16 +1,41 @@
 import type {
+  ApprovalDecision,
   AgentEvent,
   AgentRequest,
   AgentRuntimeStatus
 } from '../../shared/contracts'
 
+export type RuntimeApprovalRequest = {
+  scopeKey: string
+  title: string
+  description: string
+  toolName?: string
+  argumentSummary?: string
+  allowPermanent?: boolean
+}
+
+export type RuntimeAuthorizer = (
+  request: RuntimeApprovalRequest
+) => Promise<ApprovalDecision>
+
 export interface AgentRuntime {
   readonly requiresToolApproval: boolean
   getStatus(): Promise<AgentRuntimeStatus>
+  testConnection?(): Promise<AgentRuntimeStatus>
   run(
-    request: AgentRequest,
+    request: AgentExecutionRequest,
     signal: AbortSignal,
-    authorize?: (requiresToolApproval: boolean) => Promise<void>
+    authorize?: RuntimeAuthorizer
   ): AsyncGenerator<AgentEvent, void, void>
   dispose(): Promise<void>
 }
+
+export type AgentImage = {
+  name: string
+  mediaType: 'image/png' | 'image/jpeg'
+  data: string
+}
+
+export type AgentExecutionRequest = AgentRequest & {
+  images?: AgentImage[]
+}