prerequisites and build fixes

Author: gallayl

frontend/src/components/entity-forms/prerequisite-form.tsx

@@ -119,10 +119,7 @@ export const PrerequisiteForm = Shade<PrerequisiteFormProps>({
           options={typeOptions}
           value={props.initial?.type ?? ''}
           placeholder="Select a prerequisite type..."
-          onchange={(ev) => {
-            const value = (ev.target as HTMLSelectElement).value as PrerequisiteType
-            setSelectedType(value)
-          }}
+          onValueChange={(value) => setSelectedType(value as PrerequisiteType)}
         />
 
         {(selectedType === 'node' || selectedType === 'yarn') && (

frontend/src/components/prerequisite-table.tsx

@@ -201,6 +201,16 @@ export const PrerequisiteTable = Shade<PrerequisiteTableProps>({
 
     return (
       <div>
+        <div style={{ display: 'flex', justifyContent: 'flex-end', marginBottom: '8px' }}>
+          <Button
+            variant="outlined"
+            size="small"
+            onclick={() => setIsCreating(true)}
+            startIcon={<Icon icon={icons.plus} size="small" />}
+          >
+            Add Prerequisite
+          </Button>
+        </div>
         <DataGrid<Prerequisite, PrerequisiteColumn>
           columns={['name', 'type', 'status', 'actions']}
           findOptions={findOptions}

service/src/app-models/prerequisites/actions/check-prerequisite-action.spec.ts

@@ -9,7 +9,7 @@ import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 import { runCheck, CheckPrerequisiteAction } from './check-prerequisite-action.js'
 
 const execFileMock = vi.hoisted(() =>
-  vi.fn<[string, string[], { timeout: number }], Promise<{ stdout: string; stderr: string }>>(),
+  vi.fn<(cmd: string, args: string[], options: { timeout: number }) => Promise<{ stdout: string; stderr: string }>>(),
 )
 
 vi.mock('child_process', () => ({

service/src/app-models/stacks/actions/import-export-actions.spec.ts

@@ -20,7 +20,7 @@ import { ImportStackAction } from './import-stack-action.js'
 class AutoIncrementStore<T extends { id: number }> extends InMemoryStore<T, 'id'> {
   private nextId = 1
 
-  async add(...items: T[]): Promise<T[]> {
+  public async add(...items: T[]) {
     const withIds = items.map((item) => ({
       ...item,
       id: item.id || this.nextId++,

service/src/mcp/mcp-server.ts

@@ -280,11 +280,11 @@ export const createMcpRequestHandler = (injector: Injector, sessionManager: McpS
         const mcp = createMcpServer(injector, elevated)
         await mcp.connect(transport)
 
+        await transport.handleRequest(req, res)
+
         if (transport.sessionId) {
           sessionManager.register(transport.sessionId, transport)
         }
-
-        await transport.handleRequest(req, res)
         return
       }