fix: revert delegate-task to string category schema, fix mock isolation and restore UB7 originals

src/tools/delegate-task/task-schema.test.ts

@@ -3,7 +3,7 @@ const { describe, expect, test } = require("bun:test")
 import { createDelegateTask } from "./tools"
 
 	describe("createDelegateTask schema", () => {
-	test("#given category arg #when tool is created #then category is constrained to available enum values", () => {
+	test("#given category arg #when tool is created #then category accepts any string", () => {
 		//#given
 		const toolDefinition = createDelegateTask({ manager: {} as never, client: {} as never, directory: "/tmp/test" })
 
@@ -13,16 +13,12 @@ import { createDelegateTask } from "./tools"
 				type: string
 				innerType: {
 					def: { type: string }
-					options: string[]
 				}
 			}
 		}
 
 		//#then
 		expect(categorySchema.def.type).toBe("optional")
-		expect(categorySchema.def.innerType.def.type).toBe("enum")
-		expect(categorySchema.def.innerType.options).toContain("quick")
-		expect(categorySchema.def.innerType.options).toContain("deep")
-		expect(categorySchema.def.innerType.options).toContain("ultrabrain")
+		expect(categorySchema.def.innerType.def.type).toBe("string")
 	})
 })