fix(delegate-task): trust user-configured category models without fuzzy validation (fixes #2740)

src/tools/delegate-task/model-selection.test.ts

@@ -102,6 +102,16 @@ describe("resolveModelForDelegateTask", () => {
 
 				expect(result).toEqual({ model: "anthropic/claude-sonnet-4-6" })
 			})
+
+			test("#then trusts user-configured category model without fuzzy validation", () => {
+				const result = resolveModelForDelegateTask({
+					categoryDefaultModel: "new-api-openai/gpt-5.4-high",
+					isUserConfiguredCategoryModel: true,
+					availableModels: new Set(["openai/gpt-5.4"]),
+				})
+
+				expect(result).toEqual({ model: "new-api-openai/gpt-5.4-high" })
+			})
 		})
 
 		describe("#when user fallback models include variant syntax", () => {