Add ZImageTurbo calculation info message and regression test

Author: Azornes

js/drawing/resolution_master_draw_methods.js

@@ -719,6 +719,8 @@ export const drawingMethods = {
             return "💡 HiDream Dev: Uses the closest HiDream Dev preset size.";
         } else if (category === "Qwen-Image") {
             return "💡 Qwen-Image: Resolution range: ~0.6MP-4.2MP. If input is already in this range, it remains unchanged.";
+        } else if (category === "ZImageTurbo") {
+            return "💡 ZImageTurbo Mode: Uses the closest active preset size while preserving orientation. Built-in presets use official resolutions.";
         } else if (['Standard', 'Social Media', 'Print', 'Cinema', 'Display Resolutions'].includes(category)) {
             return "💡 Calc Mode: Uses the closest preset aspect ratio while keeping the size close to your current resolution.";
         }

tests/js/resolution_master_draw_methods.test.mjs

@@ -0,0 +1,16 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import { drawingMethods } from "../../js/drawing/resolution_master_draw_methods.js";
+
+
+test("ZImageTurbo calculation info describes active preset matching", () => {
+    const context = {
+        node: { properties: { selectedCategory: "ZImageTurbo" } }
+    };
+
+    assert.equal(
+        drawingMethods.getCalcInfoMessage.call(context),
+        "💡 ZImageTurbo Mode: Uses the closest active preset size while preserving orientation. Built-in presets use official resolutions."
+    );
+});