fix: keep macOS Dock icon consistent with bundle icon (#1166)

electron/main.cjs

@@ -596,15 +596,6 @@ if (!gotLock) {
       console.warn("[Main] Failed to install permission handlers:", err);
     }
 
-    // Set dock icon on macOS
-    if (isMac && appIcon && app.dock?.setIcon) {
-      try {
-        app.dock.setIcon(appIcon);
-      } catch (err) {
-        console.warn("Failed to set dock icon", err);
-      }
-    }
-
     // Build and set application menu. A broken menu should not take down
     // the entire app — fall back to no custom menu and continue startup.
     try {

scripts/mac-dock-icon.test.cjs

@@ -0,0 +1,17 @@
+const test = require("node:test");
+const assert = require("node:assert/strict");
+const fs = require("node:fs");
+const path = require("node:path");
+
+test("main process leaves macOS Dock icon to the packaged app bundle", () => {
+  const mainProcess = fs.readFileSync(
+    path.join(__dirname, "../electron/main.cjs"),
+    "utf8",
+  );
+
+  assert.equal(
+    mainProcess.includes("app.dock.setIcon"),
+    false,
+    "Do not override the macOS Dock icon at runtime; it can render at a different size than the bundled .icns icon.",
+  );
+});