fix(import): report partial settings imports

IMPLEMENTATION_PLAN.md

@@ -18,7 +18,7 @@ Constraints: local commits only; no push; no browser testing; one commit per fea
 ## Settings safety and validation
 
 - [x] Confirm before Restore Defaults removes preferences and remembered data.
-- [ ] Report partial imports accurately when custom icons cannot be restored.
+- [x] Report partial imports accurately when custom icons cannot be restored.
 - [ ] Reject malformed slash-prefixed regular expressions before saving site rules.
 
 ## Extension lifecycle and copy

extension/options/import-export.js

@@ -215,14 +215,15 @@ function importSettings() {
               importLocalSettings(scopedLocalSettings, function (localError) {
                 if (localError) {
                   showStatus(
-                    "Error: Failed to save local extension data - " +
-                      localError.message,
+                    "Settings imported, but custom icons could not be updated - " +
+                      localError.message +
+                      ". Reloading...",
                     true
                   );
-                  return;
+                } else {
+                  showStatus("Settings imported successfully. Reloading...");
                 }
 
-                showStatus("Settings imported successfully. Reloading...");
                 setTimeout(function () {
                   if (typeof restore_options === "function") {
                     restore_options();

tests/importExport.spec.js

@@ -137,9 +137,14 @@ describe("options/import-export.js", () => {
     expect(backup.localSettings.lucideTagsCacheV1At).toBeUndefined();
   });
 
-  it("imports wrapped backups, restores local data, and refreshes the options page", async () => {
+  it("reports partial success and refreshes when custom icons fail to import", async () => {
     const { chrome } = bootImportExport();
     window.restore_options = vi.fn();
+    chrome.storage.local.set.mockImplementationOnce(function(_items, callback) {
+      chrome.runtime.lastError = { message: "icon quota exceeded" };
+      callback();
+      chrome.runtime.lastError = null;
+    });
 
     const realCreateElement = document.createElement.bind(document);
     const fakeInput = realCreateElement("input");
@@ -197,6 +202,12 @@ describe("options/import-export.js", () => {
       { rememberSpeed: true, enabled: false },
       expect.any(Function)
     );
+    expect(document.querySelector("#status").textContent).toContain(
+      "Settings imported, but custom icons could not be updated"
+    );
+    expect(document.querySelector("#status").textContent).toContain(
+      "icon quota exceeded"
+    );
 
     vi.advanceTimersByTime(500);
     expect(window.restore_options).toHaveBeenCalled();