fix(settings): stop AI deep link from hijacking later settings opens

apps/desktop/src/App.vue

@@ -3509,6 +3509,7 @@ onUnmounted(() => {
                   class="flex-1 min-h-0"
                   @update:open="(open: boolean) => (open ? activateSettingsPage() : closeSettingsPage())"
                   @check-updates="checkUpdates()"
+                  @ai-config-deep-link-handled="settingsAiConfigDraft = null"
                 />
                 <div v-if="queryStore.tabs.length > 0" v-show="!driverStoreActive && !settingsStore.settingsPageActive" class="flex flex-col flex-1 min-h-0">
                   <SqlEditorWorkspace

apps/desktop/src/components/editor/EditorSettingsDialog.vue

@@ -279,6 +279,7 @@ const props = defineProps<{
 const emit = defineEmits<{
   "update:open": [value: boolean];
   "check-updates": [];
+  "ai-config-deep-link-handled": [];
 }>();
 
 const isSettingsPage = computed(() => props.variant === "page");
@@ -3966,6 +3967,7 @@ async function applyPendingAiConfigDeepLinkDraft() {
   if (!settingsVisible.value || !requestId || requestId === handledAiConfigRequestId || !draft) return;
 
   handledAiConfigRequestId = requestId;
+  emit("ai-config-deep-link-handled");
   activeSettingsTab.value = "ai";
   aiEnterEditMode();
   aiEditConfigName.value = draft.name;

apps/desktop/src/components/editor/__tests__/EditorSettingsDialog.aiConfigDeepLinkTabHijack.spec.ts

@@ -0,0 +1,35 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+
+const dialogSource = readFileSync(new URL("../EditorSettingsDialog.vue", import.meta.url), "utf8");
+const appSource = readFileSync(new URL("../../../App.vue", import.meta.url), "utf8");
+
+// Regression for https://github.com/t8y2/dbx/issues/7874: after using an AI
+// config deep link (dbx://settings/ai/new?...) once, every later "open
+// Settings" (even a plain click on the gear icon) got forcibly yanked back to
+// the AI tab. Root cause: `settingsAiConfigDraft`/`settingsAiConfigRequestId`
+// in App.vue are set once by `openAiConfigDeepLink` and never cleared, while
+// the dialog's own "already handled this request" guard
+// (`handledAiConfigRequestId`) is a plain local variable that resets to 0
+// every time the dialog remounts (it's `v-if`-toggled in App.vue, so closing
+// Settings destroys the instance). On the next open, `requestId !==
+// handledAiConfigRequestId` is true again even though nothing new happened,
+// so `applyPendingAiConfigDeepLinkDraft` reapplies the stale draft and jumps
+// the user back into "ai" tab / edit mode forever, once per app run.
+describe("EditorSettingsDialog AI config deep-link tab hijack", () => {
+  function applyDraftBlock(): string {
+    const start = dialogSource.indexOf("async function applyPendingAiConfigDeepLinkDraft()");
+    const end = dialogSource.indexOf("\n}\n", start);
+    if (start < 0 || end < 0) throw new Error("Missing applyPendingAiConfigDeepLinkDraft function block");
+    return dialogSource.slice(start, end);
+  }
+
+  it("emits an event once the deep-link draft has been consumed", () => {
+    expect(dialogSource).toContain('"ai-config-deep-link-handled": []');
+    expect(applyDraftBlock()).toContain('emit("ai-config-deep-link-handled")');
+  });
+
+  it("App.vue clears the draft/request state once notified, so a remounted dialog can't reapply it", () => {
+    expect(appSource).toContain('@ai-config-deep-link-handled="settingsAiConfigDraft = null"');
+  });
+});