frontend/src/components/AppShell.vue

@@ -202,6 +202,39 @@ watch(
   },
 );
 
+/**
+ * What to call the lens currently in view.
+ *
+ * Keyed off the route name rather than each view declaring its own title, so the
+ * label sits in one place and can't go missing (the board and search never had one)
+ * or drift in styling (timeline, reminders and graph each had their own h1).
+ *
+ * A label lens is named by the label itself — "Groceries" is what the user came
+ * looking for; "Label" would tell them nothing they didn't already know.
+ */
+const lensName = computed<string>(() => {
+  switch (route.name) {
+    case "archive":
+      return "Archive";
+    case "trash":
+      return "Trash";
+    case "search":
+      return "Search";
+    case "timeline":
+      return "Timeline";
+    case "reminders":
+      return "Reminders";
+    case "graph":
+      return "Graph";
+    case "label":
+      // The store may not have loaded yet on a deep link; fall back rather than
+      // flashing an empty slot.
+      return labels.items.find((l) => l.id === String(route.params.id))?.name ?? "Label";
+    default:
+      return "Notes";
+  }
+});
+
 async function signOut() {
   await session.logout();
   await router.replace("/login");
@@ -248,6 +281,20 @@ async function signOut() {
           <span class="hidden font-semibold sm:inline">{{ config.siteName }}</span>
         </RouterLink>
 
+        <!-- The active lens, named in the persistent chrome rather than inside each
+             view. Which lens you're looking at is a property of the SPACE, not of a
+             page you navigated to — so it sits in the bar that never moves, beside
+             the app name, and stays in one place while everything beneath it
+             re-filters. Replaces the per-view <h1>s, which sat in a different spot
+             in each view and were absent entirely on the board and in search. -->
+        <span aria-live="polite" class="flex min-w-0 shrink items-center gap-2 text-sm text-neutral-400">
+          <!-- The separator only makes sense next to the app name, which is itself
+               hidden on narrow screens. There, the lens name simply takes the space
+               the app name vacated — you already know which app you're in. -->
+          <span aria-hidden="true" class="hidden sm:inline">/</span>
+          <span class="truncate font-medium text-neutral-600 dark:text-neutral-300">{{ lensName }}</span>
+        </span>
+
         <div class="flex flex-1 justify-center">
           <input
             ref="searchInput"

frontend/src/views/GraphView.vue

@@ -304,8 +304,8 @@ onBeforeUnmount(() => {
 
 <template>
   <div class="flex h-full flex-col p-4">
-    <div class="mb-3 flex flex-wrap items-center justify-between gap-3">
-      <h1 class="text-lg font-semibold">Graph</h1>
+    <!-- Titled by the shell's persistent lens name (task 1913). -->
+    <div class="mb-3 flex flex-wrap items-center justify-end gap-3">
       <div class="flex items-center gap-3 text-sm">
         <label class="flex cursor-pointer items-center gap-1.5 text-neutral-600 dark:text-neutral-300">
           <input type="checkbox" class="accent-brand" :checked="showLabels" @change="toggleLabels" />

frontend/src/views/RemindersView.vue

@@ -33,8 +33,8 @@ onMounted(load);
 
 <template>
   <div class="mx-auto w-full max-w-2xl px-4 py-6">
-    <div class="mb-2 flex items-center justify-between gap-3">
-      <h1 class="text-lg font-semibold">Reminders</h1>
+    <!-- Titled by the shell's persistent lens name (task 1913). -->
+    <div class="mb-2 flex items-center justify-end gap-3">
       <button
         v-if="reminders.osSupported && !reminders.osEnabled"
         type="button"

frontend/src/views/TimelineView.vue

@@ -102,8 +102,10 @@ onMounted(load);
 
 <template>
   <div class="mx-auto w-full max-w-6xl px-4 py-6">
-    <div class="mb-1 flex flex-wrap items-center justify-between gap-3">
-      <h1 class="text-lg font-semibold">Timeline</h1>
+    <!-- No <h1> here: the shell's persistent bar names the active lens (task 1913),
+         so a per-view title would say the same thing twice, in a place that scrolls
+         away. -->
+    <div class="mb-1 flex flex-wrap items-center justify-end gap-3">
       <div class="flex flex-wrap items-center gap-2 text-sm">
         <label class="flex items-center gap-1.5 text-neutral-500 dark:text-neutral-400">
           <span>From</span>