fix(web): distinguish empty resident context

web/workspace/src/routes/w/[workspaceId]/memory/[subjectId]/+page.svelte

@@ -47,6 +47,13 @@
     return 'Generation failed';
   }
 
+  function surfaceSummary(availability: SubjektivResidentSurfaceAvailability): string {
+    if (availability !== 'ready') return 'No current generated context is available to use.';
+    return snapshot?.body_md.trim()
+      ? 'Current generated context is available.'
+      : 'A current empty surface exists; there is no resident context to show.';
+  }
+
   function subjectStateLabel(state: 'active' | 'retired'): string {
     return state === 'active' ? 'Available' : 'Retired';
   }
@@ -95,7 +102,7 @@
         <span>Resident context</span>
         {#if surface}
           <strong class="availability is-{surface.availability}">{surfaceLabel(surface.availability)}</strong>
-          <p>{surface.availability === 'ready' ? 'Current generated context is available.' : 'No current generated context is available to use.'}</p>
+          <p>{surfaceSummary(surface.availability)}</p>
         {:else}
           <strong>Unavailable</strong>
           <p>The resident context status could not be read.</p>

web/workspace/src/routes/w/[workspaceId]/memory/memory-page.browser.spec.ts

@@ -1,6 +1,12 @@
 // @vitest-environment happy-dom
 
-import { cleanup, fireEvent, render, screen, waitFor } from "@testing-library/svelte";
+import {
+  cleanup,
+  fireEvent,
+  render,
+  screen,
+  waitFor,
+} from "@testing-library/svelte";
 import { afterEach, expect, test, vi } from "vitest";
 
 const { gotoMock } = vi.hoisted(() => ({
@@ -181,7 +187,9 @@ test("preserves invalid and rejected role drafts with accessible errors", async
 });
 
 test("warns about an unknown create outcome without replaying the POST", async () => {
-  const fetchMock = vi.fn(() => Promise.reject(new TypeError("connection reset")));
+  const fetchMock = vi.fn(() =>
+    Promise.reject(new TypeError("connection reset"))
+  );
   vi.stubGlobal("fetch", fetchMock);
   render(SubjectIndexPage, { data: subjectIndexData() } as never);
 
@@ -218,7 +226,8 @@ test("renders a ready resident surface and committed Memory lifecycle states", a
         availability: "ready" as const,
         snapshot: {
           snapshot_id: "snapshot-1",
-          body_md: "# Resident context\n\nUse the **current** committed record.",
+          body_md:
+            "# Resident context\n\nUse the **current** committed record.",
           memory_refs: [{ memory_id: "memory-1", revision: 3 }],
           built_from_store_revision: 9,
           created_at: "2026-01-02T03:04:05Z",
@@ -308,6 +317,7 @@ test("distinguishes ready-empty, stale, failed, unavailable, and request error s
   } as never);
   expect(screen.getByText("Resident context is current but empty.")).not
     .toBeNull();
+  expect(screen.getByText(/current empty surface exists/)).not.toBeNull();
   expect(screen.getByText("No committed Memories yet.")).not.toBeNull();
 
   await view.rerender(