web: add memory document view

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

@@ -0,0 +1,123 @@
+<script lang="ts">
+  import { formatDate } from '$lib/workspace/api/http';
+  import type { PageProps } from './$types';
+
+  let { data }: PageProps = $props();
+
+  const lineCount = $derived(data.memory.data?.body_md.split('\n').length ?? 0);
+</script>
+
+<svelte:head>
+  <title>Memory Document · Yoi Workspace</title>
+  <meta name="description" content="Workspace Memory Document" />
+</svelte:head>
+
+<section class="card memory-document-card">
+  <div class="detail-heading">
+    <div>
+      <p class="eyebrow">Workspace memory</p>
+      <h2>Memory Document</h2>
+    </div>
+    {#if data.memory.data}
+      <span>{data.memory.data.bytes} bytes</span>
+    {/if}
+  </div>
+
+  <p class="section-note">
+    Durable workspace Memory as a single Markdown document. This view is read-only.
+  </p>
+
+  {#if data.memory.data}
+    <div class="memory-document-summary" aria-label="Memory document summary">
+      <div>
+        <span>Updated</span>
+        <strong>{formatDate(data.memory.data.updated_at)}</strong>
+      </div>
+      <div>
+        <span>Created</span>
+        <strong>{formatDate(data.memory.data.created_at)}</strong>
+      </div>
+      <div>
+        <span>Lines</span>
+        <strong>{lineCount}</strong>
+      </div>
+      <div>
+        <span>Source</span>
+        <strong>{data.memory.data.record_source}</strong>
+      </div>
+    </div>
+
+    {#if data.memory.data.body_md.trim().length === 0}
+      <p>No Memory document content is present.</p>
+    {:else}
+      <pre class="memory-document-body">{data.memory.data.body_md}</pre>
+    {/if}
+  {:else if data.memory.error}
+    <p class="error">{data.memory.error}</p>
+  {:else}
+    <p>Waiting for <code>/api/w/{data.workspaceId}/memory</code>…</p>
+  {/if}
+</section>
+
+<style>
+  .memory-document-card {
+    overflow: hidden;
+  }
+
+  .memory-document-summary {
+    display: grid;
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+    gap: 0.75rem;
+    margin: 1rem 0;
+  }
+
+  .memory-document-summary div {
+    border: 1px solid var(--line);
+    border-radius: 0.75rem;
+    background: var(--bg-raised);
+    padding: 0.8rem;
+  }
+
+  .memory-document-summary span {
+    color: var(--text-muted);
+    display: block;
+    font-size: 0.76rem;
+    font-weight: 600;
+    letter-spacing: 0.04em;
+    text-transform: uppercase;
+  }
+
+  .memory-document-summary strong {
+    color: var(--text);
+    display: block;
+    font-size: 0.95rem;
+    margin-top: 0.25rem;
+    overflow-wrap: anywhere;
+  }
+
+  .memory-document-body {
+    background: var(--bg-raised);
+    border: 1px solid var(--line);
+    border-radius: 0.9rem;
+    color: var(--text);
+    font-family: var(--font-mono);
+    font-size: 0.88rem;
+    line-height: 1.6;
+    margin: 1rem 0 0;
+    overflow: auto;
+    padding: 1rem;
+    white-space: pre-wrap;
+  }
+
+  @media (max-width: 900px) {
+    .memory-document-summary {
+      grid-template-columns: repeat(2, minmax(0, 1fr));
+    }
+  }
+
+  @media (max-width: 640px) {
+    .memory-document-summary {
+      grid-template-columns: 1fr;
+    }
+  }
+</style>

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

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+import { loadJson, workspaceApiPath } from "$lib/workspace/api/http";
+import type { MemoryDocumentResponse } from "$lib/workspace/sidebar/types";
+import type { PageLoad } from "./$types";
+
+export const load: PageLoad = async ({ fetch, params }) => {
+  return {
+    workspaceId: params.workspaceId,
+    memory: await loadJson<MemoryDocumentResponse>(
+      fetch,
+      workspaceApiPath(params.workspaceId, "/memory"),
+    ),
+  };
+};