chore: establish Strategy Lab source baseline (development, not release)

1 files changed, 84 insertions, 0 deletions

diff --git a/frontend/src/pages/UsagePage.svelte b/frontend/src/pages/UsagePage.svelte
new file mode 100644
index 0000000..88dd8a5
--- /dev/null
+++ b/frontend/src/pages/UsagePage.svelte
@@ -0,0 +1,84 @@
+<script lang="ts">
+  import Page from '../components/Page.svelte';
+  import Status from '../components/Status.svelte';
+  import { getAIUsage } from '../lib/client';
+  import { extractStatusMessage } from '../lib/state';
+  import { fmtDateTime, fmtNum } from '../lib/format';
+  import type { AIUsage } from '../lib/types';
+
+  let usage = $state<AIUsage | null>(null);
+  let busy = $state(true);
+  let error = $state<string | null>(null);
+
+  $effect(() => {
+    void load();
+  });
+
+  async function load() {
+    busy = true;
+    error = null;
+    try {
+      usage = await getAIUsage();
+    } catch (e) {
+      error = extractStatusMessage(e);
+    } finally {
+      busy = false;
+    }
+  }
+</script>
+
+<Page title="AI 用量" subtitle="内部 POC 阶段的用量计量与限额参考。不含报价或计费">
+  <div class="stack">
+    <Status busy={busy} error={error} busyText="正在载入用量…" empty={null} />
+    {#if usage}
+      <div class="card">
+        <div class="row spaced">
+          <div>
+            <div class="mlabel">模型请求</div>
+            <div class="mvalue">{usage.totals?.requests ?? usage.items.length}</div>
+          </div>
+          <div>
+            <div class="mlabel">输入 tokens</div>
+            <div class="mvalue">{usage.totals?.input_tokens ?? '—'}</div>
+          </div>
+          <div>
+            <div class="mlabel">输出 tokens</div>
+            <div class="mvalue">{usage.totals?.output_tokens ?? '—'}</div>
+          </div>
+        </div>
+        {#if usage.internal_poc}
+          <p class="hint">内部 POC：请在当前配额内使用，不对实际价格负责；接受模型输出的决策需重新人工复核。</p>
+        {/if}
+      </div>
+
+      {#if usage.items.length > 0}
+        <div class="card" style="padding:0.4rem 0.6rem">
+          <table class="data">
+            <thead>
+              <tr>
+                <th>时间</th>
+                <th>模型</th>
+                <th>输入</th>
+                <th>输出</th>
+                <th>状态</th>
+              </tr>
+            </thead>
+            <tbody>
+              {#each usage.items as it, i (it.id)}
+                <tr>
+                  <td>{fmtDateTime(it.created_at)}</td>
+                  <td>{it.model}</td>
+                  <td class="num">{it.input_tokens ?? '—'}</td>
+                  <td class="num">{it.output_tokens ?? '—'}</td>
+                  <td class="badge">{it.status ?? '—'}</td>
+                </tr>
+              {/each}
+            </tbody>
+          </table>
+        </div>
+      {:else}
+        <Status busy={false} empty="尚未使用 AI 建议" emptyHint="在项目「策略」标签发起一次 AI 修改，记录会出现在这里" />
+      {/if}
+    {/if}
+  </div>
+</Page>