feat(web): SSE 分析 API 封装 + 化验报告页 AI 解读按钮

- 新增 analysisSse.ts SSE 流式分析 API 封装（ReadableStream 解析）
- 化验报告页操作列添加 AI 解读按钮（SSE 实时流式输出）
- 分析结果展示在 Table 下方的 Card 中

apps/web/src/api/ai/analysisSse.ts

@@ -0,0 +1,96 @@
+export type AnalysisType = 'lab-report' | 'trends' | 'checkup-plan' | 'report-summary';
+
+interface AnalyzeBody {
+  report_id?: string;
+  patient_id?: string;
+  metrics?: string[];
+}
+
+const ENDPOINT_MAP: Record<AnalysisType, string> = {
+  'lab-report': '/ai/analyze/lab-report',
+  'trends': '/ai/analyze/trends',
+  'checkup-plan': '/ai/analyze/checkup-plan',
+  'report-summary': '/ai/analyze/report-summary',
+};
+
+export interface SseCallbacks {
+  onChunk: (content: string, index: number) => void;
+  onError: (message: string) => void;
+  onDone: (analysisId: string) => void;
+}
+
+export async function startAnalysis(
+  type: AnalysisType,
+  body: AnalyzeBody,
+  callbacks: SseCallbacks,
+): Promise<AbortController> {
+  const controller = new AbortController();
+  const endpoint = ENDPOINT_MAP[type];
+
+  const token = localStorage.getItem('hms-token');
+  const resp = await fetch(`/api/v1${endpoint}`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      Authorization: `Bearer ${token}`,
+    },
+    body: JSON.stringify(body),
+    signal: controller.signal,
+  });
+
+  if (!resp.ok) {
+    const err = await resp.json().catch(() => ({ message: '分析请求失败' }));
+    callbacks.onError(err?.message || `HTTP ${resp.status}`);
+    return controller;
+  }
+
+  const reader = resp.body?.getReader();
+  if (!reader) {
+    callbacks.onError('无法读取响应流');
+    return controller;
+  }
+
+  const decoder = new TextDecoder();
+  let chunkIndex = 0;
+  let buffer = '';
+
+  (async () => {
+    try {
+      while (true) {
+        const { done, value } = await reader.read();
+        if (done) break;
+
+        buffer += decoder.decode(value, { stream: true });
+        const lines = buffer.split('\n');
+        buffer = lines.pop() || '';
+
+        for (const line of lines) {
+          if (line.startsWith('data: ')) {
+            const data = line.slice(6);
+            if (data === '[DONE]') {
+              continue;
+            }
+            try {
+              const event = JSON.parse(data);
+              if (event.type === 'chunk' && event.content) {
+                callbacks.onChunk(event.content, chunkIndex++);
+              } else if (event.type === 'done' && event.analysis_id) {
+                callbacks.onDone(event.analysis_id);
+              } else if (event.type === 'error') {
+                callbacks.onError(event.message || '分析出错');
+              }
+            } catch {
+              // 非 JSON 行，跳过
+            }
+          }
+        }
+      }
+    } catch (err) {
+      if (!controller.signal.aborted) {
+        callbacks.onError(err instanceof Error ? err.message : '连接中断');
+      }
+    }
+  })();
+
+  return controller;
+}