Add L0 index and anchor UI updates

modules/story-summary/vector/llm/llm-service.js

@@ -0,0 +1,72 @@
+// ═══════════════════════════════════════════════════════════════════════════
+// vector/llm/llm-service.js
+// ═══════════════════════════════════════════════════════════════════════════
+
+import { xbLog } from '../../../../core/debug-core.js';
+
+const MODULE_ID = 'vector-llm-service';
+
+// 唯一 ID 计数器
+let callCounter = 0;
+
+function getStreamingModule() {
+    const mod = window.xiaobaixStreamingGeneration;
+    return mod?.xbgenrawCommand ? mod : null;
+}
+
+function generateUniqueId(prefix = 'llm') {
+    callCounter = (callCounter + 1) % 100000;
+    return `${prefix}-${callCounter}-${Date.now().toString(36)}`;
+}
+
+function b64UrlEncode(str) {
+    const utf8 = new TextEncoder().encode(String(str));
+    let bin = '';
+    utf8.forEach(b => bin += String.fromCharCode(b));
+    return btoa(bin).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
+}
+
+/**
+ * 统一LLM调用 - 走酒馆后端（非流式）
+ */
+export async function callLLM(messages, options = {}) {
+    const {
+        temperature = 0.2,
+        max_tokens = 500,
+    } = options;
+
+    const mod = getStreamingModule();
+    if (!mod) throw new Error('生成模块未加载');
+
+    const top64 = b64UrlEncode(JSON.stringify(messages));
+
+    // ★ 每次调用用唯一 ID，避免 session 冲突
+    const uniqueId = generateUniqueId('l0');
+
+    const args = {
+        as: 'user',
+        nonstream: 'true',
+        top64,
+        id: uniqueId,
+        temperature: String(temperature),
+        max_tokens: String(max_tokens),
+    };
+
+    try {
+        // 非流式直接返回结果
+        const result = await mod.xbgenrawCommand(args, '');
+        return String(result ?? '');
+    } catch (e) {
+        xbLog.error(MODULE_ID, 'LLM调用失败', e);
+        throw e;
+    }
+}
+
+export function parseJson(text) {
+    if (!text) return null;
+    let s = text.trim().replace(/^```(?:json)?\s*/i, '').replace(/\s*```$/i, '').trim();
+    try { return JSON.parse(s); } catch { }
+    const i = s.indexOf('{'), j = s.lastIndexOf('}');
+    if (i !== -1 && j > i) try { return JSON.parse(s.slice(i, j + 1)); } catch { }
+    return null;
+}