fix: 缩短事件节点图谱标签

extractor.js

@@ -15,6 +15,10 @@ import {
   updateNode,
 } from "./graph.js";
 import { callLLMForJSON } from "./llm.js";
+import {
+  ensureEventTitle,
+  getNodeDisplayName,
+} from "./node-labels.js";
 import { RELATION_TYPES } from "./schema.js";
 import {
   buildNodeVectorText,
@@ -206,6 +210,8 @@ export async function extractMemories({
  * 处理 create 操作
  */
 function handleCreate(graph, op, seq, schema, refMap, stats) {
+  const normalizedFields =
+    op.type === "event" ? ensureEventTitle(op.fields || {}) : (op.fields || {});
   const typeDef = schema.find((s) => s.id === op.type);
   if (!typeDef) {
     console.warn(`[ST-BME] 未知节点类型: ${op.type}`);
@@ -233,7 +239,7 @@ function handleCreate(graph, op, seq, schema, refMap, stats) {
   // 创建新节点
   const node = createNode({
     type: op.type,
-    fields: op.fields || {},
+    fields: normalizedFields,
     seq,
     importance: op.importance ?? 5.0,
     clusters: op.clusters || [],
@@ -271,7 +277,10 @@ function handleUpdate(graph, op, currentSeq, stats) {
   }
 
   const previousFields = { ...(previousNode.fields || {}) };
-  const nextFields = { ...previousFields, ...(op.fields || {}) };
+  const nextFields =
+    previousNode.type === "event"
+      ? ensureEventTitle({ ...previousFields, ...(op.fields || {}) })
+      : { ...previousFields, ...(op.fields || {}) };
   const changeSummary = buildFieldChangeSummary(previousFields, nextFields);
 
   const updateSeq = Number.isFinite(op.seq) ? op.seq : currentSeq;
@@ -323,6 +332,7 @@ function handleUpdate(graph, op, currentSeq, stats) {
       const updateEventNode = createNode({
         type: "event",
         fields: {
+          title: `${previousNode.fields?.name || previousNode.fields?.title || previousNode.type} 状态更新`,
           summary: `${previousNode.type} 状态更新：${changeSummary}`,
           participants:
             previousNode.fields?.name ||
@@ -462,9 +472,7 @@ function buildGraphOverview(graph, schema) {
     lines.push(`### ${typeDef.label} (${nodesOfType.length} 个节点)`);
     for (const node of nodesOfType.slice(-10)) {
       // 只展示最近 10 个
-      const summary =
-        node.fields.summary || node.fields.name || node.fields.title || "(无)";
-      lines.push(`  - [${node.id}] ${summary}`);
+      lines.push(`  - [${node.id}] ${getNodeDisplayName(node)}`);
     }
   }
 
@@ -503,7 +511,7 @@ function buildDefaultExtractPrompt(schema) {
     "    {",
     '      "action": "create",',
     '      "type": "event",',
-    '      "fields": {"summary": "...", "participants": "...", "status": "ongoing"},',
+    '      "fields": {"title": "简短事件名", "summary": "...", "participants": "...", "status": "ongoing"},',
     '      "importance": 6,',
     '      "ref": "evt1",',
     '      "links": [',
@@ -528,6 +536,7 @@ function buildDefaultExtractPrompt(schema) {
     "- temporal_update 关系用于实体状态的时序变化",
     "- 不要虚构内容，只提取对话中有证据支持的信息",
     "- importance 范围 1-10，普通事件 5，关键转折 8+",
+    "- event.fields.title 需要是简短事件名，建议 6-18 字，只用于图谱和列表显示",
     "- summary 应该是摘要抽象，不要复制原文",
   ].join("\n");
 }

graph-renderer.js

@@ -2,6 +2,7 @@
 // 零依赖，纯 Canvas 2D 实现
 
 import { getNodeColors } from './themes.js';
+import { getGraphNodeLabel, getNodeDisplayName } from './node-labels.js';
 
 /**
  * @typedef {Object} GraphNode
@@ -90,6 +91,7 @@ export class GraphRenderer {
                 id: n.id,
                 type: n.type || 'event',
                 name: getNodeDisplayName(n),
+                label: getGraphNodeLabel(n),
                 importance: n.importance || 5,
                 x: viewportWidth / 2 + r * Math.cos(angle) + (Math.random() - 0.5) * 40,
                 y: viewportHeight / 2 + r * Math.sin(angle) + (Math.random() - 0.5) * 40,
@@ -252,7 +254,7 @@ export class GraphRenderer {
             ctx.fillStyle = `rgba(255,255,255,${isHovered || isSelected ? 0.95 : 0.65})`;
             ctx.font = `${FORCE_CONFIG.labelFontSize}px Inter, sans-serif`;
             ctx.textAlign = 'center';
-            ctx.fillText(node.name, node.x, node.y + r + 14);
+            ctx.fillText(node.label || node.name, node.x, node.y + r + 14);
         }
 
         ctx.restore();
@@ -462,14 +464,3 @@ export class GraphRenderer {
         this._resizeObserver?.disconnect();
     }
 }
-
-function getNodeDisplayName(node) {
-    return (
-        node?.fields?.name ||
-        node?.fields?.title ||
-        node?.fields?.summary ||
-        node?.fields?.insight ||
-        node?.id?.slice(0, 8) ||
-        '—'
-    );
-}

index.js

@@ -31,6 +31,7 @@ import {
 } from "./graph.js";
 import { estimateTokens, formatInjection } from "./injector.js";
 import { fetchMemoryLLMModels, testLLMConnection } from "./llm.js";
+import { getNodeDisplayName } from "./node-labels.js";
 import { retrieve } from "./retriever.js";
 import {
   appendBatchJournal,
@@ -190,17 +191,6 @@ function createUiStatus(text = "待命", meta = "", level = "idle") {
   };
 }
 
-function getNodeDisplayName(node) {
-  return (
-    node?.fields?.name ||
-    node?.fields?.title ||
-    node?.fields?.summary ||
-    node?.fields?.insight ||
-    node?.id ||
-    "—"
-  );
-}
-
 function toPanelNodeItem(node, meta = "") {
   return {
     id: node.id,

node-labels.js

@@ -0,0 +1,63 @@
+const DEFAULT_GRAPH_LABEL_LENGTH = 14;
+
+const GRAPH_LABEL_LENGTH_BY_TYPE = {
+  character: 12,
+  event: 14,
+  location: 12,
+  thread: 14,
+  rule: 14,
+  synopsis: 16,
+  reflection: 14,
+};
+
+function normalizeLabelText(value) {
+  return String(value ?? "")
+    .replace(/\s+/g, " ")
+    .trim();
+}
+
+export function truncateNodeLabel(text, maxLength = DEFAULT_GRAPH_LABEL_LENGTH) {
+  const normalized = normalizeLabelText(text);
+  if (!normalized) return "—";
+  if (!Number.isFinite(maxLength) || maxLength < 2) return normalized;
+  if (normalized.length <= maxLength) return normalized;
+  return `${normalized.slice(0, Math.max(1, maxLength - 1)).trimEnd()}…`;
+}
+
+export function deriveEventTitleFromSummary(summary, maxLength = 18) {
+  const normalized = normalizeLabelText(summary).replace(/^事件[：:]\s*/, "");
+  if (!normalized) return "";
+
+  const clause =
+    normalized.split(/[\r\n]+/, 1)[0]?.split(/[。！？!?]/, 1)[0]?.split(/[；;]/, 1)[0]?.split(/[，,]/, 1)[0] ||
+    normalized;
+
+  return truncateNodeLabel(clause || normalized, maxLength);
+}
+
+export function ensureEventTitle(fields = {}) {
+  const nextFields = { ...(fields || {}) };
+  if (!nextFields.title && nextFields.summary) {
+    nextFields.title = deriveEventTitleFromSummary(nextFields.summary);
+  }
+  return nextFields;
+}
+
+export function getNodeDisplayName(node) {
+  const label = normalizeLabelText(
+    node?.fields?.name ||
+      node?.fields?.title ||
+      node?.fields?.summary ||
+      node?.fields?.insight ||
+      node?.name ||
+      node?.id?.slice(0, 8) ||
+      "—",
+  );
+  return label || "—";
+}
+
+export function getGraphNodeLabel(node) {
+  const maxLength =
+    GRAPH_LABEL_LENGTH_BY_TYPE[node?.type] || DEFAULT_GRAPH_LABEL_LENGTH;
+  return truncateNodeLabel(getNodeDisplayName(node), maxLength);
+}

panel.js

@@ -2,6 +2,7 @@
 
 import { renderTemplateAsync } from "../../../templates.js";
 import { GraphRenderer } from "./graph-renderer.js";
+import { getNodeDisplayName } from "./node-labels.js";
 import { getNodeColors } from "./themes.js";
 import {
     getSuggestedBackendModel,
@@ -21,7 +22,7 @@ const DEFAULT_PROMPTS = {
         "    {",
         '      "action": "create",',
         '      "type": "event",',
-        '      "fields": {"summary": "...", "participants": "...", "status": "ongoing"},',
+        '      "fields": {"title": "简短事件名", "summary": "...", "participants": "...", "status": "ongoing"},',
         '      "importance": 6,',
         '      "ref": "evt1",',
         '      "links": [',
@@ -41,6 +42,7 @@ const DEFAULT_PROMPTS = {
         "- 角色/地点节点：如果图中已有同名节点，用 update 而非 create",
         "- 不要虚构内容，只提取对话中有证据支持的信息",
         "- importance 范围 1-10，普通事件 5，关键转折 8+",
+        "- event.fields.title 需要是简短事件名，建议 6-18 字，只用于图谱和列表显示",
         "- summary 应该是摘要抽象，不要复制原文",
     ].join("\n"),
 
@@ -1441,17 +1443,6 @@ function _getNodeSnippet(node) {
     return "无补充字段";
 }
 
-function getNodeDisplayName(node) {
-    return (
-        node?.fields?.name ||
-        node?.fields?.title ||
-        node?.fields?.summary ||
-        node?.fields?.insight ||
-        node?.id?.slice(0, 8) ||
-        "—"
-    );
-}
-
 function _isMobile() {
     return window.innerWidth <= 768;
 }

schema.js

@@ -27,6 +27,7 @@ export const DEFAULT_NODE_SCHEMA = [
     label: "事件",
     tableName: "event_table",
     columns: [
+      { name: "title", hint: "简短事件名（建议 6-18 字，用于图谱显示）", required: false },
       { name: "summary", hint: "事件摘要，包含因果关系和结果", required: true },
       { name: "participants", hint: "参与角色名，逗号分隔", required: false },
       {