feat: 重构图谱抽取 — 支持建筑规范文档的 8 种实体类型

- 实体类型改为：构件/设备/设施/指标/场所/材料/措施/条款
- 中文 prompt + 建筑规范领域 Few-shot 示例
- 前端图谱颜色、筛选项同步更新
- QA agent 系统提示词适配建筑规范领域

frontend/src/app/components/pages/KGExplorer.tsx

@@ -5,7 +5,7 @@ import { ZoomIn, ZoomOut, Maximize2, Search, Download, Image, X, MessageSquare,
 import { useAppState, type KGNode } from '../../store';
 import { TYPE_COLORS } from '../../mock-data';
 
-const ENTITY_TYPES = ['TECHNOLOGY', 'CONCEPT', 'PERSON', 'ORGANIZATION', 'LOCATION'] as const;
+const ENTITY_TYPES = ['构件', '设备', '设施', '指标', '场所', '材料', '措施', '条款', 'TECHNOLOGY', 'CONCEPT', 'PERSON', 'ORGANIZATION', 'LOCATION'] as const;
 const CONFIDENCE_LEVELS = ['match_exact', 'match_greater', 'match_lesser', 'match_fuzzy'] as const;
 
 export function KGExplorer() {

frontend/src/app/components/pages/SearchPage.tsx

@@ -6,7 +6,7 @@ import { useAppState, mapApiNode, mapApiEdge, type KGNode } from '../../store';
 import { api, ApiError } from '../../api';
 import { TYPE_COLORS } from '../../mock-data';
 
-const ENTITY_TYPES_OPTIONS = ['全部类型', 'TECHNOLOGY', 'CONCEPT', 'PERSON', 'ORGANIZATION', 'LOCATION'];
+const ENTITY_TYPES_OPTIONS = ['全部类型', '构件', '设备', '设施', '指标', '场所', '材料', '措施', '条款', 'TECHNOLOGY', 'CONCEPT', 'PERSON', 'ORGANIZATION', 'LOCATION'];
 
 export function SearchPage() {
   const { nodes, edges, getNeighbors } = useAppState();

frontend/src/app/mock-data.ts

@@ -3,7 +3,7 @@
 export interface KGNode {
   id: string;
   name: string;
-  type: 'TECHNOLOGY' | 'CONCEPT' | 'PERSON' | 'ORGANIZATION' | 'LOCATION';
+  type: '构件' | '设备' | '设施' | '指标' | '场所' | '材料' | '措施' | '条款' | 'TECHNOLOGY' | 'CONCEPT' | 'PERSON' | 'ORGANIZATION' | 'LOCATION';
   page: number;
   confidence: 'match_exact' | 'match_greater' | 'match_lesser' | 'match_fuzzy';
   degree: number;
@@ -66,6 +66,14 @@ export interface HistoryItem {
 
 // Entity type colors
 export const TYPE_COLORS: Record<string, string> = {
+  '构件': '#58a6ff',
+  '设备': '#ff7b72',
+  '设施': '#d29922',
+  '指标': '#3fb950',
+  '场所': '#bc8cff',
+  '材料': '#ffa657',
+  '措施': '#f0f6fc',
+  '条款': '#8b949e',
   TECHNOLOGY: '#58a6ff',
   CONCEPT: '#bc8cff',
   PERSON: '#3fb950',

frontend/src/app/store.tsx

@@ -6,7 +6,7 @@ import { api, type ApiDoc, type ApiKGNode, type ApiKGEdge, ApiError } from './ap
 export interface KGNode {
   id: string;
   name: string;
-  type: 'TECHNOLOGY' | 'CONCEPT' | 'PERSON' | 'ORGANIZATION' | 'LOCATION';
+  type: '构件' | '设备' | '设施' | '指标' | '场所' | '材料' | '措施' | '条款' | 'TECHNOLOGY' | 'CONCEPT' | 'PERSON' | 'ORGANIZATION' | 'LOCATION';
   page: number;
   confidence: 'match_exact' | 'match_greater' | 'match_lesser' | 'match_fuzzy';
   degree: number;
@@ -169,9 +169,9 @@ const DEFAULT_STATS: StatsData = { kg_nodes: 0, kg_edges: 0, documents: 0, queri
 
 const SUGGESTED_PROMPTS = [
   '给我一个知识图谱的概览',
-  '列出所有 TECHNOLOGY 实体',
-  'GraphRAG 与知识图谱有什么关系？',
-  '什么是检索增强生成？',
+  '列出所有 构件 实体',
+  '列出所有 设备 实体',
+  '文档中有哪些防火措施？',
 ];
 
 // ─── Provider ─────────────────────────────────────────────────────────────────