feat: 新增热点穿透网状关系图 + 移动端优化

- 新增 /hot-map 热点穿透页：d3-force 力导向网状图展示题材-股票 M:N 关系
  - 股票节点面积/颜色按覆盖题材数分级，穿透核心股高亮
  - 图/核心股列表双视图切换，列表覆盖题材>2 公司降序展示
  - 悬停信息卡、缩放平移、点击跳转股票/题材详情
- 数据采样改为涨幅+热度双榜合并（各 Top50 去重=82 题材），修复覆盖数低估
  （有研新材覆盖数 2→10，核心股 66→1124 家）
- 移动端适配：触屏 tap 选中底部浮层、标签缩放阈值防重叠、自动 fit、紧凑图例
- 主页/题材列表增加热点穿透入口

Co-Authored-By: Claude <noreply@anthropic.com>

src/routeTree.gen.ts

@@ -11,6 +11,7 @@
 import { Route as rootRouteImport } from './routes/__root'
 import { Route as ThemesRouteImport } from './routes/themes'
 import { Route as SectorsRouteImport } from './routes/sectors'
+import { Route as HotMapRouteImport } from './routes/hot-map'
 import { Route as IndexRouteImport } from './routes/index'
 import { Route as ThemeCodeRouteImport } from './routes/theme.$code'
 import { Route as StockCodeRouteImport } from './routes/stock.$code'
@@ -26,6 +27,11 @@ const SectorsRoute = SectorsRouteImport.update({
   path: '/sectors',
   getParentRoute: () => rootRouteImport,
 } as any)
+const HotMapRoute = HotMapRouteImport.update({
+  id: '/hot-map',
+  path: '/hot-map',
+  getParentRoute: () => rootRouteImport,
+} as any)
 const IndexRoute = IndexRouteImport.update({
   id: '/',
   path: '/',
@@ -49,6 +55,7 @@ const ShareCodeRoute = ShareCodeRouteImport.update({
 
 export interface FileRoutesByFullPath {
   '/': typeof IndexRoute
+  '/hot-map': typeof HotMapRoute
   '/sectors': typeof SectorsRoute
   '/themes': typeof ThemesRoute
   '/share/$code': typeof ShareCodeRoute
@@ -57,6 +64,7 @@ export interface FileRoutesByFullPath {
 }
 export interface FileRoutesByTo {
   '/': typeof IndexRoute
+  '/hot-map': typeof HotMapRoute
   '/sectors': typeof SectorsRoute
   '/themes': typeof ThemesRoute
   '/share/$code': typeof ShareCodeRoute
@@ -66,6 +74,7 @@ export interface FileRoutesByTo {
 export interface FileRoutesById {
   __root__: typeof rootRouteImport
   '/': typeof IndexRoute
+  '/hot-map': typeof HotMapRoute
   '/sectors': typeof SectorsRoute
   '/themes': typeof ThemesRoute
   '/share/$code': typeof ShareCodeRoute
@@ -76,6 +85,7 @@ export interface FileRouteTypes {
   fileRoutesByFullPath: FileRoutesByFullPath
   fullPaths:
     | '/'
+    | '/hot-map'
     | '/sectors'
     | '/themes'
     | '/share/$code'
@@ -84,6 +94,7 @@ export interface FileRouteTypes {
   fileRoutesByTo: FileRoutesByTo
   to:
     | '/'
+    | '/hot-map'
     | '/sectors'
     | '/themes'
     | '/share/$code'
@@ -92,6 +103,7 @@ export interface FileRouteTypes {
   id:
     | '__root__'
     | '/'
+    | '/hot-map'
     | '/sectors'
     | '/themes'
     | '/share/$code'
@@ -101,6 +113,7 @@ export interface FileRouteTypes {
 }
 export interface RootRouteChildren {
   IndexRoute: typeof IndexRoute
+  HotMapRoute: typeof HotMapRoute
   SectorsRoute: typeof SectorsRoute
   ThemesRoute: typeof ThemesRoute
   ShareCodeRoute: typeof ShareCodeRoute
@@ -124,6 +137,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof SectorsRouteImport
       parentRoute: typeof rootRouteImport
     }
+    '/hot-map': {
+      id: '/hot-map'
+      path: '/hot-map'
+      fullPath: '/hot-map'
+      preLoaderRoute: typeof HotMapRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/': {
       id: '/'
       path: '/'
@@ -157,6 +177,7 @@ declare module '@tanstack/react-router' {
 
 const rootRouteChildren: RootRouteChildren = {
   IndexRoute: IndexRoute,
+  HotMapRoute: HotMapRoute,
   SectorsRoute: SectorsRoute,
   ThemesRoute: ThemesRoute,
   ShareCodeRoute: ShareCodeRoute,