fix: 补注册缺失API模块+前端路由+ConnectionLines恢复

- 注册4个后端模块: customer_dashboard/deviation_push/budget_generate/knowledge_articles
- 修复改善行动路由指向ActionPlanLibrary.vue(原指向AlertList.vue)
- 新增3个路由: /reports(管理报表) /alignment(战略执行看板) /dupont-analysis
- 恢复ConnectionLines.vue完整版(288行, 原被截断为123行)
- 修复maps.py维度键 finance(原financial不匹配前端)
- 补回models/__init__.py knowledge模型导入

backend/app/api/maps.py

@@ -14,7 +14,7 @@ router = APIRouter(prefix="/api/cma/maps", tags=["战略地图"],
 # ── 四维度模板 ──────────────────────────────
 STRATEGIC_MAP_TEMPLATE = [
     {
-        "key": "financial",
+        "key": "finance",
         "name": "财务层",
         "icon": "💰",
         "color": "#F56C6C",