fix: restore post-v1.1.14 features while preserving asset updates

Undo the full-tree rollback in 6ea1b3d and restore the pre-rollback v1.2.0 code. Preserve the new asset flow rules, abnormal inventory separation, range drilldowns and date picker; adapt the regression test to the restored routes layout.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "ln-bi",
-  "version": "1.1.14",
+  "version": "1.2.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "ln-bi",
-      "version": "1.1.14",
+      "version": "1.2.0",
       "dependencies": {
         "@amap/amap-jsapi-loader": "^1.0.1",
         "@hono/node-server": "^1.13.0",