Add HTTP client wrapper and upgrade Axios to v1 (#594)

* refactor: add HTTP client wrapper and upgrade axios to v1

Introduce a thin HTTP wrapper (resources/scripts/http) that centralizes
axios configuration, interceptors, and auth header injection. All 43
files now import from the wrapper instead of axios directly, making
future library swaps a single-file change. Upgrade axios from 0.30.0
to 1.14.0.

* fix: restore window.Ls assignment removed during axios refactor

company.js uses window.Ls.set() to persist selected company,
which broke after the axios plugin (that set window.Ls) was deleted.

package.json

@@ -42,7 +42,7 @@
     "@vuelidate/core": "^2.0.3",
     "@vuelidate/validators": "^2.0.4",
     "@vueuse/core": "^12.4.0",
-    "axios": "0.30.0",
+    "axios": "^1",
     "chart.js": "^2.9.4",
     "guid": "^0.0.12",
     "laravel-vite-plugin": "^1.1.1",
@@ -61,4 +61,4 @@
     "vue-router": "^4.5.0",
     "vuedraggable": "^4.1.0"
   }
-}
+}