Fix location dropdowns silently truncating at the 100-row backend cap

The backend clamps perpage to MAX_PAGE_SIZE (100), so location selectors that requested a large page received only the first page and still got a 200. Late-alphabet locations (past ~C5W) simply went missing from every module's dropdown, and no error surfaced.

Add locationsApi.listAll, which pages through the full set via fetchAllPages, matching the established machines/printers pattern, and switch every location selector consumer to it.

frontend/src/api/index.js

@@ -273,6 +273,12 @@ export const locationsApi = {
   list(params = {}) {
     return api.get('/locations', { params })
   },
+  // Every location, paged past the backend's 100-row cap. Location selector
+  // dropdowns must use this: list() with a large perpage is clamped to 100 and
+  // still returns a success response, so the tail simply goes missing.
+  listAll(params = {}) {
+    return fetchAllPages('/locations', params)
+  },
   get(id) {
     return api.get(`/locations/${id}`)
   },

frontend/src/views/reports/ReportsIndex.vue

@@ -266,8 +266,10 @@ async function loadFilterOptions(fields) {
       filterOptions.value.assettypes = response.data.data || []
     }
     if (fields.includes('location') && !filterOptions.value.locations.length) {
-      const response = await locationsApi.list({ perpage: 100 })
-      filterOptions.value.locations = response.data.data || []
+      // listAll: 100 is the server-side cap, not a generous limit, and the
+      // location list is past it - a report filtered by a late-alphabet
+      // location could not be built.
+      filterOptions.value.locations = await locationsApi.listAll()
     }
     if (fields.includes('application') && !filterOptions.value.applications.length) {
       // listAll: 100 is the server-side cap, not a generous limit, and the