Add requester filter and improve error messages

- Add requester filter to device tickets history page
- Create listMachineRequesters query to list unique requesters
- Add friendly API error formatting in desktop agent
- Translate validation errors to user-friendly Portuguese messages

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

src/components/admin/devices/device-tickets-history.client.tsx

@@ -45,6 +45,7 @@ type DeviceTicketsHistoryArgs = {
   machineId: Id<"machines">
   status?: "open" | "resolved"
   priority?: string
+  requesterEmail?: string
   search?: string
   from?: number
   to?: number
@@ -146,12 +147,15 @@ function getPriorityMeta(priority: TicketPriority | string | null | undefined) {
 export function DeviceTicketsHistoryClient({ tenantId: _tenantId, deviceId }: { tenantId: string; deviceId: string }) {
   const [statusFilter, setStatusFilter] = useState<"all" | "open" | "resolved">("all")
   const [priorityFilter, setPriorityFilter] = useState<string>("ALL")
+  const [requesterFilter, setRequesterFilter] = useState<string>("ALL")
   const [periodPreset, setPeriodPreset] = useState<PeriodPreset>("90d")
   const [customFrom, setCustomFrom] = useState<string>("")
   const [customTo, setCustomTo] = useState<string>("")
   const [searchValue, setSearchValue] = useState<string>("")
   const [debouncedSearch, setDebouncedSearch] = useState<string>("")
 
+  const requesters = useQuery(api.devices.listMachineRequesters, { machineId: deviceId as Id<"machines"> })
+
   useEffect(() => {
     const timer = setTimeout(() => {
       setDebouncedSearch(searchValue.trim())
@@ -178,6 +182,9 @@ export function DeviceTicketsHistoryClient({ tenantId: _tenantId, deviceId }: {
     if (priorityFilter !== "ALL") {
       args.priority = priorityFilter
     }
+    if (requesterFilter !== "ALL") {
+      args.requesterEmail = requesterFilter
+    }
     if (debouncedSearch) {
       args.search = debouncedSearch
     }
@@ -188,7 +195,7 @@ export function DeviceTicketsHistoryClient({ tenantId: _tenantId, deviceId }: {
       args.to = range.to
     }
     return args
-  }, [debouncedSearch, deviceId, priorityFilter, range.from, range.to, statusFilter])
+  }, [debouncedSearch, deviceId, priorityFilter, requesterFilter, range.from, range.to, statusFilter])
 
   const { results: tickets, status: paginationStatus, loadMore } = usePaginatedQuery(
     api.devices.listTicketsHistory,
@@ -208,6 +215,7 @@ export function DeviceTicketsHistoryClient({ tenantId: _tenantId, deviceId }: {
   const resetFilters = () => {
     setStatusFilter("all")
     setPriorityFilter("ALL")
+    setRequesterFilter("ALL")
     setPeriodPreset("90d")
     setCustomFrom("")
     setCustomTo("")
@@ -271,6 +279,19 @@ export function DeviceTicketsHistoryClient({ tenantId: _tenantId, deviceId }: {
                 <SelectItem value="LOW">Baixa</SelectItem>
               </SelectContent>
             </Select>
+            <Select value={requesterFilter} onValueChange={(value) => setRequesterFilter(value)}>
+              <SelectTrigger className="sm:w-[200px]">
+                <SelectValue placeholder="Solicitante" />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="ALL">Todos os solicitantes</SelectItem>
+                {requesters?.map((requester: { email: string; name: string | null }) => (
+                  <SelectItem key={requester.email} value={requester.email}>
+                    {requester.name ?? requester.email}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
           </div>
           <div className="flex flex-col gap-3 sm:flex-row sm:items-center">
             <Select value={periodPreset} onValueChange={(value) => setPeriodPreset(value as PeriodPreset)}>