feat(ui): priority dropdown badge, delete ticket modal, Empty state component; Convex mutations (updatePriority/remove); layout polish

- PrioritySelect with translucent badge + Select options
- DeleteTicketDialog with confirmation and icons
- Empty UI primitives and basic usage (kept simple to ensure build)
- Convex: tickets.updatePriority & tickets.remove
- Header: integrate priority select, delete action, avatar-rich assignee select

web/src/components/tickets/delete-ticket-dialog.tsx

@@ -0,0 +1,61 @@
+"use client"
+
+import { useRouter } from "next/navigation"
+import { useState } from "react"
+import { useMutation } from "convex/react"
+// @ts-ignore
+import { api } from "@/convex/_generated/api"
+import type { Id } from "@/convex/_generated/dataModel"
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription, DialogTrigger } from "@/components/ui/dialog"
+import { Button } from "@/components/ui/button"
+import { AlertTriangle, Trash2 } from "lucide-react"
+import { toast } from "sonner"
+
+export function DeleteTicketDialog({ ticketId }: { ticketId: Id<"tickets"> }) {
+  const router = useRouter()
+  const remove = useMutation(api.tickets.remove)
+  const [open, setOpen] = useState(false)
+  const [loading, setLoading] = useState(false)
+
+  async function confirm() {
+    setLoading(true)
+    toast.loading("Excluindo ticket...", { id: "del" })
+    try {
+      await remove({ ticketId, actorId: undefined as unknown as Id<"users"> })
+      toast.success("Ticket excluído.", { id: "del" })
+      setOpen(false)
+      router.push("/tickets")
+    } catch {
+      toast.error("Não foi possível excluir o ticket.", { id: "del" })
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  return (
+    <Dialog open={open} onOpenChange={setOpen}>
+      <DialogTrigger asChild>
+        <Button variant="ghost" size="sm" className="gap-2 text-destructive hover:bg-destructive/10">
+          <Trash2 className="size-4" /> Excluir
+        </Button>
+      </DialogTrigger>
+      <DialogContent className="max-w-md">
+        <DialogHeader>
+          <DialogTitle className="flex items-center gap-2 text-destructive">
+            <AlertTriangle className="size-5" /> Excluir ticket
+          </DialogTitle>
+          <DialogDescription>
+            Esta ação é permanente e removerá o ticket, comentários e eventos associados. Deseja continuar?
+          </DialogDescription>
+        </DialogHeader>
+        <div className="flex justify-end gap-2 pt-2">
+          <Button variant="outline" onClick={() => setOpen(false)}>Cancelar</Button>
+          <Button variant="destructive" onClick={confirm} disabled={loading} className="gap-2">
+            {loading ? "Excluindo..." : (<><Trash2 className="size-4" /> Excluir</>)}
+          </Button>
+        </div>
+      </DialogContent>
+    </Dialog>
+  )
+}
+

web/src/components/tickets/priority-select.tsx

@@ -0,0 +1,67 @@
+"use client"
+
+import { useState } from "react"
+import { useMutation } from "convex/react"
+// @ts-ignore
+import { api } from "@/convex/_generated/api"
+import type { Id } from "@/convex/_generated/dataModel"
+import type { TicketStatus } from "@/lib/schemas/ticket"
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select"
+import { Badge } from "@/components/ui/badge"
+import { toast } from "sonner"
+
+const labels: Record<string, string> = {
+  LOW: "Baixa",
+  MEDIUM: "Média",
+  HIGH: "Alta",
+  URGENT: "Urgente",
+}
+
+function badgeClass(p: string) {
+  switch (p) {
+    case "URGENT":
+      return "bg-red-100 text-red-700"
+    case "HIGH":
+      return "bg-amber-100 text-amber-700"
+    case "MEDIUM":
+      return "bg-blue-100 text-blue-700"
+    default:
+      return "bg-slate-100 text-slate-700"
+  }
+}
+
+export function PrioritySelect({ ticketId, value }: { ticketId: Id<"tickets">; value: "LOW" | "MEDIUM" | "HIGH" | "URGENT" }) {
+  const updatePriority = useMutation(api.tickets.updatePriority)
+  const [priority, setPriority] = useState(value)
+  return (
+    <Select
+      value={priority}
+      onValueChange={async (val) => {
+        const prev = priority
+        setPriority(val as typeof priority)
+        toast.loading("Atualizando prioridade...", { id: "prio" })
+        try {
+          await updatePriority({ ticketId, priority: val as any, actorId: undefined as unknown as Id<"users"> })
+          toast.success("Prioridade atualizada!", { id: "prio" })
+        } catch {
+          setPriority(prev)
+          toast.error("Não foi possível atualizar a prioridade.", { id: "prio" })
+        }
+      }}
+    >
+      <SelectTrigger className="h-7 w-[140px] border-transparent bg-muted/50 px-2">
+        <SelectValue>
+          <Badge className={`rounded-full px-2 py-0.5 ${badgeClass(priority)}`}>{labels[priority]}</Badge>
+        </SelectValue>
+      </SelectTrigger>
+      <SelectContent>
+        {(["LOW","MEDIUM","HIGH","URGENT"] as const).map((p) => (
+          <SelectItem key={p} value={p}>
+            <span className="inline-flex items-center gap-2"><span className={`h-2 w-2 rounded-full ${p==="URGENT"?"bg-red-500":p==="HIGH"?"bg-amber-500":p==="MEDIUM"?"bg-blue-500":"bg-slate-400"}`}></span>{labels[p]}</span>
+          </SelectItem>
+        ))}
+      </SelectContent>
+    </Select>
+  )
+}
+

web/src/components/tickets/ticket-summary-header.tsx

@@ -16,6 +16,8 @@ import type { TicketWithDetails, TicketQueueSummary, TicketStatus } from "@/lib/
 import { Badge } from "@/components/ui/badge"
 import { Separator } from "@/components/ui/separator"
 import { TicketPriorityPill } from "@/components/tickets/priority-pill"
+import { PrioritySelect } from "@/components/tickets/priority-select"
+import { DeleteTicketDialog } from "@/components/tickets/delete-ticket-dialog"
 import { TicketStatusBadge } from "@/components/tickets/status-badge"
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select"
 
@@ -47,7 +49,7 @@ export function TicketSummaryHeader({ ticket }: TicketHeaderProps) {
             <Badge variant="outline" className="rounded-full px-3 py-1 text-xs uppercase tracking-wide">
               #{ticket.reference}
             </Badge>
-            <TicketPriorityPill priority={ticket.priority} />
+            <PrioritySelect ticketId={ticket.id as any} value={ticket.priority as any} />
             <TicketStatusBadge status={status} />
             <Select
               value={status}
@@ -77,6 +79,9 @@ export function TicketSummaryHeader({ ticket }: TicketHeaderProps) {
           </div>
           <h1 className="text-2xl font-semibold text-foreground break-words">{ticket.subject}</h1>
           <p className="max-w-2xl text-sm text-muted-foreground">{ticket.summary}</p>
+          <div className="ms-auto flex items-center gap-2">
+            <DeleteTicketDialog ticketId={ticket.id as any} />
+          </div>
         </div>
       </div>
       <Separator />
@@ -103,10 +108,18 @@ export function TicketSummaryHeader({ ticket }: TicketHeaderProps) {
               }
             }}
           >
-            <SelectTrigger className="h-8 w-[180px]"><SelectValue placeholder="Selecionar" /></SelectTrigger>
+            <SelectTrigger className="h-8 w-[220px]"><SelectValue placeholder="Selecionar" /></SelectTrigger>
             <SelectContent>
               {agents.map((a) => (
-                <SelectItem key={a._id} value={a._id}>{a.name}</SelectItem>
+                <SelectItem key={a._id} value={a._id}>
+                  <span className="inline-flex items-center gap-2">
+                    <span className="inline-flex size-6 items-center justify-center overflow-hidden rounded-full bg-muted">
+                      {/* eslint-disable-next-line @next/next/no-img-element */}
+                      {a.avatarUrl ? <img src={a.avatarUrl} alt={a.name} className="h-6 w-6 rounded-full object-cover" /> : <span className="text-[10px] font-medium">{a.name.split(' ').slice(0,2).map(p=>p[0]).join('').toUpperCase()}</span>}
+                    </span>
+                    {a.name}
+                  </span>
+                </SelectItem>
               ))}
             </SelectContent>
           </Select>

web/src/components/ui/empty.tsx

@@ -0,0 +1,36 @@
+"use client"
+
+import * as React from "react"
+import { cn } from "@/lib/utils"
+
+export function Empty({ className, ...props }: React.ComponentProps<"div">) {
+  return <div className={cn("flex flex-col items-center gap-4 rounded-xl border bg-card p-8 text-center", className)} {...props} />
+}
+
+export function EmptyHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return <div className={cn("flex flex-col items-center gap-2", className)} {...props} />
+}
+
+export function EmptyMedia({ variant = "default", className, children }: { variant?: "default" | "icon"; className?: string; children?: React.ReactNode }) {
+  if (variant === "icon") {
+    return (
+      <div className={cn("flex size-12 items-center justify-center rounded-full bg-muted text-muted-foreground", className)}>
+        {children}
+      </div>
+    )
+  }
+  return <div className={className}>{children}</div>
+}
+
+export function EmptyTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return <div className={cn("text-lg font-semibold", className)} {...props} />
+}
+
+export function EmptyDescription({ className, ...props }: React.ComponentProps<"p">) {
+  return <p className={cn("max-w-sm text-sm text-muted-foreground", className)} {...props} />
+}
+
+export function EmptyContent({ className, ...props }: React.ComponentProps<"div">) {
+  return <div className={cn("mt-2 flex items-center gap-2", className)} {...props} />
+}
+