refactor: simplify ticket form and SLA configuration handling

- Removed SLA configuration selection from the TicketForm component to streamline the ticket creation process.
- Updated the abrir-chamado route to eliminate unnecessary SLA loading logic and directly pass loading state to the TicketForm.
- Enhanced the central-chamados route to support SLA configurations by priority, allowing for better management of SLA settings.
- Introduced new mutations for SLA configuration management, including creation, updating, and deletion of SLA settings.
- Improved email templates for ticket notifications, ensuring better communication with users regarding ticket status and updates.

packages/backend/convex/schema.ts

@@ -913,7 +913,12 @@ export default defineSchema({
   slaConfigs: defineTable({
     nome: v.string(),
     descricao: v.optional(v.string()),
-    setores: v.optional(v.array(v.string())),
+    prioridade: v.union(
+      v.literal("baixa"),
+      v.literal("media"),
+      v.literal("alta"),
+      v.literal("critica")
+    ),
     tempoRespostaHoras: v.number(),
     tempoConclusaoHoras: v.number(),
     tempoEncerramentoHoras: v.optional(v.number()),
@@ -925,6 +930,7 @@ export default defineSchema({
     atualizadoEm: v.number(),
   })
     .index("by_ativo", ["ativo"])
+    .index("by_prioridade", ["prioridade", "ativo"])
     .index("by_nome", ["nome"]),
 
   ticketAssignments: defineTable({