feat: enhance SLA management and authentication handling

- Updated the useConvexWithAuth hook to improve token management and logging for better debugging.
- Integrated automatic authentication handling in the central-chamados route, ensuring seamless user experience.
- Added a new mutation for migrating old SLA configurations to include a priority field, enhancing data consistency.
- Improved the display of SLA configurations in the UI, including detailed views and migration feedback for better user interaction.
- Refactored ticket loading logic to enrich ticket data with responsible user names, improving clarity in ticket management.

packages/backend/convex/schema.ts

@@ -913,11 +913,13 @@ export default defineSchema({
   slaConfigs: defineTable({
     nome: v.string(),
     descricao: v.optional(v.string()),
-    prioridade: v.union(
-      v.literal("baixa"),
-      v.literal("media"),
-      v.literal("alta"),
-      v.literal("critica")
+    prioridade: v.optional(
+      v.union(
+        v.literal("baixa"),
+        v.literal("media"),
+        v.literal("alta"),
+        v.literal("critica")
+      )
     ),
     tempoRespostaHoras: v.number(),
     tempoConclusaoHoras: v.number(),