feat: checklists em tickets + automações

- Adiciona checklist no ticket (itens obrigatórios/opcionais) e bloqueia encerramento com pendências\n- Cria templates de checklist (globais/por empresa) + tela em /settings/checklists\n- Nova ação de automação: aplicar template de checklist\n- Corrige crash do Select (value vazio), warnings de Dialog e dimensionamento de charts\n- Ajusta SMTP (STARTTLS) e melhora teste de integração

convex/ticketChecklist.ts

@@ -0,0 +1,71 @@
+import type { Id } from "./_generated/dataModel"
+
+export type TicketChecklistItem = {
+  id: string
+  text: string
+  done: boolean
+  required?: boolean
+  templateId?: Id<"ticketChecklistTemplates">
+  templateItemId?: string
+  createdAt?: number
+  createdBy?: Id<"users">
+  doneAt?: number
+  doneBy?: Id<"users">
+}
+
+export type TicketChecklistTemplateLike = {
+  _id: Id<"ticketChecklistTemplates">
+  items: Array<{ id: string; text: string; required?: boolean }>
+}
+
+export function normalizeChecklistText(input: string) {
+  return input.replace(/\r\n/g, "\n").trim()
+}
+
+export function checklistBlocksResolution(checklist: TicketChecklistItem[] | null | undefined) {
+  return (checklist ?? []).some((item) => (item.required ?? true) && item.done !== true)
+}
+
+export function applyChecklistTemplateToItems(
+  existing: TicketChecklistItem[],
+  template: TicketChecklistTemplateLike,
+  options: {
+    now: number
+    actorId?: Id<"users">
+    generateId?: () => string
+  }
+) {
+  const generateId = options.generateId ?? (() => crypto.randomUUID())
+  const now = options.now
+
+  const next = Array.isArray(existing) ? [...existing] : []
+  const existingKeys = new Set<string>()
+  for (const item of next) {
+    if (!item.templateId || !item.templateItemId) continue
+    existingKeys.add(`${String(item.templateId)}:${item.templateItemId}`)
+  }
+
+  let added = 0
+  for (const tplItem of template.items ?? []) {
+    const templateItemId = String(tplItem.id ?? "").trim()
+    const text = normalizeChecklistText(String(tplItem.text ?? ""))
+    if (!templateItemId || !text) continue
+    const key = `${String(template._id)}:${templateItemId}`
+    if (existingKeys.has(key)) continue
+    existingKeys.add(key)
+    next.push({
+      id: generateId(),
+      text,
+      done: false,
+      required: typeof tplItem.required === "boolean" ? tplItem.required : true,
+      templateId: template._id,
+      templateItemId,
+      createdAt: now,
+      createdBy: options.actorId,
+    })
+    added += 1
+  }
+
+  return { checklist: next, added }
+}
+