feat(rich-text, types): Tiptap editor, SSR-safe, comments + description; stricter typing (no any) across app

- Add Tiptap editor + toolbar and rich content rendering with sanitize-html
- Fix SSR hydration (immediatelyRender: false) and setContent options
- Comments: rich text + visibility selector, typed attachments (Id<_storage>)
- New Ticket: description rich text; attachments typed; queues typed
- Convex: server-side filters using indexes; priority order rename; stronger Doc/Id typing; remove helper with any
- Schemas/Mappers: zod v4 record typing; event payload record typing; customFields typed
- UI: replace any in header/play/list/timeline/fields; improve select typings
- Build passes; only non-blocking lint warnings remain

web/convex/schema.ts

@@ -41,6 +41,7 @@ export default defineSchema({
     reference: v.number(),
     subject: v.string(),
     summary: v.optional(v.string()),
+    description: v.optional(v.string()),
     status: v.string(),
     priority: v.string(),
     channel: v.string(),
@@ -59,7 +60,8 @@ export default defineSchema({
     .index("by_tenant_status", ["tenantId", "status"]) 
     .index("by_tenant_queue", ["tenantId", "queueId"]) 
     .index("by_tenant_assignee", ["tenantId", "assigneeId"]) 
-    .index("by_tenant_reference", ["tenantId", "reference"]),
+    .index("by_tenant_reference", ["tenantId", "reference"]) 
+    .index("by_tenant", ["tenantId"]),
 
   ticketComments: defineTable({
     ticketId: v.id("tickets"),
@@ -87,4 +89,3 @@ export default defineSchema({
     createdAt: v.number(),
   }).index("by_ticket", ["ticketId"]),
 });
-