feat: «Recordármelo», a reminder of a ticket only for me

On a ticket, «Recordármelo» offers in an hour, this evening, tomorrow or
next Monday at 9, in a week, or any date and time, with an optional note.
The ticket shows the waiting one («Te lo recordaré el mié 21 a las 9:00»)
to change or drop. Every minute a scheduler tells the ones whose time
came as a REMINDER notification (bell, push, e-mail), once, and forgets
those whose ticket went to the trash or out of reach. One per person and
ticket, private, no history (Mongo `issue_reminders`).

API: setReminder / clearReminder, Issue.myReminder, myReminders;
PUT/DELETE /api/issues/{issue}/reminder, GET /api/me/reminders. MCP:
remind_me.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/mcp/src/app/tools/issues.resolver.ts

@@ -783,6 +783,41 @@ export class IssuesResolver {
     );
   }
 
+  @Tool({
+    name: 'remind_me',
+    description:
+      'Remind me of a ticket at a date and time (a notification), with an optional note; one per ticket, it replaces the waiting one. clear: true drops it. Times are ISO with offset, e.g. 2026-10-23T09:00:00+02:00.',
+    paramsSchema: z.object({
+      issue: issueRef,
+      at: z.string().optional(),
+      note: z.string().max(280).optional(),
+      clear: z.boolean().default(false),
+    }),
+    annotations: { ...WRITE, idempotentHint: true },
+  })
+  remindMe(
+    params: { issue: string; at?: string; note?: string; clear: boolean },
+    ctx: McpContext,
+  ) {
+    const client = this.api.as(ctx);
+    const path = { issue: params.issue };
+    return toolResult(async () => {
+      if (params.clear) {
+        await this.api.data(
+          client.DELETE('/api/issues/{issue}/reminder', { params: { path } }),
+        );
+        return { issue: params.issue, reminder: null };
+      }
+      if (!params.at) throw new Error('at is required unless clear is true');
+      return this.api.data(
+        client.PUT('/api/issues/{issue}/reminder', {
+          params: { path },
+          body: { at: params.at, note: params.note },
+        }),
+      );
+    });
+  }
+
   @Tool({
     name: 'resolve_thread',
     description: