feat: «Mi día», the few tickets I pick for today

A home panel with the tickets picked for today (10 at most), crossed out
as they get done and counted («1 de 3 terminados»), my open tickets to
add with one click, and what was left unfinished on my last day to carry
over. «☀ Mi día» on a ticket adds it or takes it out. The day is the
person's own (YYYY-MM-DD from the browser); private, no history (Mongo
`my_days`).

API: myDay(day), addToMyDay, removeFromMyDay; GET /api/me/day,
PUT/DELETE /api/me/day/{issue}. MCP: my_day.

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

libs/web/tracker/domain/src/index.ts

@@ -2,6 +2,7 @@ export * from './lib/models/enums';
 export * from './lib/models/models';
 export * from './lib/models/bulk';
 export * from './lib/models/reminders';
+export * from './lib/models/my-day';
 export * from './lib/models/inputs';
 export * from './lib/models/workflow';
 export * from './lib/ports/gateways';