Horoskop in kozmicni dogodki: dnevno AI generiranje + scheduler

- Nov dnevni scheduler (server/scheduler.ts): vsak dan ob zagonu in vsakih 6h
  preveri/generira horoskope in kozmicne dogodke (prej samo enkrat ob zagonu)
- Kozmicni dogodki so zdaj AI-generirani in dnevni (nova tabela cosmic_events
  + /api/cosmic-events), namesto hardcoded fiksnih datumov iz feb/mar 2026
- Naslovni horoskop widget bere pravi AI horoskop za danes (prej staticni tekst)
- Frontend: staleTime 30min + refetchOnWindowFocus za dnevno osvezevanje

shared/schema.ts

@@ -50,6 +50,21 @@ export const dailyHoroscopes = pgTable("daily_horoscopes", {
 
 export type DailyHoroscope = typeof dailyHoroscopes.$inferSelect;
 
+export const cosmicEvents = pgTable("cosmic_events", {
+  id: serial("id").primaryKey(),
+  dateStr: varchar("date_str", { length: 10 }).notNull(),
+  position: integer("position").notNull(),
+  title: varchar("title", { length: 120 }).notNull(),
+  description: text("description").notNull(),
+  dateRange: varchar("date_range", { length: 120 }).notNull(),
+  icon: varchar("icon", { length: 20 }).notNull(),
+  type: varchar("type", { length: 20 }).notNull(),
+  affectedSigns: text("affected_signs").notNull(),
+  createdAt: timestamp("created_at").notNull().defaultNow(),
+});
+
+export type CosmicEvent = typeof cosmicEvents.$inferSelect;
+
 export const users = pgTable("users", {
   id: varchar("id").primaryKey().default(sql`gen_random_uuid()`),
   username: text("username").notNull().unique(),