Add action economy split and cross-plugin chat level lookup (Adventure 2.5 steps 1-2)

Action economy: replace single daily action with 1 combat + 3 harvest
actions per day. Holidays grant +1 to each bucket. Rest consumes all
remaining actions. Arena remains outside both buckets.

- Add CombatActionsUsed/HarvestActionsUsed counters to AdventureCharacter
- Add CanDoCombat/CanDoHarvest/AllActionsUsed/HasActedToday helpers
- Update all 14 ActionTakenToday check sites across adventure, scheduler,
  babysit, twinbee, events, and render
- Morning DM shows action budget and grays out exhausted categories
- Activity resolution checks per-bucket availability before proceeding
- Midnight reset zeros both counters
- Post-action nudge shows remaining actions instead of holiday prompt

Cross-plugin lookup: export XPPlugin.GetLevel(), wire into AdventurePlugin
via p.chatLevel(userID) for upcoming chat level perks.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

internal/plugin/adventure_scheduler.go

@@ -96,8 +96,9 @@ func (p *AdventurePlugin) sendMorningDMs() {
 			continue
 		}
 
-		// If already acted today, skip
-		if char.ActionTakenToday {
+		// If all actions used today, skip
+		isHol, _ := isHolidayToday()
+		if char.AllActionsUsed(isHol) {
 			continue
 		}
 
@@ -225,7 +226,7 @@ func (p *AdventurePlugin) postDailySummary() {
 			continue
 		}
 
-		if !c.ActionTakenToday {
+		if !c.HasActedToday() {
 			ps.IsResting = true
 			if len(SummaryResting) > 0 {
 				ps.SummaryLine = SummaryResting[time.Now().Nanosecond()%len(SummaryResting)]
@@ -313,7 +314,7 @@ func (p *AdventurePlugin) midnightReset() error {
 			continue
 		}
 
-		if !char.ActionTakenToday {
+		if !char.HasActedToday() {
 			// If the player died today (or yesterday — covering late-night deaths
 			// that span midnight), grant a grace period: no shame, no streak reset.
 			if char.LastDeathDate == today ||