UI/UX: Fix alignment with right-aligned stat bars + optimize combat display

BREAKING: Changed format_stat_bar() to right-aligned format
- Bars now left-aligned, emoji+label on right
- Works with Telegram's proportional font (spaces don't work)
- Format: {bar} {percentage}% ({current}/{max}) {emoji} {label}

Combat improvements:
- Show BOTH HP bars on every turn (player + enemy)
- Eliminates redundant enemy HP display
- Better tactical awareness with complete state info

Files modified:
- bot/utils.py: Right-aligned format_stat_bar()
- bot/combat.py: Both HP bars on player/enemy turns
- bot/action_handlers.py: Fixed emoji handling
- bot/combat_handlers.py: Updated combat status display
- docs/development/UI_UX_IMPROVEMENTS.md: Complete documentation

Example output:
██████████ 100% (100/100) ❤️ Your HP
███░░░░░░░ 30% (15/50) 🐕 Feral Dog

bot/combat_handlers.py

@@ -151,8 +151,8 @@ async def handle_combat_back(query, user_id: int, player: dict, data: list = Non
         keyboard = await keyboards.combat_keyboard(user_id)
         
         message = f"⚔️ Combat with {npc_def.emoji} {npc_def.name}!\n"
-        message += format_stat_bar(f"{npc_def.emoji} Enemy HP", "", combat_data['npc_hp'], combat_data['npc_max_hp']) + "\n"
-        message += format_stat_bar("Your HP", "❤️", player['hp'], player['max_hp']) + "\n\n"
+        message += format_stat_bar("Your HP", "❤️", player['hp'], player['max_hp']) + "\n"
+        message += format_stat_bar("Enemy HP", npc_def.emoji, combat_data['npc_hp'], combat_data['npc_max_hp']) + "\n\n"
         message += "🎯 Your turn!" if combat_data['turn'] == 'player' else "⏳ Enemy's turn..."
         
         from .handlers import send_or_edit_with_image