fix: move TIER_BADGES to module level and fix unknown tier fallback

- TIER_BADGES dict moved from inside get_card_embeds() to module level
- Unknown tiers now show no badge instead of silently promoting to [SF]

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

helpers/main.py

@@ -23,6 +23,9 @@ from utils import (
 from search_utils import *
 from discord_utils import *
 
+# Refractor tier badge prefixes for card embeds (T0 = no badge)
+TIER_BADGES = {1: "BC", 2: "R", 3: "GR", 4: "SF"}
+
 
 async def get_player_photo(player):
     search_term = player["bbref_id"] if player["bbref_id"] else player["p_name"]
@@ -115,8 +118,8 @@ async def get_card_embeds(card, include_stats=False) -> list:
         evo_state = await db_get(f"evolution/cards/{card['id']}")
         if evo_state and evo_state.get("current_tier", 0) > 0:
             tier = evo_state["current_tier"]
-            TIER_BADGES = {1: "BC", 2: "R", 3: "GR", 4: "SF"}
-            tier_badge = f"[{TIER_BADGES.get(tier, 'SF')}] "
+            badge = TIER_BADGES.get(tier)
+            tier_badge = f"[{badge}] " if badge else ""
     except Exception:
         pass