chore(teams): log role batch vs bot_top when edit_role_positions fails

A 50013 on positioning despite Manage Roles points to a role in the reorder
batch sitting at/above the bot's top role. Log the batch and bot_top so the
offending role is identifiable from the journal.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XPRsW4tazVtYi2jNzVQkre

core/member_sync.py

@@ -480,6 +480,16 @@ async def apply_team_role_positions(
         return 0, errors
     except discord.HTTPException as e:
         errors.append(f"Tiimirollide järjestamine ebaõnnestus: {e}")
+        # 50013 here despite Manage Roles usually means a role in the batch sits
+        # at/above the bot's top role. Log the batch vs bot_top to pinpoint it.
+        log.warning(
+            "edit_role_positions failed (%s); bot_top=%d; batch=%s",
+            e, bot_top,
+            sorted(
+                ((r.name, r.position, target) for r, target in positions.items()),
+                key=lambda x: -x[1],
+            ),
+        )
         return 0, errors
     log.info("Positioned %d team role(s) under their dividers", len(positions))
     return len(positions), errors