feat(teams): place new team roles under their game's divider role

Auto-created team roles now land directly under the CS2 / LoL "divider" role
in the community guild's role list, keeping it grouped by game.

- config: CS2_DIVIDER_ROLE_ID / LOL_DIVIDER_ROLE_ID (season-specific, env
  overridable) exposed as TEAM_DIVIDER_ROLE_IDS keyed by game code.
- core/sheets: tag each team with its game (CS2/LoL) from the section title it
  sits under; shared _scan_sections generator feeds both parse_team_rosters and
  the new parse_team_games; get_game_for_team accessor + _team_game cache.
- core/member_sync: on creating a team role, position it at its game divider's
  slot (best-effort; left in place if game/divider unknown or move refused).
- .env.example + tests for game tagging and role placement.

Each participant is in exactly one game, so one role per team is unambiguous.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01R6JZkyszyDFuFtk25WBbcR

core/member_sync.py

@@ -247,6 +247,35 @@ async def sync_member(
     return result
 
 
+async def _position_team_role_under_divider(
+    guild: discord.Guild,
+    role: discord.Role,
+    team_name: str,
+    result: TeamSyncResult,
+) -> None:
+    """Move a freshly-created team role directly under its game's divider role.
+
+    The team's game comes from the registration sheet; the divider role IDs come
+    from config (``TEAM_DIVIDER_ROLE_IDS``). Best-effort: if the game/divider is
+    unknown or the move is refused, the role just stays where it was created.
+    """
+    game = sheets.get_game_for_team(team_name)
+    divider_id = config.TEAM_DIVIDER_ROLE_IDS.get(game) if game else None
+    if not divider_id:
+        return
+    divider = guild.get_role(divider_id)
+    if divider is None:
+        log.warning("Divider role %s for game %s not found in guild", divider_id, game)
+        return
+    try:
+        await role.edit(position=divider.position, reason="Team sync: paiguta tiimide alla")
+        log.info("Positioned team role %r under the %s divider", team_name, game)
+    except discord.Forbidden:
+        result.errors.append(f"Tiimirolli '{team_name}' paigutamiseks puudub õigus")
+    except discord.HTTPException as e:
+        result.errors.append(f"Tiimirolli '{team_name}' paigutamine ebaõnnestus: {e}")
+
+
 async def sync_team_role(
     member: discord.Member,
     guild: discord.Guild,
@@ -284,6 +313,8 @@ async def sync_team_role(
                 result.errors.append(f"Tiimirolli '{team_name}' loomiseks puudub õigus")
             except discord.HTTPException as e:
                 result.errors.append(f"Tiimirolli '{team_name}' loomine ebaõnnestus: {e}")
+            if result.created and desired is not None:
+                await _position_team_role_under_divider(guild, desired, team_name, result)
 
     # Team roles held but no longer registered for (switched teams / dropped out).
     to_remove = [r for r in member.roles if r.name in all_teams and r.name != team_name]