feat(teams): add opt-in /teamsync reposition to tidy existing team roles

Creation-time placement only positions NEW team roles. Team roles made before
divider placement existed (sitting at the bottom of the role list) stayed put.

Add `reposition_team_roles(guild)` and expose it via `/teamsync reposition:true`
(off by default, so the hourly task never reorders roles on its own). It moves
each EXISTING team role under its game's divider, sheet-driven:

- a role's game/divider comes from sheets.get_game_for_team;
- roles whose team is no longer in the sheet (or game unknown) are left alone;
- idempotent: a role already within its section band (below its own divider,
  above the next divider down) is skipped, so re-runs move nothing.

Adds RepositionSummary, TEAMSYNC_UI/OPT strings, and tests.

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

commands/economy_team_commands.py

@@ -16,7 +16,7 @@ from discord import app_commands
 
 from core import sheets
 from core.admin import bot_admin_check
-from core.member_sync import sync_all_team_roles
+from core.member_sync import reposition_team_roles, sync_all_team_roles
 import strings as S
 
 
@@ -27,8 +27,9 @@ def register_economy_team_commands(
 ) -> None:
     @tree.command(name="teamsync", description=S.CMD["teamsync"])
     @app_commands.guild_only()
+    @app_commands.describe(reposition=S.OPT["teamsync_reposition"])
     @bot_admin_check()
-    async def cmd_teamsync(interaction: discord.Interaction):
+    async def cmd_teamsync(interaction: discord.Interaction, reposition: bool = False):
         await interaction.response.defer(ephemeral=True)
 
         guild = interaction.guild
@@ -48,14 +49,22 @@ def register_economy_team_commands(
             return
 
         summary = await sync_all_team_roles(guild, log)
-        await interaction.followup.send(_format_summary(summary), ephemeral=True)
+        message = _format_summary(summary)
+
+        repo = None
+        if reposition:
+            repo = await reposition_team_roles(guild, log)
+            message += "\n\n" + _format_reposition(repo)
+
+        await interaction.followup.send(message, ephemeral=True)
         log.info(
-            "/teamsync - scanned=%d, assigned=%d, removed=%d, created=%d, errors=%d",
+            "/teamsync - scanned=%d, assigned=%d, removed=%d, created=%d, errors=%d%s",
             summary.scanned,
             summary.assigned,
             summary.removed,
             len(summary.created),
             len(summary.errors),
+            f", repositioned={repo.moved}" if repo else "",
         )
 
 
@@ -85,3 +94,17 @@ def _format_summary(summary) -> str:
         text += "\n\n" + S.TEAMSYNC_UI["no_changes"]
 
     return text
+
+
+def _format_reposition(repo) -> str:
+    lines = [S.TEAMSYNC_UI["reposition_header"]]
+    if not repo.moved:
+        lines.append(S.TEAMSYNC_UI["reposition_none"])
+    else:
+        lines.append(S.TEAMSYNC_UI["repositioned"].format(count=repo.moved))
+        lines.extend(repo.moves[:20])
+        if len(repo.moves) > 20:
+            lines.append(S.TEAMSYNC_UI["changes_more"].format(count=len(repo.moves) - 20))
+    if repo.errors:
+        lines.append(S.TEAMSYNC_UI["errors"].format(count=len(repo.errors)))
+    return "\n".join(lines)