feat: auto_resolved sync + expired card update + DOM step_index

bot.py

@@ -573,6 +573,35 @@ class GravityBot(commands.Bot):
                 except (json.JSONDecodeError, OSError):
                     pass
 
+            # ── Check for expired pendings — update Discord card ──
+            for f in self.bridge.pending_dir.glob("*.json"):
+                try:
+                    data = json.loads(f.read_text(encoding="utf-8-sig"))
+                    if data.get("status") == "expired":
+                        msg_id = data.get("discord_message_id", 0)
+                        rid = data.get("request_id", "")
+                        project = data.get("project_name", Config.PROJECT_NAME)
+                        if msg_id:
+                            channel = await self._get_channel(project)
+                            if channel:
+                                try:
+                                    msg = await channel.fetch_message(msg_id)
+                                    embed = discord.Embed(
+                                        title="⏰ 만료됨",
+                                        description=f"```\n{data.get('command', '')[:500]}\n```",
+                                        color=discord.Color.light_grey(),
+                                    )
+                                    embed.set_footer(text=f"ID: {rid}")
+                                    await msg.edit(embed=embed, view=None)
+                                except discord.NotFound:
+                                    pass
+                        f.unlink()
+                        self._deferred_ids.pop(rid, None)
+                        self._sent_commands.pop(rid, None)
+                        self._sent_approval_ids.discard(rid)
+                except (json.JSONDecodeError, OSError):
+                    pass
+
             # ── Check for MERGE updates (step_probe updated command in already-sent pending) ──
             for f in self.bridge.pending_dir.glob("*.json"):
                 try: