fix(bridge): 4 race condition fixes for approval lifecycle

bot.py

@@ -181,6 +181,7 @@ class GravityBot(commands.Bot):
         self.guild: discord.Guild | None = None
         self.auto_approve_projects: set[str] = set()  # projects with auto-approve enabled
         self._processed_message_ids: set[int] = set()  # dedup for Gateway event replay
+        self._approval_messages: dict[str, int] = {}  # FIX #4: request_id → discord message_id (for auto_resolved lookup)
         self.gateway = None  # Set by main.py in gateway mode
 
     def _write_command(self, project: str, text: str, **kwargs):
@@ -615,7 +616,9 @@ class GravityBot(commands.Bot):
                 try:
                     data = json.loads(f.read_text(encoding="utf-8-sig"))
                     if data.get("status") == "auto_resolved":
-                        msg_id = data.get("discord_message_id", 0)
+                        rid = data.get("request_id", "")
+                        # FIX #5: Use _approval_messages as fallback when discord_message_id is 0
+                        msg_id = data.get("discord_message_id", 0) or self._approval_messages.get(rid, 0)
                         project = data.get("project_name", Config.PROJECT_NAME)
                         if msg_id:
                             channel = await self._get_channel(project)
@@ -634,6 +637,8 @@ class GravityBot(commands.Bot):
                         f.unlink()
                         self._deferred_ids.pop(data.get("request_id", ""), None)
                         self._sent_commands.pop(data.get("request_id", ""), None)
+                        self._approval_messages.pop(data.get("request_id", ""), None)
+                        self._sent_approval_ids.discard(data.get("request_id", ""))
                 except (json.JSONDecodeError, OSError):
                     pass
 
@@ -765,6 +770,7 @@ class GravityBot(commands.Bot):
                 pass
 
         logger.info(f"Sent approval request: {request.request_id[:12]}")
+        self._approval_messages[request.request_id] = msg.id  # FIX #4: Track msg_id for auto_resolved lookup
 
     # ─── Discord → IDE Text Relay ─────────────────────────────────────