Add manual retry flow for failed meeting summaries

config.py

@@ -24,9 +24,14 @@ async def save_config(config: dict) -> None:
         await f.write(json.dumps(config, indent=2))
 
 
-async def get_output_channel(guild_id: int) -> Optional[int]:
+async def _get_guild_config(guild_id: int) -> dict:
     config = await load_config()
-    return config.get(str(guild_id), {}).get("output_channel_id")
+    return config.get(str(guild_id), {})
+
+
+async def get_output_channel(guild_id: int) -> Optional[int]:
+    guild_config = await _get_guild_config(guild_id)
+    return guild_config.get("output_channel_id")
 
 
 async def set_output_channel(guild_id: int, channel_id: int) -> None:
@@ -36,3 +41,33 @@ async def set_output_channel(guild_id: int, channel_id: int) -> None:
     guild_config["output_channel_id"] = channel_id
     config[guild_key] = guild_config
     await save_config(config)
+
+
+async def get_retry_state(guild_id: int) -> Optional[dict]:
+    guild_config = await _get_guild_config(guild_id)
+    retry_state = guild_config.get("retry_state")
+    return retry_state if isinstance(retry_state, dict) else None
+
+
+async def set_retry_state(guild_id: int, file_path: str, source_channel_id: int | None, reason: str) -> None:
+    config = await load_config()
+    guild_key = str(guild_id)
+    guild_config = config.get(guild_key, {})
+    guild_config["retry_state"] = {
+        "file_path": file_path,
+        "source_channel_id": source_channel_id,
+        "reason": reason,
+    }
+    config[guild_key] = guild_config
+    await save_config(config)
+
+
+async def clear_retry_state(guild_id: int) -> None:
+    config = await load_config()
+    guild_key = str(guild_id)
+    guild_config = config.get(guild_key)
+    if not guild_config:
+        return
+    guild_config.pop("retry_state", None)
+    config[guild_key] = guild_config
+    await save_config(config)