refactor: extract hardcoded values to config (section 5.3)

- Add AGENT_USERNAMES and GITEA_ORG_FILTER settings to gitea/config.py
- Update core/dispatcher.py to use AGENT_USERNAMES from config
- Update gitea/client.py to use GITEA_ORG_FILTER in list_all_user_repos() and list_unread_notifications()

core/dispatcher.py

@@ -20,7 +20,7 @@ from gitea.tools.git_tools import GitTools
 from gitea.client import GiteaClient
 from core.coordinator_tools import CoordinatorTools
 from gitea.workspace import WorkspaceManager
-from gitea.config import AGENT_MODEL_ID
+from gitea.config import AGENT_MODEL_ID, AGENT_USERNAMES
 from gitea.models import (
     CommentModel,
     PullRequestFileModel,
@@ -79,7 +79,7 @@ def _is_awaiting_reply_helper(comments: list[CommentModel], ai_username: str) ->
         return False
     # Find the last agent comment index
     last_agent_idx: int = -1
-    agent_usernames = {ai_username, "agent-bot"}
+    agent_usernames = {ai_username, *AGENT_USERNAMES}
     for i, c in enumerate(comments):
         if c.user and c.user.login in agent_usernames:
             last_agent_idx = i