Clarify OpenHands naming (replace “OSS” wording in docs and backend) (#12235)

Co-authored-by: openhands <openhands@all-hands.dev>

openhands/integrations/azure_devops/service/repos.py

@@ -15,7 +15,7 @@ class AzureDevOpsReposMixin(AzureDevOpsMixinBase):
         sort: str = 'updated',
         order: str = 'desc',
         public: bool = False,
-        app_mode: AppMode = AppMode.OSS,
+        app_mode: AppMode = AppMode.OPENHANDS,
     ) -> list[Repository]:
         """Search for repositories in Azure DevOps."""
         # Get all repositories across all projects in the organization

openhands/integrations/gitlab/service/repos.py

@@ -75,7 +75,7 @@ class GitLabReposMixin(GitLabMixinBase):
         sort: str = 'updated',
         order: str = 'desc',
         public: bool = False,
-        app_mode: AppMode = AppMode.OSS,
+        app_mode: AppMode = AppMode.OPENHANDS,
     ) -> list[Repository]:
         if public:
             # When public=True, query is a GitLab URL that we need to parse