Fall back to default namespace for workflow creation in REST

Elwyn Bensonrequested to merge
583694-use-default-namespace-when-creating-workflows-via-rest-api into master

What does this MR do and why?

Adds equivalent fallback logic to the REST api as the existing graphQL mutation for creating workflows.

When a projectId is not provided, try fall back to provided namespaceId. If neither are provided, try fall back to users configured duo_default_namespace_with_fallback.

This will allow Duo CLI to be run outside of gitlab project folders, and make use of the existing duo_default_namespace_with_fallback setting.

References

#583694

Screenshots or screen recordings

Before After

How to set up and validate locally

Create workflows by providing a projectId, or a namespaceId, or neither (fall back to default namespace)

Click to expand 
╭─ ~gl  on 583694-use-default-namespace-when-creating-workflows-via-rest-api *3 ▓▒░────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────░▒▓ ✔  took 12s  at 12:23:05 PM ─╮
╰─ curl -X POST "http://gdk.test:3000/api/v4/ai/duo_workflows/workflows" \                                                                                                                                                                                              ─╯
  -H "PRIVATE-TOKEN: REDACTED" \
  -H "Content-Type: application/json" \
  -d '{
    "project_id": "1000000",
    "goal": "Test workflow creation",
    "workflow_definition": "chat"
  }'
{"id":165,"project_id":1000000,"namespace_id":null,"agent_privileges":[1,2,3,4,5,6],"agent_privileges_names":["read_write_files","read_only_gitlab","read_write_gitlab","run_commands","use_git","run_mcp_tools"],"pre_approved_agent_privileges":[1,2],"pre_approved_agent_privileges_names":["read_write_files","read_only_gitlab"],"workflow_definition":"chat","status":"created","allow_agent_to_request_user":true,"image":null,"environment":null,"ai_catalog_item_version_id":null,"workload":{"id":null,"message":null},"mcp_enabled":false,"gitlab_url":"http://gdk.test:3000"}%                                                                                                                                                                                                                                       
╭─ ~gl  on 583694-use-default-namespace-when-creating-workflows-via-rest-api *3 ▓▒░───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────░▒▓ ✔  at 12:29:09 PM ─╮
╰─ curl -X POST "http://gdk.test:3000/api/v4/ai/duo_workflows/workflows" \                                                                                                                                                                                              ─╯
  -H "PRIVATE-TOKEN: REDACTED" \
  -H "Content-Type: application/json" \
  -d '{
    "namespace_id": "1000000",
    "goal": "Test workflow creation",
    "workflow_definition": "chat"
  }'
{"id":166,"project_id":null,"namespace_id":1000000,"agent_privileges":[1,2,3,4,5,6],"agent_privileges_names":["read_write_files","read_only_gitlab","read_write_gitlab","run_commands","use_git","run_mcp_tools"],"pre_approved_agent_privileges":[1,2],"pre_approved_agent_privileges_names":["read_write_files","read_only_gitlab"],"workflow_definition":"chat","status":"created","allow_agent_to_request_user":true,"image":null,"environment":null,"ai_catalog_item_version_id":null,"workload":{"id":null,"message":null},"mcp_enabled":false,"gitlab_url":"http://gdk.test:3000"}%                                                                                                                                                                                                                                       
╭─ ~gl  on 583694-use-default-namespace-when-creating-workflows-via-rest-api *3 ▓▒░───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────░▒▓ ✔  at 12:29:23 PM ─╮
╰─ curl -X POST "http://gdk.test:3000/api/v4/ai/duo_workflows/workflows" \                                                                                                                                                                                              ─╯
  -H "PRIVATE-TOKEN: REDACTED" \
  -H "Content-Type: application/json" \
  -d '{
    "goal": "Test workflow creation with default namespace fallback",
    "workflow_definition": "chat"
  }'
{"id":167,"project_id":null,"namespace_id":1000000,"agent_privileges":[1,2,3,4,5,6],"agent_privileges_names":["read_write_files","read_only_gitlab","read_write_gitlab","run_commands","use_git","run_mcp_tools"],"pre_approved_agent_privileges":[1,2],"pre_approved_agent_privileges_names":["read_write_files","read_only_gitlab"],"workflow_definition":"chat","status":"created","allow_agent_to_request_user":true,"image":null,"environment":null,"ai_catalog_item_version_id":null,"workload":{"id":null,"message":null},"mcp_enabled":false,"gitlab_url":"http://gdk.test:3000"}%

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