fix: simplify workflow import - only trigger for new users

[acedatacloud-dev]

Changes

• Remove is_new_user parameter from _persist_acedatacloud_token - that function only handles token persistence now
• Only fire import task for new users - moved task call to OAuth callback, guarded by oauth_new_user. No more wasteful Celery tasks on every login
• Fix retry bug - old except Exception swallowed all exceptions, making autoretry_for dead code. Retries now work correctly
• Fix Explore setup - old _ensure_explore_apps imported into any user's workspace as side effect. New _register_explore_apps only looks up already-imported apps
• Parse YAML once - extracted _parse_workflow_yaml helper

[Germey]

LGTM

[github-actions]

Pyrefly Diff

base → PR

3256c3256
<   --> tasks/import_acedatacloud_workflow_templates_task.py:86:5
---
>   --> tasks/import_acedatacloud_workflow_templates_task.py:84:5
3258c3258
< 86 |     account.current_tenant_id = tenant_id
---
> 84 |     account.current_tenant_id = tenant_id

[github-actions]

Pyrefly Diff

base → PR

3256c3256
<   --> tasks/import_acedatacloud_workflow_templates_task.py:86:5
---
>   --> tasks/import_acedatacloud_workflow_templates_task.py:84:5
3258c3258
< 86 |     account.current_tenant_id = tenant_id
---
> 84 |     account.current_tenant_id = tenant_id