[Backend] Add default SAST profile
We need to add a new default SAST profile that will be automatically available (without requiring any additional steps) ### Requirements - The profile should be automatically available in the list of available profiles - No user action should be required to access this profile - The profile should include the following pipeline triggers: - `default_branch_pipeline` - Triggers SAST scans on the default branch pipelines - `merge_request_pipeline` - Triggers SAST scans on merge request pipelines ### Acceptance Criteria - [ ] Profile appears in available profiles list automatically - [ ] Profile includes `default_branch_pipeline` trigger - [ ] Profile includes `merge_request_pipeline` trigger *** _Description was generated using AI_
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