blueprints: fix mismatched API schema and implementation

[melizeche]

Details

POST /blueprints/instances/import/ declared 204/400 responses but always returned 200, with two identical unreachable return statements.

• Collapse the duplicate return branches into one.
• Update @extend_schema to responses={200: BlueprintImportResultSerializer} to match actual behavior.

Wire response is unchanged (200 with {success, logs}), so frontend callers and existing tests are unaffected.

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Checklist

• Local tests pass (ak test authentik/)
• The code has been formatted (make lint-fix)

If an API change has been made

• The API schema and clients have been updated (make gen)

If changes to the frontend have been made

• The code has been formatted (make web)

If applicable

• The documentation has been updated
• The documentation has been formatted (make docs)

[netlify]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.19%. Comparing base (ebd18b4) to head (b8f9525).
⚠️ Report is 46 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #22087      +/-   ##
==========================================
- Coverage   93.23%   93.19%   -0.05%     
==========================================
  Files        1024     1024              
  Lines       59344    59344              
  Branches      400      400              
==========================================
- Hits        55327    55303      -24     
- Misses       4017     4041      +24     

Flag	Coverage Δ
conformance	36.88% <0.00%> (+<0.01%)	⬆️
e2e	42.06% <0.00%> (-0.01%)	⬇️
integration	32.78% <0.00%> (-0.50%)	⬇️
rust	0.00% <ø> (ø)
unit	92.15% <100.00%> (+<0.01%)	⬆️
unit-migrate	92.18% <100.00%> (-0.01%)	⬇️

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[github-actions]

authentik PR Installation instructions

Instructions for docker-compose

Add the following block to your .env file:

AUTHENTIK_IMAGE=ghcr.io/goauthentik/dev-server
AUTHENTIK_TAG=gh-b8f952558fa0b6fbe7b3b5cfff7e05a52856b5f8
AUTHENTIK_OUTPOSTS__CONTAINER_IMAGE_BASE=ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s

Afterwards, run the upgrade commands from the latest release notes.

Instructions for Kubernetes

Add the following block to your values.yml file:

authentik:
    outposts:
        container_image_base: ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s
global:
    image:
        repository: ghcr.io/goauthentik/dev-server
        tag: gh-b8f952558fa0b6fbe7b3b5cfff7e05a52856b5f8

Afterwards, run the upgrade commands from the latest release notes.

[authentik-automation]

🍒 Cherry-pick to version-2026.5 created: #22171