IFC-2339: E2E Playwright tests for webhook custom headers

[polmichel]

Why

The webhook custom headers feature (INFP-445) added CoreKeyValue/CoreStaticKeyValue/CoreEnvironmentVariableKeyValue schema entities and a headers relationship on CoreWebhook. All backend work and unit tests are complete across PRs #8590, #8597, #8602, #8603, and #8604, but no E2E Playwright tests existed for this feature. The spec explicitly calls for E2E coverage.

Closes IFC-2339

What changed

• Added 3 serial E2E Playwright tests in frontend/app/tests/e2e/webhook/webhook.spec.ts:

  1. Create a static key-value header — navigates to /objects/CoreKeyValue, creates a StaticKeyValue with name, key, and value
  2. Add header to webhook — opens the "Ansible EDA" webhook detail, navigates to the headers relationship view via ?tab=headers URL param (Attribute-kind relationships don't render visible tabs), associates the created header
  3. Remove header from webhook — dissociates the header and verifies removal

• Tests run serially between the existing "Access webhook" and "Delete webhook" tests, reusing the "Ansible EDA" webhook created by the existing test suite

How to review

Single file change: frontend/app/tests/e2e/webhook/webhook.spec.ts

How to test

# Requires a running Infrahub instance with demo data loaded
INFRAHUB_IMAGE_VER=local uv run invoke demo.start --wait
INFRAHUB_IMAGE_VER=local uv run invoke demo.load-infra-schema
INFRAHUB_IMAGE_VER=local uv run invoke demo.load-infra-data
cd frontend/app && npx playwright test tests/e2e/webhook/webhook.spec.ts

Impact & rollout

• Deployment notes: need ->
• IFC-2338: Documentation final updates and towncrier for webhook headers #8604 — IFC-2335: Unit tests for webhook custom headers
• IFC-2337: Invalidate webhook cache on reconcile_all #8603 — IFC-2337: Invalidate webhook cache on reconcile_all
• IFC-2334: Webhook cache invalidation on KeyValue changes #8602 — IFC-2334: Webhook cache invalidation on KeyValue changes
• IFC-2304: Runtime resolution of webhook custom headers #8597 — IFC-2304: Runtime resolution of webhook custom headers
• IFC-2303: CoreKeyValue schema definitions for webhook custom headers #8590 — IFC-2303: CoreKeyValue schema definitions for webhook custom headers

Checklist

• Tests added/updated
• Internal .md docs updated (internal knowledge and AI code tools knowledge)

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[codspeed-hq]

Merging this PR will improve performance by 39.04%

⚡ 12 improved benchmarks

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	test_nodemanager_querypeers	1.5 ms	1.3 ms	+21.71%
⚡	test_relationshipmanager_getpeer	155.9 µs	131.7 µs	+18.38%
⚡	test_base_schema_duplicate_CoreProposedChange	2.1 ms	1.7 ms	+28.62%
⚡	test_graphql_generate_schema	516.1 ms	371.2 ms	+39.04%
⚡	test_get_schema	323.6 ms	257.2 ms	+25.83%
⚡	test_schemabranch_process	1,026.1 ms	818.8 ms	+25.32%
⚡	test_schemabranch_duplicate	7.2 ms	5.8 ms	+25.84%
⚡	test_query_one_model	464.3 ms	352.8 ms	+31.62%
⚡	test_get_menu	245.4 ms	188.1 ms	+30.42%
⚡	test_query_rel_many	693.3 ms	522.4 ms	+32.72%
⚡	test_load_node_to_db_node_schema	66.2 ms	52.1 ms	+27.13%
⚡	test_query_rel_one	662.3 ms	500 ms	+32.46%

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_{Comparing pmi-20260314-e2e-webhooks-headers (5074fed) with stable (c396f66)¹}

Footnotes

1. No successful run was found on pmi-20260227-webhooks-ifc-2272 (44c9479) during the generation of this report, so stable (c396f66) was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩