[AV-131530] Implemented short-term graceful degradation fix

[nimiyajoseph]

Jira

• AV-131530

Description

Implemented the short-term graceful degradation fix in [app_endpoint_environment.go:29-42].

What changed: the shared sync.Once setup now tracks whether the current test was the one that actually ran provisioning. If provisioning fails, that first caller is skipped with the full setup error, and every later app-endpoint test skips with a concise “shared setup already failed” message instead of failing instantly with the cached error. That stops the red cascade from ~20 dependent tests.

Type of Change

• Bug fix (non-breaking change which fixes an issue).
• New feature (non-breaking change which adds functionality).
• Breaking change (fix or feature that would cause existing functionality to not work as expected).
• This change updates the ci/cd workflow.
• Documentation fix/enhancement.

Manual Testing Approach

How was this change tested and do you have evidence? (REQUIRED: Select at least 1)

• Manually tested
• Unit tested
• Acceptance tested
• Unable to test / will not test (Please provide comments in section below)

Testing

https://github.com/couchbasecloud/terraform-provider-couchbase-capella/actions/runs/26238064574/job/77218711652?pr=611

=== RUN TestAccAppEndpoint
app_endpoint_acceptance_test.go:13: skipping app endpoint acceptance tests: failed to provision shared test environment: {"code":4025,"hint":"The requested cluster details could not be found or fetched. Please ensure that the correct cluster ID is provided.","httpStatusCode":404,"message":"Unable to fetch the cluster details."}
--- SKIP: TestAccAppEndpoint (241.19s)
=== RUN TestAccAppEndpointInexistentCollection
app_endpoint_acceptance_test.go:54: skipping app endpoint acceptance test: shared test environment provisioning already failed
--- SKIP: TestAccAppEndpointInexistentCollection (0.00s)

Further comments

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[github-actions]

🚨 PR title "AV-131530 first caller is skipped with the full setup error" does not match the required format.

Requirements:
- Must start with [AV-XXXXX] where X is any number of digits
- After the bracket, must start with a Verb (Add, Update, Fix, etc.)
- The Verb must start with an uppercase letter

Expected format: [AV-XXXXX] Verb ...
Example: [AV-98659] Implement Cluster On/Off feature
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[github-actions]

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[factory-droid]

Droid finished @nimiyajoseph's task —— View job

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[factory-droid]

Validated all candidates and found no approved inline findings to post. The diff cleanly implements skip-on-shared-setup-failure behavior for app endpoint acceptance tests without introducing a concrete correctness regression.

[factory-droid]

Droid finished @nimiyajoseph's task —— View job

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[factory-droid]

Validated 1 candidate and approved 1 issue: provisioning setup errors are converted from test failures to skips, which can mask real regressions by allowing green CI on broken setup paths.

[PaulomeeCb]

+1