Harden real Vuforia tests against transient failures and exhausted allowance

[adamtheturtle]

Summary

Recovers seven commits of real-Vuforia test hardening that were stranded on the dependabot/uv/coverage-7.16.0 branch (#3521). That branch had been used as a working branch, which meant Dependabot could no longer rebase it, and the work was blocking a routine coverage bump.

The commits are rebased onto current main and preserved individually:

• Skip unavailable real Vuforia endpoints in tests
• Limit direct contract requests to five seconds
• Skip unavailable signed and malformed live cases
• Retry transient summary requests and skip signed states
• Skip exhausted real Model Target allowance
• Clarify summary retry documentation
• Skip malformed real requests before fixture setup

Conflict resolution

The branch predated #3522, which reworked the same files. Every conflict was prose that #3522 had already rewritten more completely, so main's wording was kept in each case. No behavioural change was resolved away.

Some of the original work has since landed independently via #3522, so the net diff here is smaller than the seven commits suggest.

Worth a look in review

assert_model_target_status here pytest.skips when the real Vuforia reports TRAINING_ALLOWANCE_EXCEEDED, whereas main (via #3522) reports the same condition as an xfail. Both behaviours are now present in the same function. That is a deliberate design call rather than a merge artefact, and it should be settled one way or the other before this merges.

Verification

• ruff format --check . and ruff check . clean
• pytest --skip-docker_build_tests --skip-docker_in_memory --skip-mock --skip-real . — 218 passed, 2290 skipped

The real-Vuforia paths these commits touch are only exercised by the credentialed CI job, so they are unverified locally by construction.

🤖 Generated with Claude Code

https://claude.ai/code/session_013uNQs54YVsYTu2tQEUmrho