[xavierjohn]

Summary

Fix the generator test-harness race that blocked the publishing run after #81. Compilation succeeded; Container_startup_has_a_bounded_readiness_deadline failed because the shared clock helper exhausted 6,000 virtual-time spins before queued asynchronous continuations ran. The same helper caused the earlier intermittent continuous-recovery failure.

• Replace blind clock pumping with a small timer-observing FakeTimeProvider. Tests advance only after the scenario registers its next timer.
• Await actual request completion, cancellation, and backpressure signals instead of polling predicates or relying on Task.Yield.
• Verify the readiness deadline at exactly 30 seconds for both repeated HTTP 503 responses and a hanging readiness request.
• Add a regression proving that the clock waits for timer registration and can advance two virtual minutes without a spin budget.

Only generator tests change. Runtime behavior, library contracts, dependencies, and the AgentDocs upgrade are unchanged.

Verification

• Exact-head CI passes, including the full solution build, coverage tests, package verification, and SQL cancellation checks.
• All 65 generator tests pass.
• 100 complete suite runs pass with four concurrent runners and DOTNET_PROCESSOR_COUNT=1: 6,500 successful test executions.
• Formatting and analyzer verification passes with dotnet format --verify-no-changes --no-restore.

The publishing workflow has not been rerun and no packages have been published as part of this fix.

[github-actions]

Test Results

471 tests  +4   469 ✅ +4   32s ⏱️ +4s
  6 suites ±0     2 💤 ±0 
  6 files   ±0     0 ❌ ±0 

Results for commit 839e0bf. ± Comparison against base commit 40524c7.

This pull request removes 1 and adds 5 tests. Note that renamed tests count towards both.

GenerateSli.Tests.ScenarioTests ‑ Container_startup_has_a_bounded_readiness_deadline

GenerateSli.Tests.ScenarioTests ‑ Advancing_virtual_time_honors_the_timeout_when_callbacks_keep_registering_timers
GenerateSli.Tests.ScenarioTests ‑ Container_startup_has_a_bounded_readiness_deadline(hanging: False)
GenerateSli.Tests.ScenarioTests ‑ Container_startup_has_a_bounded_readiness_deadline(hanging: True)
GenerateSli.Tests.ScenarioTests ‑ Virtual_time_skips_timers_that_were_disposed_before_they_were_observed
GenerateSli.Tests.ScenarioTests ‑ Virtual_time_waits_for_timer_registration_instead_of_spinning

♻️ This comment has been updated with latest results.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.71%. Comparing base (40524c7) to head (839e0bf).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #82   +/-   ##
=======================================
  Coverage   92.71%   92.71%           
=======================================
  Files          33       33           
  Lines        1002     1002           
  Branches      173      173           
=======================================
  Hits          929      929           
  Misses         50       50           
  Partials       23       23           

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