Add workflow chat descriptor set

[louis4li]

Summary

• Populate workflow service revision artifacts with chat request/response protobuf descriptors.
• Include dependency descriptors in build order so payloadJson packing can resolve workflow chat payload types.
• Add regression coverage for workflow adapter descriptor generation.

Test plan

• dotnet test test/Aevatar.GAgentService.Tests/Aevatar.GAgentService.Tests.csproj --nologo --no-restore --filter ServiceImplementationAdaptersTests -v quiet
• bash tools/ci/test_stability_guards.sh
• Local Mainnet API smoke: created workflow service revision and schedule with payloadJson for type.googleapis.com/aevatar.ai.ChatRequestEvent; schedule creation returned 202 and readback showed scheduleKind: 1.

🤖 Generated with Claude Code

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Include descriptors in workflow replay hash

When a workflow revision is assembled, ArtifactHash is computed from the full prepared artifact, so this new ProtocolDescriptorSet changes the stored hash. The existing-revision replay path recomputes the expected workflow hash via ScopeBindingCommandApplicationService.BuildWorkflowArtifact, but that mirror artifact still omits the descriptor set; after creating a workflow revision, a retry/upsert with AllowExistingRevisionReplay for the same revision will compare the stored hash including these bytes with an expected hash without them and reject the identical revision as a different artifact.

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[louis4li]

Good catch. Fixed in 226aebf by moving descriptor-set construction into a shared ServiceProtocolDescriptorSetBuilder and using it from both WorkflowServiceImplementationAdapter and ScopeBindingCommandApplicationService.BuildWorkflowArtifact, so replay hash calculation includes the same ProtocolDescriptorSet bytes as prepared revisions. Also updated scope binding replay tests to compute the descriptor-inclusive workflow artifact hash.

[codecov]

Codecov Report

❌ Patch coverage is 78.94737% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.75%. Comparing base (90ea572) to head (c781618).
⚠️ Report is 356 commits behind head on feature/integrate.

Files with missing lines	Patch %	Lines
...e/Adapters/WorkflowServiceImplementationAdapter.cs	78.94%	6 Missing and 2 partials ⚠️

@@                  Coverage Diff                  @@
##           feature/integrate    #2383      +/-   ##
=====================================================
- Coverage              84.08%   83.75%   -0.33%     
=====================================================
  Files                   1139     1231      +92     
  Lines                  82320    94468   +12148     
  Branches               10705    12358    +1653     
=====================================================
+ Hits                   69219    79125    +9906     
- Misses                  8414     9857    +1443     
- Partials                4687     5486     +799     

Flag	Coverage Δ
ci	83.75% <78.94%> (-0.33%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...e/Adapters/WorkflowServiceImplementationAdapter.cs	87.77% <78.94%> (-6.46%)	⬇️

... and 256 files with indirect coverage changes

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