ci: make label-selected ASAN AI TAP shards reliable and complete

[renecannao]

Context

PR #6083 validates the label-selected AddressSanitizer path for the central TAP build and its fan-out. All four central ASAN build variants succeed and the broad TAP fan-out passes, but CI-ai-g1 and CI-ai-g2 expose existing GenAI/MCP test and plugin-lifecycle problems.

The failing AI artifacts contain no ASAN or LeakSanitizer diagnostics. This tracker separates those findings from the ASAN workflow change so #6083 can remain focused.

This work intentionally leaves CI-unit-tests-asan-coverage unchanged.

Acceptance criteria

• A trivial v3.0 PR with the ci:asan label completes CI-ai-g1 and CI-ai-g2 unless a genuine sanitizer defect is found.
• All 22 tests declared by each AI group execute, or are explicitly reassigned to a documented workflow.
• MCP/GenAI variable initialization and runtime projection do not depend on test order.
• MCP endpoint tests use the plugin's explicit authentication contract.
• Stale shell tests, paths, helpers, and runtime dependencies are either modernized or removed from the groups.
• Vector database tests use deterministic correctness checks under instrumentation.

Work items

• genai: seed MCP and GenAI global-variable defaults on plugin initialization #6099
• genai: project loaded MCP variables into runtime_global_variables #6100
• test: align MCP TAP clients and endpoint tests with explicit bearer authentication #6101
• test: modernize or retire stale MCP and GenAI shell tests in AI TAP groups #6102
• ci: ensure all declared AI TAP tests are built and executed #6103
• GenAI tests require API keys and GenAI-enabled build #5531
• Missing mcp_test_helpers.sh for MCP TAP tests #5532
• MCP RAG endpoint and vector_db_performance test failures in ai-g1 #5533

Related

• Validation PR: test: verify label-selected TAP ASAN CI #6083
• General GenAI/MCP/RAG roadmap: GenAI / MCP / RAG improvement roadmap #5534

[coderabbitai]

🔗 Related PRs

#5725 - ci: add CI-unit-tests-tsan workflow + mysqlx-tsan-g1 TAP group [merged]
#6081 - ci: select TAP ASAN build from PR label [merged]
#6082 - docs(ci): document label-selected TAP ASAN mode [merged]
#6083 - test: verify label-selected TAP ASAN CI [merged]
#6097 - fix(ci): hand off GenAI plugin to AI shards [merged]

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