Add agent diagnostic telemetry vocabulary

[ANcpLua]

Summary

• Register the fixed qyl.agent.diagnostic.snapshot event.
• Add nine value-free diagnostic summary attributes and five workflow-correlation attributes.
• Generate incubating constants, event names, registry resources, and analyzer facts from the qyl registry.
• Keep dynamic variable/check names as data values, never telemetry keys.
• Align the repository with .NET SDK 10.0.400, NuGet 7.9, and the 4.2.0 package line.

Stack role

Telemetry-vocabulary foundation for:

• Add agent diagnostic snapshot contracts qyl-api-schema#20 — protected diagnostic snapshot v1 contracts
• Add agent diagnostic snapshot capture qyl#550 — capture, projection, persistence, and retrieval
• Add workflow event inspection for agent diagnostics qyl.mcp#24 — workflow-event and protected-content inspection

Validation

The final tree passed:

• PR CI: SDK-400 restore/Release build, attribute hash and generated-tree checks, analyzer pipeline tests, and source-generation tests
• merged-main CI: the same gates plus package creation and packed-artifact smoke
• Local deterministic checks: VerifyAttributesHash, emit_attributes.py --check, emit_analyzer_registry.py --check, emit_registry_resources.py --check, and verify_deprecated_catalog.py

A local Release build attempt was canceled after it stopped producing output; it is not counted as validation.

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Feed the qyl vocabulary into every registry projection

When consumers use the advertised source-generation, public-registry, or TypeSpec paths, none of these new entries are visible: RegistryLoader, emit_registry_resources.py, and emit_typespec_keys.py read only resolved-registry.json, which contains no qyl.* catalog rows or the new event. Consequently, generating the qyl prefix produces no diagnostic/workflow constants, OpenResolvedRegistry() omits the vocabulary, and the qyl-api-schema projection cannot expose these correlation keys. Merge qyl-registry.json into the shared projection rather than loading it only in the attribute and analyzer emitters.

AGENTS.md reference: AGENTS.md:L3-L5

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