feat(plugin-meetings): report new WASM runtime metrics

[antsukanova]

COMPLETES

Related to SPARK-844160

This pull request addresses

• Update js_sdk_wasm_runtime_performance telemetry to support the new WASM-only probe.
• Make the probe easier to validate by reporting its decision, reason, and measurements.
• This changes telemetry fields only.

by making the following changes

• Consume the result provided by @webex/web-capabilities@1.13.0.
• Report status, capability, reason, divRatio, sqrtRatio, addNsPerOp, and median timings.
• Send null measurement fields when the probe cannot complete a benchmark.
• Remove the old ratio, wasmMs, and jsMs fields.
• Keep reporting limited to once per page and ensure probe failures cannot prevent meeting creation.

Change Type

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Tooling change
• Internal code refactor

The following scenarios were tested

Automated testing

• yarn workspace @webex/plugin-meetings test:unit Passed
• yarn workspace @webex/plugin-meetings build Passed

Manual verification

• Verified telemetry containing completed benchmark measurements.
• Verified unknown results include a reason and null measurement fields.
• Verified telemetry is emitted only once.
• Verified probe failures do not prevent meeting creation.
• Verified existing meetings do not rerun the probe.

The GAI Coding Policy And Copyright Annotation Best Practices

• GAI was not used (or, no additional notation is required)
• Code was generated entirely by GAI
• GAI was used to create a draft that was subsequently customized or modified
• Coder created a draft manually that was non-substantively modified by GAI
• Tool used for AI assistance
  • Github Copilot
  • Other — Cursor
• This PR is related to
  • Feature
  • Defect fix
  • Tech Debt
  • Automation

I certified that

• I have read and followed the contributing guidelines
• I discussed changes with code owners prior to submitting this pull request
• I have not skipped any automated checks
• All existing and new tests passed
• I have updated the documentation accordingly

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