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

[antsukanova]

COMPLETES # SPARK-844160

This pull request addresses

The SDK currently reports ratio, wasmMs, and jsMs of WASM runtime fields. These fields do not expose the status, capability decision, failure reason, or detailed benchmark measurements from the updated WASM runtime probe that we need now to test metrics results better.

by making the following changes

• Consume the updated WasmRuntimeProbe result
• Report status, capability, and reason
• Report null measurement values when the probe produces no measurements
• Update diagnostic logging with the new probe result
• Preserve once-only reporting and prevent probe failures from affecting meeting creation
• Add coverage for measured and unmeasured probe results

Change Type

• Bug fix
• New feature
• Breaking change
• Documentation update
• Tooling change
• Internal code refactor

Risk and downstream impact

The SDK public API is unchanged. Consumers of the js_sdk_wasm_runtime_performance telemetry event must use the new fields instead of ratio, wasmMs, and jsMs.

A new version of @webex/web-capabilities will contain the updated probe API but for now PR is with local linking version.

The following scenarios were tested

• Verified telemetry containing completed benchmark measurements
• Verified unknown results include the 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
• yarn workspace @webex/plugin-meetings test:unit --targets meetings/index.js
• yarn workspace @webex/plugin-meetings test:style — passing
• yarn workspace @webex/plugin-meetings build:src — passing

Testing screenshot from test app

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• This PR is related to
  • Feature
  • Defect fix
  • Tech Debt
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I certified that

• I have read and followed the contributing guidelines
• I discussed changes with code owners before 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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[chatgpt-codex-connector]

Replace the local web-capabilities link

With this dependency set to link:../../../../web-capabilities, a normal checkout does not contain the target (from packages/@webex/plugin-meetings it resolves outside this repo to a sibling web-capabilities; a repo-wide search found no such package). In clean CI or for published consumers without that sibling checkout, the meeting plugin either gets a dangling module link or falls back to an older transitive copy, so the new WasmRuntimeProbe API used by this commit is not reliably available. Please depend on a published version or add it as a real workspace before merging.

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