Read for global feature sdkstats bitmap and add a 15 second delay timer

[rads-1996]

TODO Since we have live metrics on by default now, we should track when it has been disabled instead.

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• The pull request does not introduce [breaking changes]
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.

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• Title of the pull request is clear and informative.
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• Pull request includes test coverage for the included changes.

[Copilot]

Pull request overview

This PR extends azure-monitor-opentelemetry-exporter statsbeat so it can accept Microsoft OpenTelemetry distro feature/instrumentation bitmasks (including lazily via callables) and OR them into the emitted statsbeat feature/instrumentation bitmaps, with accompanying test coverage.

Changes:

• Add new internal kwargs/fields for Microsoft OpenTelemetry distro feature + instrumentation bitmasks and plumb them from exporter → StatsbeatConfig → _StatsbeatMetrics.
• Update statsbeat metric emission to OR in these bitmasks (and resolve them lazily each collection when provided as callables).
• Add unit tests covering the new bitmask behavior across config, manager, and metric emission paths.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
sdk/monitor/azure-monitor-opentelemetry-exporter/azure/monitor/opentelemetry/exporter/statsbeat/_statsbeat_metrics.py	Accept and lazily resolve MOT distro bitmasks; OR them into statsbeat feature/instrumentation metrics.
sdk/monitor/azure-monitor-opentelemetry-exporter/azure/monitor/opentelemetry/exporter/statsbeat/_manager.py	Extend StatsbeatConfig and initialization flow to carry MOT distro bitmask fields into _StatsbeatMetrics.
sdk/monitor/azure-monitor-opentelemetry-exporter/azure/monitor/opentelemetry/exporter/export/_base.py	Capture MOT distro bitmask kwargs on exporter instances so statsbeat can consume them.
sdk/monitor/azure-monitor-opentelemetry-exporter/azure/monitor/opentelemetry/exporter/_constants.py	Define internal kwarg names for MOT distro bitmask inputs.
sdk/monitor/azure-monitor-opentelemetry-exporter/azure/monitor/opentelemetry/exporter/_storage.py	Minor comment formatting tweak in folder-permission checks.
sdk/monitor/azure-monitor-opentelemetry-exporter/tests/statsbeat/test_statsbeat.py	Update existing tests for new args and add an end-to-end flow test for MOT distro bits.
sdk/monitor/azure-monitor-opentelemetry-exporter/tests/statsbeat/test_metrics.py	Add metric-level tests validating feature/instrumentation OR-ing behavior.
sdk/monitor/azure-monitor-opentelemetry-exporter/tests/statsbeat/test_manager.py	Add tests ensuring StatsbeatConfig stores/copies/preserves MOT distro fields.

Comments suppressed due to low confidence (2)

sdk/monitor/azure-monitor-opentelemetry-exporter/azure/monitor/opentelemetry/exporter/statsbeat/_manager.py:142

• from_config() copies mot_distro_* fields from base_config, but the control-plane callback path uses StatsbeatManager.get_current_config() as the base config. That method currently returns a new StatsbeatConfig without the mot_distro_features / mot_distro_instrumentations values, so a reconfiguration would silently drop the distro bitmasks back to 0. Update get_current_config() to include these fields (or otherwise ensure reconfig preserves them).

        return cls(
            endpoint=base_config.endpoint,
            region=base_config.region,
            instrumentation_key=base_config.instrumentation_key,
            disable_offline_storage=disable_offline_storage_config,  # TODO: Use config value once supported
            credential=base_config.credential,
            distro_version=base_config.distro_version,
            mot_distro_features=base_config.mot_distro_features,
            mot_distro_instrumentations=base_config.mot_distro_instrumentations,
            connection_string=connection_string,
        )

sdk/monitor/azure-monitor-opentelemetry-exporter/azure/monitor/opentelemetry/exporter/statsbeat/_statsbeat_metrics.py:301

• self._feature and _StatsbeatFeature.NONE are ints; using identity comparison (is not) is not reliable for numeric equality and can behave unexpectedly across interpreters/optimizations. Use != here so the feature observation emission check is correct by value.

        # Don't send observation if no features enabled
        if self._feature is not _StatsbeatFeature.NONE:
            attributes = dict(_StatsbeatMetrics._COMMON_ATTRIBUTES)
            attributes.update(_StatsbeatMetrics._FEATURE_ATTRIBUTES)  # type: ignore
            observations.append(Observation(1, dict(attributes)))  # type: ignore