Reduce image logbook spam

[rotempasharel1]

Proposed change

Treat the image domain as a continuous/high-churn domain in logbook filtering.

Roborock map image entities can update frequently during cleaning, which can cause repeated Activity/Logbook entries even though the updates are expected behavior.

This keeps the image entity state updates intact, but avoids surfacing those high-frequency image updates as user-facing logbook activity.

Type of change

• Bugfix
• New integration
• New feature
• Dependency upgrade
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes Roborock integration spams Activity with frequent map update state changes during cleaning #161039

Checklist

• The code change is tested and works locally.

[home-assistant]

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[home-assistant]

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[Copilot]

Pull request overview

This PR updates Home Assistant’s Logbook filtering rules so the image domain is treated as a continuous/high-churn domain, reducing user-facing Activity/Logbook noise from frequently-updating image entities (e.g., Roborock map images).

Changes:

• Add image to Logbook’s ALWAYS_CONTINUOUS_DOMAINS to suppress high-frequency image state changes from appearing as logbook activity.
• Update the inline comment to reflect the expanded hard-coded domain list.

[Copilot]

Add/adjust logbook tests to cover the new behavior that image entities are treated as always-continuous and therefore excluded from logbook output/streams. The logbook component already has coverage for other always-continuous domains (e.g., counter/proximity), so extending those tests (e.g., tests/components/logbook/test_init.py::test_filter_continuous_sensor_values and/or websocket stream tests) to include an image.* entity would prevent regressions.

[MartinHjelmare]

Duplicate of #169240