feat: live Q7 (B01) map updates from unsolicited map pushes

[andig]

Summary

Q7 (B01) devices stream full SCMap frames (protocol 301 MAP_RESPONSE) on their own during cleaning — no polling, request or heartbeat needed. This wires those pushes into MapContentTrait so the rendered map stays current for the device lifetime.

Relevant to #827: the DP-110 heartbeat discussion there applies to Q10/ss-class devices. Verified from a plain MQTT subscription that sc-class Q7s (roborock.vacuum.sc05, fw 03.01.80) push a ~25 KB mapType: 0 frame roughly every 10 s during a clean (alongside prop.post DPS updates), so Q7 needs no heartbeat at all. Also the Q7 side of #739.

Changes

• B01Q7Channel.subscribe_map_pushes(): decodes unsolicited MAP_RESPONSE frames with the device map key; undecodable frames are logged and skipped.
• MapContentTrait.update_from_push(): re-parses pushed frames, updates the cached image/map data and notifies update listeners (TraitUpdateListener); malformed frames are dropped without clearing the cached map.
• Q7PropertiesApi.start()/close(): subscribe for the device lifetime, wired into RoborockDevice.connect()/close() like V1 and Q10.

Validation

• 2 new unit tests: push updates cache + notifies listener + unsubscribes on close; malformed push keeps previous content and stays silent.
• Full test suite passes locally; ruff check/format clean.
• Live-tested against a real sc05: a 45 s clean delivered 4 pushed frames through the new path, with the robot pose moving across frames and returning to the dock.

Independent of (but designed together with) the companion map-geometry PR #911 — with both, the pushed frames carry live robot pose and path, giving a live map without polling.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR adds support for Roborock Q7 (B01 / sc-class) devices to keep map rendering up-to-date by subscribing to unsolicited protocol-301 MAP_RESPONSE pushes and flowing those frames into the Q7 MapContentTrait cache + update listeners for the lifetime of a connected device.

Changes:

• Add Q7MapRpcChannel.subscribe_map_pushes() and wire it into B01Q7Channel to decode pushed MAP_RESPONSE frames.
• Extend Q7 MapContentTrait with update_from_push() + listener notifications to update cached map/image from pushed frames.
• Start/stop Q7 map-push subscription via Q7PropertiesApi.start()/close() and hook those into RoborockDevice.connect()/close(), with tests covering push updates and parse-failure behavior.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/devices/traits/b01/q7/test_map_content.py	Adds unit tests for push-driven map cache updates and parse-failure behavior.
tests/devices/traits/b01/q7/conftest.py	Extends FakeQ7Channel with a subscribe_map_pushes() test hook.
roborock/devices/traits/b01/q7/map_content.py	Adds push update handling, caching, and update listener notifications for Q7 map content.
roborock/devices/traits/b01/q7/init.py	Adds start()/close() lifecycle methods to manage the map-push subscription.
roborock/devices/rpc/b01_q7_channel.py	Introduces subscribe_map_pushes() to decode unsolicited MAP_RESPONSE frames via the map key.
roborock/devices/device.py	Wires Q7 properties start()/close() into device connect/close lifecycle.

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