Backport async X-Sense client foundation

[Wheemer]

Summary

Backport the reusable X-Sense client foundation from the current Home Assistant custom integration into python-xsense so this package can again act as the shared async client for X-Sense cloud, AWS IoT shadow, MQTT, ADDX camera, device, and action behavior.

This keeps Home Assistant platform code out of the library. The package now exposes clean async Python client/model/parser helpers; the HA integration can still decide separately how and whether to consume the library later.

What changed

• Make the public package async-only by exporting AsyncXSense and removing the old sync XSense client.
• Update Android app metadata, request signing fields, Cognito login/refresh handling, AWS token loading, AWS signing, and session-expiry behavior.
• Backport X-Sense /app API behavior, AWS IoT shadow read/write helpers, entity/device/station/house mapping, and model normalization.
• Backport MQTT helper behavior including topic construction, payload parsing, and shadow/presence topic handling.
• Add ADDX/VicoHome camera support including IPC registration, camera discovery/metadata merging, status fields, thumbnails, live-view helpers, WebRTC ticket/signaling support, stream protocol detection, camera settings/actions, record history, and AI service/history helpers.
• Add reusable event/parser helpers extracted from the HA coordinator for MQTT updates, camera history, AI detections, and self-test payloads.
• Add documented non-camera history helpers for daily/monthly, station/device, CO, temperature/humidity, and dispatch history endpoints.
• Add one-shot AWS shadow retry after 401/403 by refreshing AWS credentials, matching the ADDX auth retry pattern.
• Normalize door/opening payload aliases into isOpen for door sensors, including SBS10 child shadow payloads.
• Normalize security-line field notes from Thank you + show-and-tell: self-hosted control-room dashboard built on python-xsense #29 including openRemind, battery, RF, online, alarm, motion, armed, and alarm-mode surfaces.
• Add reusable station alarm-mode/armed-state model helpers without moving HA alarm platform code into the library.
• Consolidate the older open control-command PR work with async-only helpers for config writes, alarm/voice volume, station mode, SOS, fire drill, activation, install/signal/motion tests, light group power, and mute commands.
• Add tests covering auth/request shape, AWS signing/shadow requests, camera discovery/settings/history parsing, AI/WebRTC parsing, action payloads, MQTT parsing, model normalization, public API shape, consolidated command helpers, and security-line field notes.
• Update packaging/docs for the async client and Python 3.10+ support.

Supersedes older PRs

This PR supersedes the older overlapping PRs #22, #23, #24, and #25 by carrying their station action/data payload, device mapping/normalization, APK command, and MQTT live-update work forward in one async-only client branch with tests.

Upstream issue coverage

• Targets Action fails on station-less devices #15 with a station-less XS01-WX action regression test.
• Targets API Errors #14 with AWS shadow 401/403 credential-refresh retry coverage.
• Supports Question: Is it possible to subscribe to the "live messages" from the app? Or read history data? #12 and It doesn't return latest data  #7 with MQTT parsing plus documented history/latest-shadow read helpers.
• Supports Is it possible to get door sensor status? #10 with door status alias normalization into isOpen.
• Supports Implementing armed status (Disarm, Home and Away) #8 at the library layer with camera support and alarm-mode data helpers; HA platform exposure remains outside this PR by design.
• Incorporates the field notes from Thank you + show-and-tell: self-hosted control-room dashboard built on python-xsense #29 for the SBS50 security-line dashboard use case.

Deliberate boundary

This does not move Home Assistant entity descriptions, icons, device classes, config flows, registry cleanup, blueprints, translations, diagnostics, or platform setup into the library. It also does not reintroduce python-xsense as a dependency in the HACS integration.

Validation

• pytest -q -> 110 passed
• python -m compileall -q asynctest.py xsense tests
• git diff --check
• python setup.py check --metadata --strict
• python -m build --sdist --wheel
• clean wheel install, pip check, and import smoke for every xsense.* module
• dependency freshness checked against PyPI for aiohttp, boto3, botocore, pycognito, paho-mqtt, and pytest