Add dual MPPT support and release 1.1.1 stability fixes

[groove-max]

Summary

• add dual-MPPT aggregation with optional PV2 inputs and per-MPPT panel overrides
• add smarter standard-load controls: actual power, active feedback, minimum battery SOC gating, and richer runtime diagnostics including idle
• switch allocator, watchdog, and auto-control dispatch paths to non-blocking Home Assistant service calls
• defer and coalesce power_distribution writes, and defer overdue debounce reruns, to avoid recursion on current HA releases
• restore missing advanced-settings translations and align the English configuration docs with the current UI wording
• fix options-flow device removal so deleted devices are reloaded out cleanly before the Home Assistant device-registry entry is removed
• ship the release metadata for 1.1.1 and keep that patch version for upstream because upstream has not published 1.1.1 yet

Validation

• GitHub Actions: Python package workflow passed on Python 3.12 and 3.13 for branch copilot/port-origin-main-20260510
• GitHub Actions: Python package workflow passed on Python 3.12 and 3.13 for tag v1.1.1
• ruff check .
• pylint --fail-under=9.0 custom_components
• pytest -q (168 passed)

Release note

• fork release v1.1.1 was reissued on the final validated commit 494daea
• upstream currently has no published v1.1.1, so reusing the patch version avoids artificial version churn for a CI-only follow-up