fix(time): futurize() must compare in HA-local wall time, not OS timezone

[pluskal]

Problem

Model.futurize() builds the reference "today"/"now" from date.today() / datetime.now(), which follow the OS/process timezone. The times it compares against come from parse_time() and are naive values in the HA-configured timezone. When the two differ (e.g. host on UTC, Home Assistant on Europe/Prague), a time-based callback that has just fired reschedules itself to an instant that is still "in the future" in OS-local terms but already in the past in HA-local terms. async_track_point_in_time then fires it again immediately, and the callback re-arms itself in a tight loop.

In practice this showed up as end_time/sunrise callbacks re-firing continuously for exactly the UTC-offset-sized window, flooding MQTT with repeated turn_off commands until the offset window elapsed.

This bites any deployment where the container/host timezone is not the same as the HA timezone (common on NixOS/containerized installs that keep the host on UTC).

Fix

Anchor both sides of the comparison to HA-local wall time using homeassistant.util.dt (already imported at module top):

now_local = dt.as_local(dt.now()).replace(tzinfo=None)
today = now_local.date()
...
if t.tzinfo is not None:
    t = dt.as_local(t).replace(tzinfo=None)
x = now_local

No behavior change when host TZ == HA TZ.

Testing

Deployed on an installation with host=UTC / HA=Europe/Prague; the callback re-fire loops / MQTT command floods around sunrise are gone, and normal time-restriction scheduling is unaffected.

[Copilot]

Pull request overview

This PR fixes a timezone mismatch in Model.futurize() by anchoring “now/today” to Home Assistant’s configured local wall time instead of the host/process timezone, preventing immediate re-fire loops when scheduling time-based callbacks.

Changes:

• Switch reference “now”/“today” to HA-local wall time via homeassistant.util.dt to avoid OS-tz vs HA-tz drift.
• Normalize timezone-aware inputs to HA-local naive datetimes before comparing/scheduling.

Comments suppressed due to low confidence (1)

custom_components/entity_controller/init.py:1709

• For consistency with the rest of the module (e.g., parse_time/make_naive), consider using make_naive() for the aware->HA-local-naive conversion instead of open-coding dt.as_local(...).replace(tzinfo=None).

        if t.tzinfo is not None:
            t = dt.as_local(t).replace(tzinfo=None)

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