Release 0.4.1

Stability and correctness after 0.4.0: unknown window states are no longer
read as closed; learned coefficients are reset selectively when the
configuration they were learned under changes; plans are discarded when an
input changed during optimization, and an overtaken run never publishes;
model accuracy (Model Error) is separated from the accuracy of published
forecasts (new Forecast Error sensor). Base coefficients report confidence;
sensor weights are labelled in the zone form. Still observation-only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

ROADMAP.md

@@ -93,7 +93,7 @@ configuration changes (now per-component fingerprints with selective
 recalibration, logged in `model_changes`); plans published from inputs that
 changed during optimization or by an overtaken run; and model accuracy reported
 as if it were forecast accuracy. Reload/unload tests now cover repeated reloads
-(one relay listener, one polling coordinator). Not yet released or tested on HAOS.
+(one relay listener, one polling coordinator). Released as 0.4.1; not yet tested on HAOS.
 
 ## Milestone 1 — Explainable forecasts and dashboards (target v0.3.0)