fix(home-assistant): disable deprecated http: config section on ha-dev

HA core has migrated the http: config (server_port, ip_ban_enabled,
login_attempts_threshold, use_x_forwarded_for, trusted_proxies) out of
configuration.yaml, causing "already been migrated and is now being
ignored" warnings. Disable http.enabled by default on home-assistant-dev,
mark the section deprecated in both charts, and document removal planned
for appVersion 2027.7.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

home-assistant/templates/deployment.yaml

@@ -42,6 +42,7 @@ spec:
             - name: config
               mountPath: /config
         {{- if .Values.http.enabled }}
+        # DEPRECATED: see http: comment in values.yaml. Removed once appVersion reaches 2027.7.
         - name: init-http
           image: busybox:latest
           env: