G1: remove the false 'Fixed tariff not used' notification. One INFO line at
start and an info note beside the setting (EN/NL) when price_service has a
non-blank static_profile; the old notification id is dismissed at start.
DOCS, migration step 5 and DECISIONS rule 7 now say what the code does.
S05: whitespace-only static_profile counts as not set.
G2: maintenance_enabled read through MaintConfig.from_options().
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bdqr7PiaHcBnzPituu2yTC
A new install names no inverter. When that is the startup gate's only
refusal, the add-on now serves the setup wizard in setup-only mode instead
of exiting 78. It builds no controller, MQTT client or meter task, its
HomeAssistant is read-only (every service call refuses before sending),
Controller refuses a read-only HomeAssistant, and /action answers 409.
Any other refusal still exits 78. DECISIONS/UX-15-setup-only-mode.md.
Wizard fixes from the UX-13 P4 test:
- F1: /config/validate converts what it can, so a conversion error blocks
its own step and the live checks still run; save 422 carries steps.
- F2: saves send the model the page opened (base); only keys this page
changed are written onto the blob stored now.
- A meter entity missing from Home Assistant is red on the last step.
- Step 1 says the reading went down after a skip that followed a fall.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>