UX-13 P0: layout table, page<->options derivation, warning tier, entity list

The foundation for the new settings page. No visible UI change.

- app/uilayout.py: screen -> group -> part -> field for every option in
  config.yaml (67 fields, 11 derived, 0 hidden), with control, unit, display
  scale, step, entity kind, show conditions, Simple/wizard placement and
  "applies after a restart". Ranges stay in the schema, words in
  translations and the new app/ui_text/en.json.
- app/uimodel.py: options_to_ui()/ui_to_options() for the derived keys (one
  inverter vs the list, solar rows, static_profile from simple prices, a
  year-stamped region preset for the levies figure, and an OPT-11 hook for
  arbitrage_enabled that changes nothing yet). Unchanged derivations write
  the stored values back, so the round trip is exact.
- validate.py: validate.Note, a warn/info tier. Each logged warning is also
  a note when a list is passed; config_notes() adds checks that need live
  data (missing entity, a kW sensor read as W, a limit below this month's
  peak). /config/validate returns them as "notes". No refusal changed: 261
  recorded validator calls, 0 differ (tools/ux13_validator_calls.py).
- GET ha/entities: Home Assistant's entity list for the picker, read through
  hass.states(), cached 30 s, 10 s timeout. When HA is down it answers 200
  with the old list marked old, or an empty list that says why.
- DECISIONS/UX-13-one-layout-table.md amends UX-02's "no option key in UI
  code": keys may appear in uilayout.py and uimodel.py only, both tested.
- Tests: test_uilayout, test_uimodel (round trip over the recorded calls,
  the TEST-23 option files and config.yaml defaults), test_haentities, a
  warning-tier part in test_validate; test_messages scans notes and
  ui_text; test_pv and test_selfconfig part 7 widened on purpose.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LyR88rXETvwhTgx6yHE39p

goodwe_controller/test_validate.py

@@ -1808,6 +1808,47 @@ check("an UNREADABLE shadow_mode resolves to SHADOW, not to live - the "
       and shadow.engaged({"shadow_mode": ""}, control_started=True) is True
       and shadow.mode({"shadow_mode": "garbage"}) == "on")
 
+# --------------------------------------------------------------------------- #
+print("\nUX-13 - the warning tier: notes for the settings page, never refusals")
+from app.validate import Note, WATT_ENTITY_KEYS, config_notes  # noqa: E402
+
+_warned = base(integrator_max_w=3000, maintenance_discharge_w=2500,
+               price_provider="generic_dayahead", static_profile="")
+_notes = []
+_with = validate_startup_config(_warned, -5000, 5000, notes=_notes)
+check("a config with three logged warnings starts, and gives three notes, "
+      "each filed under the setting it names",
+      _with == [] and validate_startup_config(_warned, -5000, 5000) == []
+      and sorted(n.keys for n in _notes) == [
+          ("integrator_max_w",), ("maintenance_discharge_w",),
+          ("static_profile",)]
+      and all(n.tier == "warn" and f"({n.keys[0]})" in n.text for n in _notes))
+_refused = base(setpoint_entity="", integrator_max_w=3000)
+_n2 = []
+check("collecting notes changes no refusal",
+      validate_startup_config(_refused, notes=_n2)
+      == validate_startup_config(_refused) != [] and len(_n2) == 1)
+_rows = {"number.goodwe_setpoint": {"unit": None},
+         "sensor.soc": {"unit": "%"}, "sensor.batt": {"unit": "kW"}}
+_cn = config_notes(base(), entities=_rows)
+check("a battery power sensor in kW is warned about: the add-on takes it as "
+      "watts", [n.keys for n in _cn] == [("batt_entity",)]
+      and "kW" in _cn[0].text)
+_cn = config_notes(base(meter_entity="sensor.grid"), entities={})
+check("an entity Home Assistant does not have is named, and only the ones "
+      "this meter source and roster shape read",
+      sorted(n.keys[0] for n in _cn) == ["batt_entity", "meter_entity",
+                                         "setpoint_entity", "soc_entity"])
+check("with no entity list (Home Assistant down) those checks are skipped",
+      config_notes(base(), entities=None) == [])
+check("a peak limit below this month's peak is warned about",
+      [n.keys for n in config_notes(base(peak_cap_w=2500),
+                                    month_peak_w=2900)] == [("peak_cap_w",)]
+      and config_notes(base(peak_cap_w=3500), month_peak_w=2900) == [])
+check("pv.py converts solar units itself, so no solar key is read as watts",
+      not [k for k in WATT_ENTITY_KEYS if k.startswith("pv_")]
+      and isinstance(_cn[0], Note))
+
 # --------------------------------------------------------------------------- #
 print()
 if fails: