PRICE-01: Dutch dates, no redirects with the token, more checks

- The notification, status row and Home line name an earlier day in the
  language of the text ("13 okt om 21:00"); the Dutch title is "Prijzen
  ontbreken", so the body no longer repeats it.
- The token request does not follow redirects: the host is fixed in code.
- A step back up to the saved prices is one INFO line.
- Tests: whole status payload free of the token, a redirect, the 5-decimal
  edge of the old average, modes plan equal to generic_dayahead's.

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bdqr7PiaHcBnzPituu2yTC

goodwe_controller/app/ui_text/en.json

@@ -412,6 +412,7 @@
     "cycle_waits": "{name} waits its turn for the monthly cycle.",
     "no_prices_yet": "No prices yet, maintenance waits.",
     "no_prices_since": "No prices since {at}, maintenance waits.",
+    "no_prices_since_day": "No prices since {day} {month} at {at}, maintenance waits.",
     "step_in": "The batteries step in above {kw}.",
     "step_in_would": "The batteries would step in above {kw}.",
     "period": "This 15-minute period is heading for {kw}.",

goodwe_controller/app/ui_text/nl.json

@@ -347,6 +347,7 @@
     "cycle_waits": "{name} wacht zijn beurt af voor de maandelijkse cyclus.",
     "no_prices_yet": "Nog geen prijzen, onderhoud wacht.",
     "no_prices_since": "Geen prijzen sinds {at}, onderhoud wacht.",
+    "no_prices_since_day": "Geen prijzen sinds {day} {month} om {at}, onderhoud wacht.",
     "step_in": "De batterijen springen bij boven {kw}.",
     "step_in_would": "De batterijen zouden bijspringen boven {kw}.",
     "period": "Dit kwartier gaat richting {kw}.",