fix: Wizard-Dropdowns auf Radiobuttons, Abbrechen-Bug, ES-Element-Ausgleichsbogen

- vfl-in-abstand/-in-selection pruefen jetzt *vfl-wizard-abbruch-grund*
  (bisher liefen beide an vfl-in-value/-value-p vorbei, ein Klick auf
  "Abbrechen" im Wizard-Dialog fiel dadurch auf einen rohen getpoint
  zurueck statt die Kette zu beenden)
- Kombiniertes ES-Element-Dialogfeld (Ja/Nein + Winkel 90/30 + Seite
  links/rechts in einem Bildschirm, analog AS-Element)
- Separator VOR/NACH (horizontales Stueck) und Ist-Kettenende-Frage von
  Dropdown auf Radiobuttons umgestellt, "Nein" als Vorgabe
- Neigungswinkel-Eingabe bei Gefaellestrecke: 3 Grad als Vorgabe statt
  "Gegebene Hoehe"
- Zweig-C-Unterfrage (Endpunkt/Zielhoehe) bei "Steigende GF" bekommt
  eigenen Radiobutton-Dialog statt generischem Dropdown-Fallback
- ES-Element-Anhaengung nach einer steigenden GF (Zweig C) baut jetzt
  vorher per vfl-bogen-uebergang zurueck auf die Standard-Fallend-Basis
  (ES-Element-Hardware gibt es nur fuer diese Anfahrt)
- Stufe-2-Diagnosetext klargestellt (Mindestlaenge vs. Fixwert ohne
  GF-Bogen)
- Horizontal-VF: 1000mm-Mindestlaenge entfernt, GF1-Ziel-Hoehe-Feature
  wiederhergestellt

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

lang/en_GB.json

@@ -356,10 +356,10 @@
     "vfl-stufe2-diagnose-details": "\n  [Details] already-flat=%1 | aus-dx=%2 mm (entry, should be 0) | ein-dx=%3 mm ein-dz=%4 mm (ES element) | bogen-x1=%5 mm bogen-z1=%6 mm (entry bend 3->0 deg, only if not already-flat) | bogen-x2=%7 mm bogen-z2=%8 mm (exit bend 0->3 deg, always) | FESTE_HORIZONTAL=%9 mm (separator+motor station)",
     "vfl-stufe2-fest-kettenende": "\n  Motor station+separator+ES require: length=%1 mm, height drop=%2 mm (fixed, independent of angle)",
     "vfl-stufe2-fest-eingang": "\n  Reversing station+separator+motor station+ES require: length=%1 mm, height drop=%2 mm (fixed, independent of angle)",
-    "vfl-stufe2-minl": "\n  [Minimum 1] Without a straight VF section (GF sized to the target height): at least %1 mm of distance needed (available: %2 mm)",
-    "vfl-stufe2-minl-unmoeglich": "\n  [Minimum 1] Not solvable via distance: even without a GF bend the height already changes by %1 mm - the target only calls for %2 mm (not enough height difference for the fixed incline)",
-    "vfl-stufe2-minh": "\n  [Minimum 2] Without a GF bend (remainder as a straight VF section, which does not change height): at least %1 mm of height change needed (available: %2 mm)",
-    "vfl-stufe2-minh-unmoeglich": "\n  [Minimum 2] Not solvable via target height: even without a straight VF section and without a GF bend, the fixed footprint is already %1 mm - the distance only offers %2 mm",
+    "vfl-stufe2-minl": "\n  [Minimum distance] Without a straight VF section (GF sized to the target height): at least %1 mm of distance needed (available: %2 mm)",
+    "vfl-stufe2-minl-unmoeglich": "\n  [Minimum distance] Not solvable via distance: even without a GF bend the height already changes by %1 mm - the target only calls for %2 mm (not enough height difference for the fixed incline)",
+    "vfl-stufe2-minh": "\n  [Fixed value without GF bend] Remainder as a straight VF section (height-neutral): this split ALWAYS results in exactly %1 mm of height change, regardless of length - but the target height calls for %2 mm, so this only fits on an exact match",
+    "vfl-stufe2-minh-unmoeglich": "\n  [Fixed value without GF bend] Not solvable via target height: even without a straight VF section and without a GF bend, the fixed footprint is already %1 mm - the distance only offers %2 mm",
     "vfl-stufe2-ungueltig": "\n  Stage 2 (horizontal+GF) was invalid - stage 1 (VF angle search) was tried instead (see table above).",
     "vfl-frage-gf2-minimum": "\n  Calculated GF2=%1 mm is below the usual minimum length (%2 mm).\n  Yes = build with the exact calculated %1 mm (hits the target point exactly).\n  No = pad up to %2 mm (target point shifts further accordingly).",
     "vfl-fuege-block-ein": "\n  Inserting %1 ...",