feat(admin): full legacy controller set in scene-inputs editor

The V2 scene-inputs editor only exposed ~15 of the content model's
~40 fields. Restore full parity with the legacy admin controller.

content-svc:
- SaveContentElementRequest + ContentElementResponse widened to the
  complete field set (text/font, direction/RTL, media, advanced, DP)
- ApplyElement / ToElementResponse map every field 1:1
  (Enum.TryParse for JustifyKind + AiInputType)

frontend (SceneInputsEditor):
- common fields up top; an "advanced" toggle reveals grouped sections:
  Text and Font, Direction (RTL/LTR), Media, Advanced, Design-Presets (DP)
- editing an element loads the full field set; rows show font/hidden badges
- nullable numbers sent as null, enums as named values (snake_case body)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

services/content/FlatRender.ContentSvc/Application/Services/SceneColorService.cs

@@ -211,25 +211,60 @@ public class SceneColorService(ContentDbContext db)
     {
         e.Key = req.Key;
         e.Title = req.Title;
+        e.LocalizedTitle = req.LocalizedTitle;
         e.Hint = req.Hint;
         e.Type = Enum.TryParse<ContentElementType>(req.Type, true, out var t) ? t : ContentElementType.Text;
         e.DefaultValue = req.DefaultValue;
         e.PositionInContainer = req.PositionInContainer;
+        // text + font
         e.IsTextBox = req.IsTextBox;
         e.MaxSize = req.MaxSize;
         e.FontSize = req.FontSize;
+        e.DefaultFontSize = req.DefaultFontSize;
+        e.FontFace = req.FontFace;
+        e.FontFaceName = req.FontFaceName;
+        e.DefaultFontFace = req.DefaultFontFace;
         e.IsFontChangeable = req.IsFontChangeable;
         e.IsFontSizeChangeable = req.IsFontSizeChangeable;
+        if (req.Justify != null && Enum.TryParse<JustifyKind>(req.Justify, true, out var j)) e.Justify = j;
+        e.CanJustify = req.CanJustify;
+        // direction / RTL
+        e.DirectionLayerKey = req.DirectionLayerKey;
+        e.DirectionLayerValue = req.DirectionLayerValue;
+        // media
         e.VideoSupport = req.VideoSupport;
         e.Width = req.Width;
         e.Height = req.Height;
         e.Thumbnail = req.Thumbnail;
+        e.MinDurationSec = req.MinDurationSec;
+        e.MaxDurationSec = req.MaxDurationSec;
+        // advanced
+        e.MappedList = req.MappedList;
+        e.CounterMode = req.CounterMode;
+        if (req.AiInputType != null && Enum.TryParse<AiInputType>(req.AiInputType, true, out var ai)) e.AiInputType = ai;
+        e.IsHidden = req.IsHidden;
+        e.IsFocused = req.IsFocused;
+        e.OpacityControllerKey = req.OpacityControllerKey;
+        e.VirtualCount = req.VirtualCount;
+        // design-preset variants
+        e.Dp1Image = req.Dp1Image; e.Dp1Title = req.Dp1Title;
+        e.Dp2Image = req.Dp2Image; e.Dp2Title = req.Dp2Title;
+        e.Dp3Image = req.Dp3Image; e.Dp3Title = req.Dp3Title;
+        e.Dp4Image = req.Dp4Image; e.Dp4Title = req.Dp4Title;
     }
 
     private static ContentElementResponse ToElementResponse(SceneContentElement e) => new(
-        e.Id, e.SceneId, e.Key, e.Title, e.Hint, e.Type.ToString(), e.DefaultValue,
-        e.PositionInContainer, e.IsTextBox, e.MaxSize, e.FontSize, e.IsFontChangeable,
-        e.IsFontSizeChangeable, e.VideoSupport, e.Width, e.Height, e.Thumbnail);
+        e.Id, e.SceneId, e.Key, e.Title, e.LocalizedTitle, e.Hint, e.Type.ToString(), e.DefaultValue,
+        e.PositionInContainer,
+        e.IsTextBox, e.MaxSize, e.FontSize, e.DefaultFontSize,
+        e.FontFace, e.FontFaceName, e.DefaultFontFace,
+        e.IsFontChangeable, e.IsFontSizeChangeable, e.Justify.ToString(), e.CanJustify,
+        e.DirectionLayerKey, e.DirectionLayerValue,
+        e.VideoSupport, e.Width, e.Height, e.Thumbnail, e.MinDurationSec, e.MaxDurationSec,
+        e.MappedList, e.CounterMode, e.AiInputType.ToString(),
+        e.IsHidden, e.IsFocused, e.OpacityControllerKey, e.VirtualCount,
+        e.Dp1Image, e.Dp1Title, e.Dp2Image, e.Dp2Title,
+        e.Dp3Image, e.Dp3Title, e.Dp4Image, e.Dp4Title);
 
     // ── helpers ─────────────────────────────────────────────────────────────