Fix Chili field loading and protect RmlUi files from Chili fallback

Fixed critical Chili fallback issue where field definitions weren't loading:

1. **Added Chili field loading**:
   - view.lua:238 now loads 'view/fields/' directory during Chili initialization
   - This provides ChoiceField, StringField, etc. needed by trigger windows

2. **Protected RmlUi files from loading during Chili fallback**:
   - Added guards to all rmlui_* files in view/ directory:
     - rmlui_manager.lua
     - rmlui_builder.lua
     - rmlui_component.lua
     - rmlui_editor_base.lua
     - rmlui_fields.lua
     - rmlui_field_compat.lua
   - These files now return early if RmlUi is not available
   - Prevents errors when InitializeChili loads the view/ directory

This ensures Chili UI works correctly when RmlUi is not available.

Author: claude

scen_edit/view/rmlui_builder.lua

@@ -2,6 +2,11 @@
 --- Provides helpers to dynamically generate RML/RCSS similar to Chili widget creation
 --- Used to replace dynamic Chili:New{} calls with RML generation
 
+-- Only load if RmlUi is available
+if not RmlUi then
+    return
+end
+
 RmlUiBuilder = {}
 
 --- Generate a unique ID for dynamic elements

scen_edit/view/rmlui_component.lua

@@ -2,6 +2,11 @@
 --- Simpler base class for RmlUi windows/components that aren't full dialogs
 --- (pickers, floating windows, etc.)
 
+-- Only load if RmlUi is available
+if not RmlUi then
+    return
+end
+
 RmlUiComponent = LCS.class{}
 
 function RmlUiComponent:init(rmlPath, title)

scen_edit/view/rmlui_editor_base.lua

@@ -2,6 +2,11 @@
 -- Provides AddField() API for editors - implementation-agnostic!
 -- ALL editors use ONE generic_editor.rml template that gets populated dynamically
 
+-- Only load if RmlUi is available
+if not RmlUi then
+    return
+end
+
 RmlUiEditorBase = LCS.class{}
 
 function RmlUiEditorBase:init()

scen_edit/view/rmlui_field_compat.lua

@@ -5,6 +5,11 @@
 -- When RmlUi is active, these create RmlUi fields
 -- This maintains the exact same API: StringField({name="foo", title="Foo"})
 
+-- Only load if RmlUi is available
+if not RmlUi then
+    return
+end
+
 StringField = RmlUiStringField
 NumericField = RmlUiNumericField
 BooleanField = RmlUiBooleanField

scen_edit/view/rmlui_fields.lua

@@ -3,6 +3,11 @@
 -- Implementation-agnostic: No need to touch RML/HTML to add fields!
 -- Just use: AddField(StringField({name="foo", title="Foo"}))
 
+-- Only load if RmlUi is available
+if not RmlUi then
+    return
+end
+
 -- Base Field Class
 RmlUiField = LCS.class{}
 

scen_edit/view/rmlui_manager.lua

@@ -1,6 +1,11 @@
 --- RmlUi Manager
 --- Manages RmlUi context and documents
 
+-- Only load if RmlUi is available
+if not RmlUi then
+    return
+end
+
 RmlUiManager = LCS.class{}
 
 function RmlUiManager:init()

scen_edit/view/view.lua

@@ -234,6 +234,9 @@ end
 
 function View:InitializeChili()
     -- Original Chili initialization
+    -- Load Chili field system first (required by other views)
+    SB.IncludeDir(Path.Join(SB.DIRS.SRC, 'view/fields'))
+
     SB.IncludeDir(Path.Join(SB.DIRS.SRC, 'view'))
     SB.Include(Path.Join(SB.DIRS.SRC, 'view/main_window/main_window_panel.lua'))
     SB.IncludeDir(Path.Join(SB.DIRS.SRC, 'view/main_window'))