feat: [US-061] - Choice option condition variable dropdown

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/types/flowchart.ts

@@ -21,6 +21,14 @@ export type Variable = {
   description?: string;
 };
 
+// Condition type for conditional edges and choice options
+export type Condition = {
+  variableName: string;
+  variableId?: string;
+  operator: '>' | '<' | '==' | '>=' | '<=' | '!=';
+  value: number | string | boolean;
+};
+
 // DialogueNode type: represents character speech/dialogue
 export type DialogueNodeData = {
   speaker?: string;
@@ -39,6 +47,7 @@ export type DialogueNode = {
 export type ChoiceOption = {
   id: string;
   label: string;
+  condition?: Condition;
 };
 
 // ChoiceNode type: represents branching decisions
@@ -70,14 +79,6 @@ export type VariableNode = {
 // Union type for all node types
 export type FlowchartNode = DialogueNode | ChoiceNode | VariableNode;
 
-// Condition type for conditional edges
-export type Condition = {
-  variableName: string;
-  variableId?: string;
-  operator: '>' | '<' | '==' | '>=' | '<=' | '!=';
-  value: number | string | boolean;
-};
-
 // FlowchartEdge type: represents connections between nodes
 export type FlowchartEdge = {
   id: string;