refactor(ast): rename value types to Number/Decimal/Text/Boolean

Renamed AST value types for v0.3 naming convention:
- Value::Int -> Value::Number
- Value::Float -> Value::Decimal
- Value::String -> Value::Text
- Value::Bool -> Value::Boolean
- Expr::IntLit -> Expr::NumberLit
- Expr::FloatLit -> Expr::DecimalLit
- Expr::StringLit -> Expr::TextLit
- Expr::BoolLit -> Expr::BooleanLit

Updated all references across parser, resolver, validator, LSP,
query engine, tests, and editor.

storybook-editor/src/ui/main_editor.rs

@@ -73,10 +73,10 @@ fn character_editor_view<'a>(editor: &'a Editor, char_name: &str) -> Element<'a,
             // Show all fields with soft metadata styling
             for (field_name, field_value) in &char.fields {
                 let value_text = match field_value {
-                    | Value::Int(n) => format!("{}", n),
-                    | Value::Float(n) => format!("{}", n),
-                    | Value::String(s) => s.clone(),
-                    | Value::Bool(b) => format!("{}", b),
+                    | Value::Number(n) => format!("{}", n),
+                    | Value::Decimal(n) => format!("{}", n),
+                    | Value::Text(s) => s.clone(),
+                    | Value::Boolean(b) => format!("{}", b),
                     | Value::List(items) => {
                         format!("[{} items]", items.len())
                     },