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.

src/syntax/ast.rs

@@ -158,10 +158,10 @@ pub struct Field {
 /// Field value types
 #[derive(Debug, Clone, PartialEq)]
 pub enum Value {
-    Int(i64),
-    Float(f64),
-    String(String),
-    Bool(bool),
+    Number(i64),
+    Decimal(f64),
+    Text(String),
+    Boolean(bool),
     Range(Box<Value>, Box<Value>), // For templates: 20..40
     Time(Time),
     Duration(Duration),
@@ -466,10 +466,10 @@ pub enum Condition {
 /// Expression AST for conditions and queries
 #[derive(Debug, Clone, PartialEq)]
 pub enum Expr {
-    IntLit(i64),
-    FloatLit(f64),
-    StringLit(String),
-    BoolLit(bool),
+    NumberLit(i64),
+    DecimalLit(f64),
+    TextLit(String),
+    BooleanLit(bool),
     Identifier(Vec<String>),
     FieldAccess(Box<Expr>, String),
     Comparison(Box<Expr>, CompOp, Box<Expr>),