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/parser.lalrpop

@@ -244,18 +244,18 @@ Field: Field = {
 };
 
 Value: Value = {
-    <NumberLit> => Value::Int(<>),
-    <DecimalLit> => Value::Float(<>),
-    <TextLit> => Value::String(<>),
-    <BoolLit> => Value::Bool(<>),
+    <NumberLit> => Value::Number(<>),
+    <DecimalLit> => Value::Decimal(<>),
+    <TextLit> => Value::Text(<>),
+    <BoolLit> => Value::Boolean(<>),
     "any" => Value::Any,
     <lo:NumberLit> ".." <hi:NumberLit> => Value::Range(
-        Box::new(Value::Int(lo)),
-        Box::new(Value::Int(hi))
+        Box::new(Value::Number(lo)),
+        Box::new(Value::Number(hi))
     ),
     <lo:DecimalLit> ".." <hi:DecimalLit> => Value::Range(
-        Box::new(Value::Float(lo)),
-        Box::new(Value::Float(hi))
+        Box::new(Value::Decimal(lo)),
+        Box::new(Value::Decimal(hi))
     ),
     <t:Time> => Value::Time(t),
     <d:Duration> => Value::Duration(d),
@@ -949,10 +949,10 @@ InequalityOp: CompOp = {
 };
 
 Literal: Expr = {
-    <NumberLit> => Expr::IntLit(<>),
-    <DecimalLit> => Expr::FloatLit(<>),
-    <TextLit> => Expr::StringLit(<>),
-    <BoolLit> => Expr::BoolLit(<>),
+    <NumberLit> => Expr::NumberLit(<>),
+    <DecimalLit> => Expr::DecimalLit(<>),
+    <TextLit> => Expr::TextLit(<>),
+    <BoolLit> => Expr::BooleanLit(<>),
 };
 
 // ===== Helpers =====