Refactor: Restructure project package hierarchy and add initial implementation for assembler instructions, shell commands, and exception handling.

src/jvmMain/kotlin/mtmc/lang/sea/ast/ExpressionAccess.java

@@ -0,0 +1,17 @@
+package mtmc.lang.sea.ast;
+
+import mtmc.lang.sea.SeaType;
+import mtmc.lang.sea.Token;
+
+public final class ExpressionAccess extends Expression {
+    public final Expression value;
+    public final Token access;
+    public final Token prop;
+
+    public ExpressionAccess(Expression value, Token access, Token prop, SeaType type) {
+        super(value.start, prop, type);
+        this.value = value;
+        this.access = access;
+        this.prop = prop;
+    }
+}