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

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

@@ -0,0 +1,14 @@
+package mtmc.lang.sea.ast;
+
+import mtmc.lang.sea.Token;
+
+import java.util.List;
+
+public final class StatementBlock extends Statement {
+    public final List<Statement> statements;
+
+    public StatementBlock(Token start, List<Statement> children, Token end) {
+        super(start, end);
+        this.statements = List.copyOf(children);
+    }
+}