feat: scaffold v0.1 foundation

src/domain/selector.rs

@@ -0,0 +1,14 @@
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+
+use super::Address;
+
+/// Exactly one explicit Function Selector.
+#[derive(Clone, Debug, Eq, PartialEq, Serialize, Deserialize, JsonSchema)]
+#[serde(tag = "kind", content = "value", rename_all = "snake_case")]
+pub enum FunctionSelector {
+    /// Exact, case-sensitive Ghidra function name.
+    Name(String),
+    /// Exact function entry address.
+    Address(Address),
+}