refactor(desktop): organize lib modules by domain

apps/desktop/src/lib/__tests__/sql/sqlExecutionTarget.spec.ts

@@ -0,0 +1,12 @@
+import { describe, expect, it } from "vitest";
+import { resolveExecutableSql } from "@/lib/sql/sqlExecutionTarget";
+
+describe("resolveExecutableSql", () => {
+  it("uses selected SQL before cursor-mode resolution", () => {
+    const sql = "select 1;\n\nselect 2;";
+    const selectedSql = " select 2; ";
+    const cursorAfterFirstSemicolon = sql.indexOf(";") + 1;
+
+    expect(resolveExecutableSql(sql, selectedSql, { mode: "current", cursorPos: cursorAfterFirstSemicolon })).toBe("select 2;");
+  });
+});