fix(sql): preserve file associations and list selection

apps/desktop/src/lib/__tests__/savedSql/savedSqlExecutionTarget.spec.ts

@@ -5,6 +5,7 @@ const savedTarget = {
   connectionId: "saved-connection",
   database: "saved_database",
   schema: "saved_schema",
+  catalog: "saved_catalog",
 };
 
 describe("saved SQL execution targets", () => {
@@ -46,11 +47,13 @@ describe("saved SQL execution targets", () => {
         connectionId: "runtime-connection",
         database: "runtime_database",
         schema: "runtime_schema",
+        catalog: "runtime_catalog",
       }),
     ).toEqual({
       connectionId: "runtime-connection",
       database: "runtime_database",
       schema: "runtime_schema",
+      catalog: "runtime_catalog",
     });
   });
 });

apps/desktop/src/lib/__tests__/savedSql/savedSqlImportTarget.spec.ts

@@ -0,0 +1,40 @@
+import { describe, expect, it } from "vitest";
+import { savedSqlImportTarget } from "@/lib/savedSql/savedSqlImportTarget";
+
+describe("savedSqlImportTarget", () => {
+  it("inherits an explicitly associated local file target at the library root", () => {
+    expect(savedSqlImportTarget({ connectionId: "conn-1", database: "sales", catalog: "hive" })).toEqual({
+      connectionId: "conn-1",
+      database: "sales",
+      catalog: "hive",
+    });
+  });
+
+  it("keeps an unassociated local file unassociated at the library root", () => {
+    expect(savedSqlImportTarget({ connectionId: "", database: "" })).toEqual({ connectionId: "", database: "" });
+  });
+
+  it("keeps the destination folder connection and inherits a matching database", () => {
+    expect(savedSqlImportTarget({ connectionId: "conn-1", database: "sales", catalog: "iceberg" }, { connectionId: "conn-1" })).toEqual({
+      connectionId: "conn-1",
+      database: "sales",
+      catalog: "iceberg",
+    });
+  });
+
+  it("does not apply a database from a different connection to the destination folder", () => {
+    expect(savedSqlImportTarget({ connectionId: "conn-2", database: "analytics" }, { connectionId: "conn-1" })).toEqual({
+      connectionId: "conn-1",
+      database: "",
+      catalog: undefined,
+    });
+  });
+
+  it("uses the destination folder for an unassociated source", () => {
+    expect(savedSqlImportTarget({ connectionId: "", database: "" }, { connectionId: "conn-1" })).toEqual({
+      connectionId: "conn-1",
+      database: "",
+      catalog: undefined,
+    });
+  });
+});