fix(query): default query tabs to auto-commit

apps/desktop/src/lib/__tests__/database/databaseFeatureSupport.spec.ts

@@ -115,11 +115,8 @@ describe("supportsTransaction", () => {
 });
 
 describe("defaultAutoCommitForDbType", () => {
-  it("defaults Oracle query tabs to manual transactions", () => {
-    expect(defaultAutoCommitForDbType("oracle")).toBe(false);
-  });
-
-  it("defaults other databases to auto-commit", () => {
+  it("defaults query tabs to auto-commit", () => {
+    expect(defaultAutoCommitForDbType("oracle")).toBe(true);
     expect(defaultAutoCommitForDbType("mysql")).toBe(true);
     expect(defaultAutoCommitForDbType("postgres")).toBe(true);
     expect(defaultAutoCommitForDbType("dameng")).toBe(true);

apps/desktop/src/lib/database/databaseFeatureSupport.ts

@@ -250,8 +250,8 @@ export function supportsTransaction(dbType?: string): boolean {
 
 /**
  * Default auto-commit mode when opening a query tab for the given database type.
- * Oracle defaults to manual transactions so edits require an explicit Commit.
+ * Query tabs default to auto-commit; users can explicitly switch to manual transactions.
  */
-export function defaultAutoCommitForDbType(dbType?: string): boolean {
-  return dbType !== "oracle";
+export function defaultAutoCommitForDbType(_dbType?: string): boolean {
+  return true;
 }