fix(sql): support brace placeholders in formatter

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

@@ -14,6 +14,18 @@ describe("sqlFormatter", () => {
     }
   });
 
+  it("preserves DBX brace placeholders in generic and MySQL SQL", async () => {
+    const sql = "SELECT ${x} AS shell_value, #{x} AS mybatis_value, '${date}' AS quoted_value";
+
+    for (const dialect of ["generic", "mysql"] as const) {
+      const formatted = await formatSqlText(sql, dialect);
+
+      expect(formatted).toContain("${x}");
+      expect(formatted).toContain("#{x}");
+      expect(formatted).toContain("'${date}'");
+    }
+  });
+
   it("falls back to the postgres formatter when the generic dialect cannot parse SQL", async () => {
     const formatted = await formatSqlText("SELECT 1::int AS id;", "generic");
 

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

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { DEFAULT_SQL_FORMATTER_SETTINGS, parseSqlFormatterConfig, serializeSqlFormatterConfig } from "@/lib/sql/sqlFormatterConfig";
+import { DEFAULT_SQL_FORMATTER_SETTINGS, parseSqlFormatterConfig, serializeSqlFormatterConfig, sqlFormatterOptions } from "@/lib/sql/sqlFormatterConfig";
 
 describe("sqlFormatterConfig shortcut storage", () => {
   it("does not serialize JSON editor shortcut settings", () => {
@@ -23,4 +23,20 @@ describe("sqlFormatterConfig shortcut storage", () => {
 
     expect(result.ok).toBe(true);
   });
+
+  it("merges DBX custom parameter types with user paramTypes", () => {
+    const options = sqlFormatterOptions({
+      paramTypes: {
+        positional: false,
+        named: ["@"],
+        custom: [{ regex: String.raw`\{\{[^}]+\}\}` }],
+      },
+    });
+
+    expect(options.paramTypes).toEqual({
+      positional: false,
+      named: ["@"],
+      custom: [{ regex: String.raw`\{\{[^}]+\}\}` }, { regex: String.raw`\$\{[^}]+\}` }, { regex: String.raw`#\{[^}]+\}` }],
+    });
+  });
 });