fix: refine indentation logic for CHECK constraints, CASE expressions, and nested SELECT statements

- Add indentToCurrentLevel() method to DeparserContext for precise current-level indentation
- Fix over-indentation in CHECK constraint expressions by using proper context spawning
- Improve CASE statement WHEN/ELSE clause alignment using indentToCurrentLevel()
- Resolve nested SELECT indentation issues in SubLink by managing indentLevel properly
- Fix BoolExpr AND/OR indentation to align with logical grouping
- All pretty printing tests now pass including constraints-9, selects-13, misc-8, and misc-9

Co-Authored-By: Dan Lynch <[email protected]>

Author: devin-ai-integration[bot]

packages/deparser/src/visitors/base.ts

@@ -124,6 +124,13 @@ export class DeparserContext {
     return this.formatter.indent(text, indentCount);
   }
 
+  indentToCurrentLevel(text: string): string {
+    if (!this.prettyMode) {
+      return text;
+    }
+    return this.formatter.indent(text, this.indentLevel);
+  }
+
   newline(): string {
     return this.formatter.newline();
   }