fix(parser): allow glob expansion on unquoted suffix after quoted prefix

After a double-quoted string, check for adjacent unquoted content
(e.g. "$DIR"/*) and concatenate into a single Word token instead of
QuotedWord. This allows glob/brace expansion on the unquoted portion.

Closes #398

https://claude.ai/code/session_01WZjYqxm5xMPAEe7FSHJkDy

Author: claude

crates/bashkit/src/interpreter/mod.rs

@@ -9686,4 +9686,29 @@ bash /tmp/opts.sh -f xml -v
         assert_eq!(lines[0], "FORMAT=json VERBOSE=1");
         assert_eq!(lines[1], "FORMAT=xml VERBOSE=1");
     }
+
+    #[tokio::test]
+    async fn test_glob_with_quoted_prefix() {
+        // Issue #398: "$DIR"/* should glob-expand the unquoted /*
+        let mut bash = crate::Bash::new();
+        bash.fs()
+            .mkdir(std::path::Path::new("/testdir"), true)
+            .await
+            .unwrap();
+        bash.fs()
+            .write_file(std::path::Path::new("/testdir/a.txt"), b"a")
+            .await
+            .unwrap();
+        bash.fs()
+            .write_file(std::path::Path::new("/testdir/b.txt"), b"b")
+            .await
+            .unwrap();
+        let result = bash
+            .exec(r#"DIR="/testdir"; for f in "$DIR"/*; do echo "$f"; done"#)
+            .await
+            .unwrap();
+        let mut lines: Vec<&str> = result.stdout.trim().lines().collect();
+        lines.sort();
+        assert_eq!(lines, vec!["/testdir/a.txt", "/testdir/b.txt"]);
+    }
 }

crates/bashkit/src/parser/lexer.rs

@@ -1084,6 +1084,17 @@ impl<'a> Lexer<'a> {
             return Some(Token::Error("unterminated double quote".to_string()));
         }
 
+        // Check for continuation after closing quote: "foo"bar or "foo"/* etc.
+        // If there's adjacent unquoted content (word chars, globs, more quotes),
+        // concatenate and return as Word (not QuotedWord) so glob expansion works
+        // on the unquoted portion.
+        if let Some(ch) = self.peek_char() {
+            if self.is_word_char(ch) || ch == '\'' || ch == '"' || ch == '$' {
+                self.read_continuation_into(&mut content);
+                return Some(Token::Word(content));
+            }
+        }
+
         Some(Token::QuotedWord(content))
     }