test(pty-list): fix assertion for multiline session output

Update the ptyList session info test to match the actual multiline
output format produced by formatSessionInfo. Replaces the brittle
single-line assertion for PID, line count, and workdir with three
separate checks. This ensures the test matches formatted output and
prevents future false negatives.

Author: MBanucu

test/pty-tools.test.ts

@@ -236,7 +236,9 @@ describe('PTY Tools', () => {
       expect(result).toContain('[pty_123] Test Session')
       expect(result).toContain('Command: echo hello')
       expect(result).toContain('Status: running')
-      expect(result).toContain('PID: 12345 | Lines: 10 | Workdir: /tmp')
+      expect(result).toContain('PID: 12345')
+      expect(result).toContain('Lines: 10')
+      expect(result).toContain('Workdir: /tmp')
       expect(result).toContain('Total: 1 session(s)')
       expect(result).toContain('</pty_list>')
     })