[Bug] `/status` displays spurious warning with empty invalid settings file list

Bug Description
/status shows a spurious warning: "Found invalid settings files: . They will be ignored."
The colon is followed only by a period — no file path is listed.

Environment:

• Claude Code version: 2.1.98
• OS: Windows 11 Home (10.0.26200)
• Shell: Git Bash
• Login: Claude Max account

What I verified:

• Only two settings files exist on disk, both valid JSON:
• C:\Users\tkash\.claude\settings.json
• C:\Users\tkash\.claude.json
• No project-level .claude/settings.json, no .claude/settings.local.json,

no managed settings under C:\ProgramData\.

• No CLAUDE_* env var overrides a settings path.
• /status itself reports "Setting sources: User settings" correctly.

Expected: no warning, since there are no invalid settings files.
Actual: the warning fires with an empty file list, suggesting the
"print warning" branch runs even when the invalid-files list is empty.

Environment Info

• Platform: win32
• Terminal: null
• Version: 2.1.98
• Feedback ID: b1cfff40-a6e3-437b-ac49-b9709eb078d8

Errors

[]