[BUG] auth.json not found on Windows — wrong path in getAuthFilePath

[weissfl]

Description

On Windows, getAuthFilePath() in src/index.ts looks for auth.json at:

%LOCALAPPDATA%\opencode\auth.json

But OpenCode stores it at:

~/.local/share/opencode/auth.json

Steps to Reproduce

1. Install opencode-glm-quota on Windows
2. Authenticate via /connect with Z.AI Coding Plan
3. Run /glm_quota
4. See: "Credentials Not Found"

Root Cause

getAuthFilePath() only checks the Windows-specific path (LOCALAPPDATA), but OpenCode uses the XDG-compatible path (~/.local/share/opencode/auth.json) on all platforms including Windows. The function should check both paths.

Workaround

Copy-Item "$env:USERPROFILE\.local\share\opencode\auth.json" "$env:LOCALAPPDATA\opencode\auth.json"

Environment

• OS: Windows 11
• opencode-glm-quota: 1.8.0

[weissfl]

Correction: OS is Windows 10, not Windows 11. The bug is the same.