Enhance documentation for GitHub CLI upgrade instructions on Linux and add PowerShell command for Windows

Author: Johan Broberg

.claude/commands/post-review-comments.md

@@ -133,11 +133,54 @@ Before posting comments, ensure the GitHub CLI is up-to-date and the correct acc
    brew upgrade gh
    ```
 
-   **Linux**:
+   **Linux** (examples; use the one appropriate for your distribution):
+
+   Debian/Ubuntu (apt):
+   ```bash
+   sudo apt update && sudo apt install --only-upgrade gh -y
+   ```
+
+   Fedora/RHEL (dnf):
+   ```bash
+   sudo dnf upgrade gh -y
+   ```
+
+   openSUSE (zypper):
+   ```bash
+   sudo zypper refresh && sudo zypper update gh
+   ```
+
+   Arch Linux (pacman):
+   ```bash
+   sudo pacman -Syu gh
+   ```
+
+   Alpine (apk):
+   ```bash
+   sudo apk update && sudo apk upgrade gh
+   ```
+
+   Fedora/RHEL (dnf):
+   ```bash
+   sudo dnf upgrade gh -y
+   ```
+
+   openSUSE (zypper):
+   ```bash
+   sudo zypper refresh && sudo zypper update gh
+   ```
+
+   Arch Linux (pacman):
+   ```bash
+   sudo pacman -Syu gh
+   ```
+
+   Alpine (apk):
    ```bash
-   sudo apt update && sudo apt upgrade gh -y
+   sudo apk update && sudo apk upgrade gh
    ```
 
+   If your distribution is not listed or these commands fail, instruct the user to upgrade GitHub CLI manually using the official installation docs: https://cli.github.com/manual/installation
 4. **Verify upgrade succeeded**:
    ```bash
    gh --version

.claude/commands/resolve-review.md

@@ -181,6 +181,10 @@ For each issue marked "Agent Resolvable: Yes":
    ```bash
    rmdir .worktrees 2>/dev/null || true
    ```
+   On Windows, use PowerShell:
+   ```powershell
+   if ((Test-Path .worktrees) -and ((Get-ChildItem .worktrees -Force | Measure-Object).Count -eq 0)) { Remove-Item .worktrees }
+   ```
 
 **For Staged Reviews:**