feat: harden API safety and expand command docs with full test coverage

commands/storage.md

@@ -0,0 +1,33 @@
+---
+description: Query Unraid storage, shares, and disk information
+argument-hint: [action] [additional-args]
+---
+
+Execute the `unraid_storage` MCP tool with action: `$1`
+
+## Available Actions (6)
+
+**Shares & Disks:**
+- `shares` - List all user shares with sizes and allocation
+- `disks` - List all disks in the array
+- `disk_details` - Get detailed info for a specific disk (requires disk identifier)
+- `unassigned` - List unassigned devices
+
+**Logs:**
+- `log_files` - List available system log files
+- `logs` - Read log file contents (requires log file path)
+
+## Example Usage
+
+```
+/unraid-storage shares
+/unraid-storage disks
+/unraid-storage disk_details disk1
+/unraid-storage unassigned
+/unraid-storage log_files
+/unraid-storage logs /var/log/syslog
+```
+
+**Note:** Log file paths must start with `/var/log/`, `/boot/logs/`, or `/mnt/`
+
+Use the tool to retrieve the requested storage information and present it clearly.