fix: add KUGETSU_TEMP_DIR to config template

Add KUGETSU_TEMP_DIR config option to cmd_init template with default
value of ~/.local/share/opencode/tool-output (opencode-allowed directory).

This allows users to configure a temp directory that opencode can access
instead of /tmp which may be blocked in headless mode.

Fixes #73

skills/kugetsu/scripts/kugetsu

@@ -1248,6 +1248,10 @@ cmd_init() {
 # Verbosity level for PM agent output (verbose, default, or quiet)
 # KUGETSU_VERBOSITY=default
 
+# Temporary directory for agent operations (default: ~/.local/share/opencode/tool-output)
+# Use this instead of /tmp which may be blocked by opencode in headless mode
+# KUGETSU_TEMP_DIR="$HOME/.local/share/opencode/tool-output"
+
 # Git server configurations
 # Format: GIT_SERVERS["hostname"]="https://hostname"
 # Add servers with: kugetsu server add <name> <url>