fix: restore --allowedTools flag broken in v1.3.0 pool refactor

The v1.3.0 process pool refactor changed --allowedTools to --tools ""
which disabled all CLI tools. This caused agents to output raw <tool_use>
XML as text instead of executing tools. Restored --allowedTools with
Bash, Read, Write, Edit, Glob, Grep in both spawnWarm() and callClaude()
cold-start paths. Bumped version to 1.3.1.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "openclaw-claude-proxy",
-  "version": "1.1.0",
+  "version": "1.3.1",
   "description": "OpenAI-compatible proxy that routes requests through Claude CLI — use your Claude Pro/Max subscription as an OpenClaw model provider",
   "type": "module",
   "bin": {