fix: support Windows agent command shims

package-lock.json

@@ -1,17 +1,18 @@
 {
   "name": "@game-crafttable/mcp-client",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@game-crafttable/mcp-client",
-      "version": "0.1.2",
+      "version": "0.1.3",
       "license": "UNLICENSED",
       "dependencies": {
         "@modelcontextprotocol/sdk": "latest",
         "@napi-rs/keyring": "^1.3.0",
         "commander": "^14.0.0",
+        "cross-spawn": "^7.0.6",
         "jsonc-parser": "^3.3.1",
         "open": "^10.2.0"
       },
@@ -20,6 +21,7 @@
         "crafttable-mcp-client": "dist/cli.js"
       },
       "devDependencies": {
+        "@types/cross-spawn": "^6.0.6",
         "@types/node": "latest",
         "esbuild": "latest",
         "tsx": "latest",
@@ -757,6 +759,16 @@
         "node": ">= 10"
       }
     },
+    "node_modules/@types/cross-spawn": {
+      "version": "6.0.6",
+      "resolved": "https://registry.npmjs.org/@types/cross-spawn/-/cross-spawn-6.0.6.tgz",
+      "integrity": "sha512-fXRhhUkG4H3TQk5dBhQ7m/JDdSNHKwR2BBia62lhwEIq9xGiQKLxd6LymNhn47SjXhsUEPmxi+PKw2OkW4LLjA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/node": {
       "version": "26.2.0",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-26.2.0.tgz",