feat(config): Add default dispatch configuration

Add default configuration for VPS agent dispatch worker with:
- Agent-specific hermes binary paths
- Validation timeout settings
- Command timeout settings
- Retry configuration

Resolves #350

config/dispatch-config.json

@@ -0,0 +1,18 @@
+{
+  "agents": {
+    "ezra": {
+      "host": "143.198.27.163",
+      "hermes_path": "/root/wizards/ezra/hermes-agent/venv/bin/hermes",
+      "username": "root"
+    },
+    "timmy": {
+      "host": "timmy",
+      "hermes_path": "/root/wizards/timmy/hermes-agent/venv/bin/hermes",
+      "username": "root"
+    }
+  },
+  "validation_timeout": 30,
+  "command_timeout": 300,
+  "max_retries": 2,
+  "retry_delay": 5
+}