Merge PR #451: feat: Add Daytona environment backend

Authored by rovle. Adds Daytona as the sixth terminal execution backend
with cloud sandboxes, persistent workspaces, and full CLI/gateway integration.
Includes 24 unit tests and 8 integration tests.

pyproject.toml

@@ -39,6 +39,7 @@ dependencies = [
 
 [project.optional-dependencies]
 modal = ["swe-rex[modal]>=1.4.0"]
+daytona = ["daytona>=0.148.0"]
 dev = ["pytest", "pytest-asyncio"]
 messaging = ["python-telegram-bot>=20.0", "discord.py>=2.0", "aiohttp>=3.9.0", "slack-bolt>=1.18.0", "slack-sdk>=3.27.0"]
 cron = ["croniter"]
@@ -51,6 +52,7 @@ mcp = ["mcp>=1.2.0"]
 homeassistant = ["aiohttp>=3.9.0"]
 all = [
   "hermes-agent[modal]",
+  "hermes-agent[daytona]",
   "hermes-agent[messaging]",
   "hermes-agent[cron]",
   "hermes-agent[cli]",