feat: support OpenClaw and Hermes agents

Add support for both engines on the Pinata platform plus the cheap drift
in the same files. (Previous commit on this branch covered create/engines/
versions; this rolls in the Hermes chat fix.)

For chat: OpenClaw streams the assistant turn token-by-token in
`data.delta`, while Hermes sends the full message in `data.text`. The CLI
only read `delta`, so Hermes responses were silently dropped after the
lifecycle:start event and chat appeared to hang. Read `data.text` when
`data.delta` is absent so both engines render correctly.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: iammatthias

CHANGELOG.md

@@ -20,6 +20,7 @@ All notable changes to this project will be documented in this file.
 - Allow flags to be passed after positional arguments (e.g. `files get <id> --network public`); previously such flags were silently ignored
 - Fix `agents templates update`/`submit`/`validate` for templates from a branch or subfolder: send the API's `ref` (with `path` for monorepos) instead of the removed `branch` field; `--branch`/`-b` remain as aliases for `--ref`
 - Surface server error messages (including validation errors) for the templates API instead of a generic "server returned status N"
+- `agents chat` now works with Hermes agents: Hermes sends assistant messages via `data.text` (whole message) instead of `data.delta` (streaming tokens), and the CLI was silently dropping anything without `delta`
 
 ### 🚜 Refactor
 

internal/agents/chat/stream.go

@@ -319,9 +319,13 @@ func StreamChat(ctx context.Context, agentID, token, model, session string, mess
 
 						switch payload.Stream {
 						case "assistant":
-							// Text delta
+							// Assistant text. OpenClaw streams token-by-token via
+							// `data.delta`; Hermes sends the full message in a
+							// single event via `data.text`. Handle both.
 							if delta, ok := payload.Data["delta"].(string); ok {
 								events <- StreamEvent{Type: StreamEventToken, Token: delta}
+							} else if text, ok := payload.Data["text"].(string); ok {
+								events <- StreamEvent{Type: StreamEventToken, Token: text}
 							}
 
 						case "tool":