chore(release): v0.21.0 (#288)

Three more coding engines you can install and drive: Kimi Code, Qwen
Code, and DeepSeek Code (#286, #287). `moshcode install kimi | qwen |
deepseek` now resolve, each with reviewed autonomous-mode flags behind
`agents` and a headless mode behind moshscript's ai().

Two of those entries route around a bad name. kimi installs the
kimi-code script directly, because the older code.kimi.com wrapper now
installs the deprecated Python kimi-cli and blocks on a prompt for 30
seconds. deepseek launches `deepseek-code` rather than the `dsc` alias
its package also installs, because `dsc` is Microsoft's Desired State
Configuration binary on a machine that has both.

`template list` grew a --json form for automation (#284).

Also fixes a DoH config that dropped its default guards when only one of
them was overridden (#285).

Minor, not patch: three new engines and a new output format.

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

Author: ralyodio

package.json

@@ -1,6 +1,6 @@
 {
   "name": "moshcode",
-  "version": "0.20.0",
+  "version": "0.21.0",
   "type": "module",
   "description": "moshcode — a metal wrapper for coding engines and native UGig/CoinPay workflow CLIs, with OpenPRD and moshscript",
   "bin": {