Add Ori as a lazy-loaded agent and a default-agent choice (#7709)

Ori is OpenRouter's harness: `ori claude`, `ori codex` and `ori opencode` start those agents against OpenRouter's model catalogue, and `ori code` is Ori's own agent. That last one is what the default-agent entry launches, bare — Ori has no approval prompt to skip, so there is no "don't stop to ask" flag to pass it the way the other agents get one.

The package is `github:OpenRouterLabs/ori-releases`, because upstream ships prebuilt binaries as release assets and publishes nothing to npm. mise's `github` backend picks the right asset per platform and verifies GitHub's artifact attestations on the way in; `ubi` resolves the same release but is deprecated for removal in mise 2027.1.

The menu glyph at U+E909 is OpenRouter's own mark. Ori publishes no logo of its own and its product page renders that one, so there was no Ori-specific mark to prefer over it.

Co-authored-by: Codex XHigh <noreply@openai.com>

bin/omarchy-agent

@@ -52,7 +52,7 @@ if omarchy-cmd-missing "$agent"; then
 fi
 
 # Agents launched from the keybinding or menu run unattended, so each one starts
-# with its own spelling of "don't stop to ask". Pi has no approval prompts.
+# with its own spelling of "don't stop to ask". Pi and Ori have none to skip.
 case "$agent" in
 opencode)
   command=(opencode --auto)
@@ -90,6 +90,11 @@ omp)
   command=(omp --auto-approve)
   [[ -n ${prompt:-} ]] && command+=(-- "$prompt")
   ;;
+ori)
+  # Ori is a harness launcher, and `ori code` is the agent it runs itself.
+  command=(ori code)
+  [[ -n ${prompt:-} ]] && command+=(--prompt "$prompt")
+  ;;
 pi)
   command=(pi)
   [[ -n ${prompt:-} ]] && command+=("$prompt")