chore: version bump — iso-route 0.3.1

Patch release for the standard-preset codex default fix (f49fddd).
Content-only change in presets/standard.yaml; no API surface.

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

Author: AceGreenman

package-lock.json

@@ -1,5 +1,17 @@
 # @razroo/iso-route
 
+## 0.3.1
+
+### Patch Changes
+
+- f49fddd: `standard` preset: add an explicit `default.targets.codex`
+  (`openai/gpt-5.4`) so a Codex user running `extends: standard` with
+  no further overrides gets a natively-routable OpenAI model instead
+  of the Anthropic default flattened as-is. Also tightens the preset
+  header comment to cite the specific harness/provider docs used to
+  verify each pick (Claude Code model config, Cursor models, Codex
+  models, OpenCode models). Content-only — no API or CLI changes.
+
 ## 0.3.0
 
 ### Minor Changes

packages/iso-route/CHANGELOG.md

@@ -1,6 +1,6 @@
 {
   "name": "@razroo/iso-route",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "description": "Author one model policy; fan out to every harness that supports it. Translates role-based model selection into settings.json, config.toml, opencode.json, and a machine-readable resolved map.",
   "license": "MIT",
   "type": "module",