Add core-v2 skill and make installable

README.md

@@ -4,6 +4,55 @@ Native Vue Router is a gesture-first navigation runtime for Vue 3 and Vue Router
 
 The repository includes a reusable headless core, a platform-adaptive visual preset, Capacitor and Electron adapters, and one messaging demo delivered as a PWA and through native hosts.
 
+## Install the routeless core-v2 experiment
+
+The repository root is an installable facade for
+`@native-vue-router/core-v2`. npm builds the package from source when it installs
+the Git dependency:
+
+```bash
+npm install git+https://git.harvmaster.com/Harvmaster/Native-Router-Vue.git
+```
+
+Import it by its package name and include the compositor stylesheet:
+
+```ts
+import {
+  OriginScene,
+  createOriginScene,
+  gesture,
+  originView,
+} from "@native-vue-router/core-v2";
+import "@native-vue-router/core-v2/style.css";
+```
+
+Pin production applications to a commit or tag:
+
+```bash
+npm install "git+https://git.harvmaster.com/Harvmaster/Native-Router-Vue.git#<commit-or-tag>"
+```
+
+Core-v2 is routeless and does not depend on Vue Router. Its usage guide and API
+are in [packages/core-v2/README.md](packages/core-v2/README.md) and
+[packages/core-v2/API.md](packages/core-v2/API.md).
+
+### Codex skill
+
+The Git package also includes
+[`build-with-native-vue-router-v2`](skills/build-with-native-vue-router-v2/SKILL.md),
+a Codex skill for creating and integrating routeless core-v2 applications.
+After installing the dependency, copy the skill into Codex's skill directory:
+
+```bash
+mkdir -p "${CODEX_HOME:-$HOME/.codex}/skills"
+cp -R \
+  node_modules/@native-vue-router/core-v2/skills/build-with-native-vue-router-v2 \
+  "${CODEX_HOME:-$HOME/.codex}/skills/"
+```
+
+Restart or reload Codex if necessary, then invoke it explicitly with
+`$build-with-native-vue-router-v2`.
+
 ## What works
 
 - Interactive edge pop that can be held indefinitely at any progress.