feat: add independent Bell authentication and RBAC (#12)

Bell/web/src/store/modules/identity.js

@@ -0,0 +1,13 @@
+import { currentUser, login, logout } from '../../api/auth'
+
+export default {
+  namespaced: true,
+  state: () => ({ user: null, checked: false }),
+  getters: { has: state => permission => Boolean(state.user?.permissions?.includes(permission)) },
+  mutations: { setUser (state, user) { state.user = user; state.checked = true } },
+  actions: {
+    async restore ({ commit }) { try { commit('setUser', await currentUser()) } catch (_) { commit('setUser', null) } },
+    async login ({ commit }, form) { const result = await login(form); commit('setUser', result.user); return result.user },
+    async logout ({ commit }) { try { await logout() } finally { commit('setUser', null) } }
+  }
+}