Extract vue-web-commons (npm) + personal-stack adopt

[jorisjonkers-dev-agents]

Objective: publish framework-neutral Vue utils/composables/JWT/Faro/form-toast-mutation helpers as @extratoast/vue-web-commons (build output + dist + d.ts + peerDeps). No PrimeVue/Vuetify convergence forced.

Notes: useAuth/useTheme need auth-routes/role/CSRF/storage/theme injected to be generic.

Work:

• Package vue-common properly (publishConfig, peerDependencies)
• personal-stack UIs replace workspace dep with @extratoast/vue-web-commons; update imports, theme CSS, pnpm workspace, Dockerfiles

Part of #605.