Adds electoral nuclei, leaderships, updates, and WhatsApp invite flows behind campaign auth, plus the consolidated schema migration that Vercel applies on deploy.
The flat config spread eslint-config-next's subpath imports as if they were
flat-config arrays, but that package ships legacy eslintrc configs, so lint
crashed before checking any file. Wrap them with FlatCompat (add
@eslint/eslintrc) and fix the two pre-existing react/no-unescaped-entities
errors so lint passes.
