Add OTP sign-in option + Account Linking (#276)

* feat(accounts): allow linking email password
* feat(auth): add OTP sign-in
* refactor(accounts): remove 'sonner' dependency and update toast imports
* feat(supabase): enable analytics and configure database seeding
* feat(auth): update email templates and add OTP template
* feat(auth): add last sign in method hints
* feat(config): add devIndicators position to bottom-right
* feat(auth): implement comprehensive last authentication method tracking tests

apps/web/next.config.mjs

@@ -46,6 +46,9 @@ const config = {
     resolveExtensions: ['.ts', '.tsx', '.js', '.jsx'],
     resolveAlias: getModulesAliases(),
   },
+  devIndicators: {
+    position: 'bottom-right',
+  },
   experimental: {
     mdxRs: true,
     reactCompiler: ENABLE_REACT_COMPILER,