Gospel courtroom page: tabs, plea dropdown, plea email, Acts, accuser/charges, site nav and links; fix service worker for /salvation; courtroom contact type; accept community type; v2.39.0

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

server/data.js

@@ -1166,7 +1166,7 @@ export async function restoreFromBackup(filename) {
 // (These are defined here rather than study-helpers to avoid circular imports)
 
 export function normalizeMessageType(value) {
-  if (value === 'question' || value === 'testimony' || value === 'topic') return value
+  if (value === 'question' || value === 'testimony' || value === 'topic' || value === 'gospel' || value === 'community') return value
   return 'general'
 }