Overhaul frontend organization and pause message polling during repeater operations

frontend/src/utils/urlHash.ts

@@ -0,0 +1,46 @@
+import type { Conversation } from '../types';
+
+export interface ParsedHashConversation {
+  type: 'channel' | 'contact' | 'raw';
+  name: string;
+}
+
+// Parse URL hash to get conversation (e.g., #channel/Public or #contact/JohnDoe or #raw)
+export function parseHashConversation(): ParsedHashConversation | null {
+  const hash = window.location.hash.slice(1); // Remove leading #
+  if (!hash) return null;
+
+  if (hash === 'raw') {
+    return { type: 'raw', name: 'raw' };
+  }
+
+  const slashIndex = hash.indexOf('/');
+  if (slashIndex === -1) return null;
+
+  const type = hash.slice(0, slashIndex);
+  const name = decodeURIComponent(hash.slice(slashIndex + 1));
+
+  if ((type === 'channel' || type === 'contact') && name) {
+    return { type, name };
+  }
+  return null;
+}
+
+// Generate URL hash from conversation
+export function getConversationHash(conv: Conversation | null): string {
+  if (!conv) return '';
+  if (conv.type === 'raw') return '#raw';
+  // Strip leading # from channel names for cleaner URLs
+  const name = conv.type === 'channel' && conv.name.startsWith('#')
+    ? conv.name.slice(1)
+    : conv.name;
+  return `#${conv.type}/${encodeURIComponent(name)}`;
+}
+
+// Update URL hash without adding to history
+export function updateUrlHash(conv: Conversation | null): void {
+  const newHash = getConversationHash(conv);
+  if (newHash !== window.location.hash) {
+    window.history.replaceState(null, '', newHash || window.location.pathname);
+  }
+}