docs: web comments say what the app does, not how it came to be (#6277)

Rewrites the web app's comments to rule 32. Task, milestone, rule and
spec ids are gone; regression stories are restated as the trap they
guard (public auth routes, the menu's stopPropagation, universal loads
under adapter-static, metric deltas with their margin). Flutter and
Tauri mentions now name the Android app or a native shell, operator
quotes and dates are dropped, and one library's counts no longer
appear outside test fixtures. Verified with a TypeScript-scanner token
comparison (template literals and regex literals re-scanned): only
comment text changed.

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

web/src/lib/components/NetworkSettingsCard.svelte

@@ -27,7 +27,7 @@
       .map((s) => s.trim())
       .filter(Boolean)
   );
-  // The operator can count their proxies from what actually arrived rather
+  // An admin can count their proxies from what actually arrived rather
   // than guessing — one XFF entry per proxy in front of us.
   const suggested = $derived(chain.length);