modularize frontend and implement new css and themes

src/state.rs

@@ -7,7 +7,8 @@ use std::{
 use tokio::sync::broadcast;
 
 pub const RESET_EVENT: &str = "__reset__";
-pub const CHAT_RESET_INTERVAL: Duration = Duration::from_secs(3 * 60);
+// Changed from 3 minutes to 20 minutes
+pub const CHAT_RESET_INTERVAL: Duration = Duration::from_secs(20 * 60);
 pub const RATE_LIMIT_WINDOW: Duration = CHAT_RESET_INTERVAL;
 pub const MESSAGE_LIMIT_PER_WINDOW: u32 = 60;
 pub const SESSION_LIMIT_PER_WINDOW: u32 = 10;
@@ -20,11 +21,8 @@ pub struct RateLimitEntry {
 
 pub struct AppState {
     pub sessions: DashMap<String, ChatSession>,
-    // broadcast channel: session_id -> sender
     pub notifiers: DashMap<String, broadcast::Sender<String>>,
-    // supporter broadcast for new sessions and updates
     pub supporter_notifier: broadcast::Sender<String>,
-    // in-memory rate limits, wiped with all other state every three minutes
     pub rate_limits: DashMap<String, RateLimitEntry>,
     reset_started: Mutex<Instant>,
 }