Update source code and remove runtime data from tracking

Add gitignore rules for browser session data, SQLite databases,
media downloads, and build artifacts. Remove previously tracked
runtime files from the repository.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/utils/rate-limiter.ts

@@ -70,4 +70,45 @@ export class RateLimiter {
       minutesSinceLastMessage: Math.round((Date.now() - this.lastMessageTime) / 60000),
     };
   }
+
+  /**
+   * Get active timer information for the dashboard
+   */
+  getTimers(): {
+    nextMessageAvailableAt: number | null;
+    hourlyResetAt: number;
+    isHourlyLimitReached: boolean;
+    messagesRemaining: number;
+  } {
+    const now = Date.now();
+    const minDelay = this.config.rateLimit.minDelayBetweenMessagesMs;
+    const maxMessages = this.config.rateLimit.maxMessagesPerHour;
+
+    // Calculate when the next message can be sent based on min delay
+    let nextMessageAvailableAt: number | null = null;
+    if (this.lastMessageTime > 0) {
+      const nextAvailable = this.lastMessageTime + minDelay;
+      if (nextAvailable > now) {
+        nextMessageAvailableAt = nextAvailable;
+      }
+    }
+
+    // Calculate when the hourly counter resets
+    const hourlyResetAt = this.hourStartTime + 3600000;
+
+    // Check if hourly limit is reached
+    const isHourlyLimitReached = this.messagesThisHour >= maxMessages;
+
+    // If hourly limit is reached, next message is available when the hour resets
+    if (isHourlyLimitReached) {
+      nextMessageAvailableAt = hourlyResetAt;
+    }
+
+    return {
+      nextMessageAvailableAt,
+      hourlyResetAt,
+      isHourlyLimitReached,
+      messagesRemaining: Math.max(0, maxMessages - this.messagesThisHour),
+    };
+  }
 }