Improves dashboard data handling and settings

Refactors the dashboard to improve data fetching, error handling, and overall user experience.

- Prevents errors on refresh by validating company ID.
- Improves date handling from CSV by using a `safeParseDate` function to avoid "Invalid Date" errors.
- Adds a timestamp for when metrics were last updated.
- Fixes a bug where the refresh was failing silently.
- Improves settings page by wrapping form elements with form tags.
- Adds autocomplete attributes on settings page.
- Adds database files to `.gitignore`.

lib/csvFetcher.ts

@@ -87,11 +87,18 @@ export async function fetchAndParseCsv(
     trim: true,
   });
 
+  // Helper function to safely parse dates
+  function safeParseDate(dateStr?: string): Date | null {
+    if (!dateStr) return null;
+    const date = new Date(dateStr);
+    return !isNaN(date.getTime()) ? date : null;
+  }
+
   // Coerce types for relevant columns
   return records.map((r) => ({
     id: r.session_id,
-    startTime: new Date(r.start_time),
-    endTime: r.end_time ? new Date(r.end_time) : null,
+    startTime: safeParseDate(r.start_time) || new Date(), // Fallback to current date if invalid
+    endTime: safeParseDate(r.end_time),
     ipAddress: r.ip_address,
     country: r.country,
     language: r.language,

lib/metrics.ts

@@ -96,5 +96,6 @@ export function sessionMetrics(
     totalTokens,
     totalTokensEur,
     sentimentThreshold: threshold,
+    lastUpdated: Date.now(), // Add current timestamp
   } as MetricsResult;
 }

lib/types.ts

@@ -85,6 +85,7 @@ export interface MetricsResult {
   totalTokens?: number;
   totalTokensEur?: number;
   sentimentThreshold?: number | null;
+  lastUpdated?: number; // Timestamp for when metrics were last updated
 }
 
 export interface ApiResponse<T> {