Move types to lib directory for better organization

- Move types/location.ts to lib/types.ts
- Update all imports from @/types/location to @/lib/types
- Remove empty types/ directory
- Better aligns with Next.js conventions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

lib/devices.ts

@@ -1,4 +1,4 @@
-import { Device } from '@/types/location';
+import { Device } from '@/lib/types';
 
 export const DEVICES: Record<string, Device> = {
   '10': { id: '10', name: 'Device A', color: '#e74c3c' },

lib/types.ts

@@ -0,0 +1,30 @@
+export interface Location {
+  id?: number;
+  latitude: number | string; // NocoDB returns string
+  longitude: number | string; // NocoDB returns string
+  timestamp: string;
+  user_id: number | string; // NocoDB returns string "0" for MQTT devices
+  first_name: string | null;
+  last_name: string | null;
+  username: string | null;
+  marker_label: string | null;
+  display_time: string | null;
+  chat_id: number | string; // Also string in API response
+  battery?: number | null;
+  speed?: number | null;
+  created_at?: string;
+}
+
+export interface LocationResponse {
+  success: boolean;
+  current: Location | null;
+  history: Location[];
+  total_points: number;
+  last_updated: string;
+}
+
+export interface Device {
+  id: string;
+  name: string;
+  color: string;
+}