fix: Remove Guest login and fix real Mandi data fallback

Author: JACK-AI7

app/src/main/java/com/example/LoginScreen.kt

@@ -327,20 +327,7 @@ fun LoginScreen(
                         }
                     }
 
-                    Spacer(Modifier.height(14.dp))
 
-                    // Continue as Guest Button
-                    TextButton(
-                        onClick = { viewModel.continueAsGuest() },
-                        modifier = Modifier.fillMaxWidth()
-                    ) {
-                        Text(
-                            "Skip for now · Continue as Guest",
-                            color = Color(0x99FFFFFF),
-                            fontWeight = FontWeight.Medium,
-                            fontSize = 14.sp
-                        )
-                    }
                 }
             }
 

app/src/main/java/com/example/MandiApiService.kt

@@ -133,9 +133,13 @@ object MandiApiService {
         commodity: String
     ): Result<List<MandiRecord>> = withContext(Dispatchers.IO) {
         // 1. Query Real Data from Supabase Database
-        val supabaseRecords = SupabaseApi.fetchMandiRates(state, commodity)
-        if (supabaseRecords.isNotEmpty()) {
-            return@withContext Result.success(supabaseRecords)
+        try {
+            val supabaseRecords = SupabaseApi.fetchMandiRates(state, commodity)
+            if (supabaseRecords.isNotEmpty()) {
+                return@withContext Result.success(supabaseRecords)
+            }
+        } catch (e: Exception) {
+            // Silently fallback to gov api if supabase fails
         }
 
         // 2. Query Direct Agmarknet Government API (Real-Time)