fix(server): handle empty fcs

server/src/main.rs

@@ -37,6 +37,11 @@ async fn upload(
     let mut t = pool.begin().await?;
 
     for player in &data.players {
+        let fc = match player.free_company.trim() {
+            "" => None,
+            x => Some(x),
+        };
+
         sqlx::query!(
             // language=sqlite
             "
@@ -68,7 +73,7 @@ async fn upload(
             player.customize,
             player.level,
             player.job,
-            player.free_company,
+            fc,
             player.current_hp,
             player.max_hp,
 
@@ -81,7 +86,7 @@ async fn upload(
             player.customize,
             player.level,
             player.job,
-            player.free_company,
+            fc,
             player.current_hp,
             player.max_hp,
         )