style(core): apply cargo fmt across routes, services, models, tests

Pure rustfmt reflow (import grouping, array/match-arm/call-arg wrapping,
alphabetized module decls, comment realignment). No semantic change:
full-diff and `git diff -w` both confirm logic byte-identical to 271c363;
workspace builds and all 74 core tests pass. Retained pre-existing WIP
brought forward after verification.

src/models/mod.rs

@@ -1,19 +1,19 @@
 pub mod achievement;
 pub mod card;
 pub mod chemistry_style;
-pub mod notification;
 pub mod club;
 pub mod draft;
+pub mod event;
 pub mod fut_champs;
 pub mod game_ext;
-pub mod event;
-pub mod season;
 pub mod market;
 pub mod match_result;
+pub mod notification;
 pub mod objective;
 pub mod pack;
 pub mod profile;
 pub mod reward;
 pub mod sbc;
+pub mod season;
 pub mod squad;
 pub mod statistics;

src/models/profile.rs

@@ -38,16 +38,16 @@ pub struct CreateProfileRequest {
 /// XP required to reach each level (cumulative total from level 1).
 /// Level 1 starts at 0 XP. Level 2 needs 500 total XP, etc.
 pub const XP_THRESHOLDS: &[i64] = &[
-    0,      // level 1
-    500,    // level 2
-    1200,   // level 3
-    2000,   // level 4
-    3000,   // level 5
-    4200,   // level 6
-    5600,   // level 7
-    7200,   // level 8
-    9000,   // level 9
-    11000,  // level 10
+    0,     // level 1
+    500,   // level 2
+    1200,  // level 3
+    2000,  // level 4
+    3000,  // level 5
+    4200,  // level 6
+    5600,  // level 7
+    7200,  // level 8
+    9000,  // level 9
+    11000, // level 10
 ];
 
 /// Compute the level for a given cumulative XP total.
@@ -75,7 +75,7 @@ pub fn coins_for_level(new_level: i64) -> i64 {
 /// Pack granted at milestone levels (5, 10, 15, 20, …).
 pub fn pack_for_level(new_level: i64) -> Option<&'static str> {
     match new_level {
-        5  => Some("bronze_pack"),
+        5 => Some("bronze_pack"),
         10 => Some("silver_pack"),
         15 => Some("gold_pack"),
         20 => Some("rare_gold_pack"),

src/routes/achievements.rs

@@ -8,12 +8,19 @@ use crate::{
     services::{achievement as ach_svc, club as club_svc, profile as profile_svc},
 };
 
-pub async fn get_achievements(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_achievements(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
-    let _ = ach_svc::check_and_unlock(&state.pool, &state.achievement_defs, &profile.id, &club.id).await;
+    let _ = ach_svc::check_and_unlock(&state.pool, &state.achievement_defs, &profile.id, &club.id)
+        .await;
     let achievements = ach_svc::list_with_status(&state.pool, &state.achievement_defs).await?;
-    let earned = achievements.iter().filter(|a| a["unlocked"].as_bool().unwrap_or(false)).count();
+    let earned = achievements
+        .iter()
+        .filter(|a| a["unlocked"].as_bool().unwrap_or(false))
+        .count();
     Ok(Json(json!({
         "achievements": achievements,
         "earned": earned,

src/routes/auth.rs

@@ -34,7 +34,10 @@ pub async fn post_auth_local(
 
 /// GET /auth/status — lightweight check: does a profile exist?
 /// Returns 200 `{ "has_profile": true/false }` without erroring.
-pub async fn get_auth_status(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_auth_status(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let count: i64 = sqlx::query_scalar("SELECT COUNT(*) FROM profiles WHERE game_id = ?")
         .bind(game.as_str())
         .fetch_one(&state.pool)

src/routes/cards.rs

@@ -11,8 +11,7 @@ use crate::{
     error::{AppError, AppResult},
     models::card::OwnedCard,
     services::{
-        club as club_svc,
-        economy as economy_svc,
+        club as club_svc, economy as economy_svc,
         inventory::{self, OwnedItemQuery, OwnedItemView},
         profile as profile_svc,
     },
@@ -20,11 +19,17 @@ use crate::{
 
 /// Quick-sell value for a card based on overall rating.
 fn quick_sell_coins(overall: u8) -> i64 {
-    if overall >= 85 { 1500 }
-    else if overall >= 80 { 900 }
-    else if overall >= 75 { 600 }
-    else if overall >= 65 { 300 }
-    else { 150 }
+    if overall >= 85 {
+        1500
+    } else if overall >= 80 {
+        900
+    } else if overall >= 75 {
+        600
+    } else if overall >= 65 {
+        300
+    } else {
+        150
+    }
 }
 
 #[derive(Debug, Deserialize)]
@@ -96,7 +101,9 @@ pub async fn get_cards(
         cards.truncate(limit);
     }
 
-    Ok(Json(json!({ "cards": cards, "total": total, "returned": cards.len() })))
+    Ok(Json(
+        json!({ "cards": cards, "total": total, "returned": cards.len() }),
+    ))
 }
 
 pub async fn get_collection(
@@ -119,8 +126,7 @@ pub async fn get_collection(
         .filter_map(|o| {
             state.card_db.get(&o.card_id).map(|def| {
                 let effective_overall = def.overall as i64 + o.training_bonus;
-                let effective_position =
-                    o.position_override.as_deref().unwrap_or(&def.position);
+                let effective_position = o.position_override.as_deref().unwrap_or(&def.position);
                 let body = json!({
                     "owned_card_id": o.id,
                     "is_loan": o.is_loan,
@@ -178,10 +184,9 @@ pub async fn delete_owned_card(
     .await?
     .ok_or_else(|| AppError::NotFound(format!("owned card '{owned_card_id}' not found")))?;
 
-    let card = state
-        .card_db
-        .get(&owned.card_id)
-        .ok_or_else(|| AppError::NotFound(format!("card definition '{}' missing", owned.card_id)))?;
+    let card = state.card_db.get(&owned.card_id).ok_or_else(|| {
+        AppError::NotFound(format!("card definition '{}' missing", owned.card_id))
+    })?;
 
     let coins = quick_sell_coins(card.overall);
 

src/routes/club.rs

@@ -3,7 +3,9 @@ use crate::{
     app::AppState,
     error::AppResult,
     models::club::Club,
-    services::{checkin as checkin_svc, club as club_svc, profile as profile_svc, statistics as stats_svc},
+    services::{
+        checkin as checkin_svc, club as club_svc, profile as profile_svc, statistics as stats_svc,
+    },
 };
 use axum::{extract::State, Json};
 use serde::Deserialize;
@@ -38,7 +40,10 @@ pub async fn put_club(
     Ok(Json(json!({ "club": updated })))
 }
 
-pub async fn get_checkin_status(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_checkin_status(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let status = checkin_svc::get_status(&state.pool, &profile.id).await?;
     Ok(Json(json!({
@@ -67,13 +72,12 @@ pub async fn get_milestones(State(state): State<AppState>, game: GameId) -> AppR
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
     let stats = stats_svc::get_or_create(&state.pool, &profile.id).await?;
 
-    let seasons_completed: i64 = sqlx::query_scalar(
-        "SELECT COUNT(*) FROM season_history WHERE profile_id = ?",
-    )
-    .bind(&profile.id)
-    .fetch_one(&state.pool)
-    .await
-    .unwrap_or(0);
+    let seasons_completed: i64 =
+        sqlx::query_scalar("SELECT COUNT(*) FROM season_history WHERE profile_id = ?")
+            .bind(&profile.id)
+            .fetch_one(&state.pool)
+            .await
+            .unwrap_or(0);
 
     let highest_division: i64 = sqlx::query_scalar(
         "SELECT COALESCE(MIN(new_division), 10) FROM season_history WHERE profile_id = ?",
@@ -83,29 +87,25 @@ pub async fn get_milestones(State(state): State<AppState>, game: GameId) -> AppR
     .await
     .unwrap_or(10);
 
-    let cards_owned: i64 = sqlx::query_scalar(
-        "SELECT COUNT(*) FROM owned_cards WHERE club_id = ?",
-    )
-    .bind(&club.id)
-    .fetch_one(&state.pool)
-    .await
-    .unwrap_or(0);
+    let cards_owned: i64 = sqlx::query_scalar("SELECT COUNT(*) FROM owned_cards WHERE club_id = ?")
+        .bind(&club.id)
+        .fetch_one(&state.pool)
+        .await
+        .unwrap_or(0);
 
-    let sbcs_completed: i64 = sqlx::query_scalar(
-        "SELECT COUNT(*) FROM sbc_submissions WHERE club_id = ? AND passed = 1",
-    )
-    .bind(&club.id)
-    .fetch_one(&state.pool)
-    .await
-    .unwrap_or(0);
+    let sbcs_completed: i64 =
+        sqlx::query_scalar("SELECT COUNT(*) FROM sbc_submissions WHERE club_id = ? AND passed = 1")
+            .bind(&club.id)
+            .fetch_one(&state.pool)
+            .await
+            .unwrap_or(0);
 
-    let total_checkins: i64 = sqlx::query_scalar(
-        "SELECT COUNT(*) FROM daily_checkins WHERE profile_id = ?",
-    )
-    .bind(&profile.id)
-    .fetch_one(&state.pool)
-    .await
-    .unwrap_or(0);
+    let total_checkins: i64 =
+        sqlx::query_scalar("SELECT COUNT(*) FROM daily_checkins WHERE profile_id = ?")
+            .bind(&profile.id)
+            .fetch_one(&state.pool)
+            .await
+            .unwrap_or(0);
 
     Ok(Json(json!({
         "total_wins": stats.matches_won,

src/routes/division.rs

@@ -37,13 +37,19 @@ pub async fn get_division(State(state): State<AppState>, game: GameId) -> AppRes
     })))
 }
 
-pub async fn get_division_history(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_division_history(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let history = season_svc::get_history(&state.pool, &profile.id).await?;
     Ok(Json(json!({ "history": history, "total": history.len() })))
 }
 
-pub async fn get_division_leaderboard(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_division_leaderboard(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
     let season = season_svc::get_or_create(&state.pool, &profile.id).await?;
@@ -53,11 +59,26 @@ pub async fn get_division_leaderboard(State(state): State<AppState>, game: GameI
     let mut rng = rand::rngs::SmallRng::seed_from_u64(seed);
 
     const NPC_NAMES: &[&str] = &[
-        "Riverside FC", "City Athletic", "County United", "Valley Rangers",
-        "Harbor Town FC", "Mountside City", "Lakewood Athletic", "Eastbrook United",
-        "Westfield Rovers", "Northgate FC", "Southport Athletic", "Ironbridge City",
-        "Milldale United", "Hillcrest Rangers", "Bayside FC", "Thornfield Athletic",
-        "Greenhill United", "Coldwater City", "Redbury Rangers", "Ashdown FC",
+        "Riverside FC",
+        "City Athletic",
+        "County United",
+        "Valley Rangers",
+        "Harbor Town FC",
+        "Mountside City",
+        "Lakewood Athletic",
+        "Eastbrook United",
+        "Westfield Rovers",
+        "Northgate FC",
+        "Southport Athletic",
+        "Ironbridge City",
+        "Milldale United",
+        "Hillcrest Rangers",
+        "Bayside FC",
+        "Thornfield Athletic",
+        "Greenhill United",
+        "Coldwater City",
+        "Redbury Rangers",
+        "Ashdown FC",
     ];
 
     // Pick 9 NPC names without repetition using the seeded RNG
@@ -75,10 +96,13 @@ pub async fn get_division_leaderboard(State(state): State<AppState>, game: GameI
             // Quality bias: index 0-2 = stronger, 6-8 = weaker
             let quality: f64 = 1.0 - (idx as f64 / 8.0); // 1.0 → 0.0
             let expected_win_rate = 0.2 + quality * 0.6; // 0.2–0.8
-            let wins  = (npc_matches as f64 * expected_win_rate * (0.8 + rng.gen::<f64>() * 0.4)) as i64;
-            let losses = (npc_matches as f64 * (1.0 - expected_win_rate) * (0.8 + rng.gen::<f64>() * 0.4)) as i64;
-            let draws  = (npc_matches - wins - losses).max(0);
-            let pts    = wins * 3 + draws;
+            let wins =
+                (npc_matches as f64 * expected_win_rate * (0.8 + rng.gen::<f64>() * 0.4)) as i64;
+            let losses = (npc_matches as f64
+                * (1.0 - expected_win_rate)
+                * (0.8 + rng.gen::<f64>() * 0.4)) as i64;
+            let draws = (npc_matches - wins - losses).max(0);
+            let pts = wins * 3 + draws;
             json!({
                 "club_name": name,
                 "wins": wins,

src/routes/draft.rs

@@ -45,7 +45,8 @@ pub async fn post_draft_start(
 ) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let difficulty = query.difficulty.as_deref().unwrap_or("professional");
-    let session = draft_svc::start_draft(&state.pool, &state.card_db, &profile.id, difficulty).await?;
+    let session =
+        draft_svc::start_draft(&state.pool, &state.card_db, &profile.id, difficulty).await?;
     Ok(Json(session))
 }
 
@@ -56,7 +57,8 @@ pub async fn get_draft_session(
     Path(session_id): Path<String>,
 ) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
-    let session = draft_svc::get_draft(&state.pool, &state.card_db, &profile.id, &session_id).await?;
+    let session =
+        draft_svc::get_draft(&state.pool, &state.card_db, &profile.id, &session_id).await?;
     Ok(Json(session))
 }
 

src/routes/fut_champs.rs

@@ -9,7 +9,9 @@ use serde_json::{json, Value};
 use crate::{
     app::AppState,
     error::AppResult,
-    services::{club as club_svc, fut_champs as champs_svc, profile as profile_svc, season as season_svc},
+    services::{
+        club as club_svc, fut_champs as champs_svc, profile as profile_svc, season as season_svc,
+    },
 };
 
 /// GET /fut-champs — current active session, or null if none.
@@ -24,7 +26,10 @@ pub async fn get_fut_champs(State(state): State<AppState>, game: GameId) -> AppR
 }
 
 /// POST /fut-champs/start — open a new FUT Champions week.
-pub async fn post_start_fut_champs(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn post_start_fut_champs(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let session = champs_svc::start_session(&state.pool, &profile.id).await?;
 
@@ -96,7 +101,10 @@ pub async fn post_claim_champs_rewards(
 }
 
 /// GET /fut-champs/history — past sessions, newest first.
-pub async fn get_champs_history(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_champs_history(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let history = champs_svc::get_history(&state.pool, &profile.id).await?;
 
@@ -107,20 +115,19 @@ pub async fn get_champs_history(State(state): State<AppState>, game: GameId) ->
 }
 
 /// POST /rivals/claim-weekly — claim weekly Division Rivals reward.
-pub async fn post_claim_rivals_reward(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn post_claim_rivals_reward(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
 
     // Ensure a season row exists
     season_svc::get_or_create(&state.pool, &profile.id).await?;
 
-    let result = champs_svc::claim_rivals_reward(
-        &state.pool,
-        &profile.id,
-        &club.id,
-        &state.pack_defs,
-    )
-    .await?;
+    let result =
+        champs_svc::claim_rivals_reward(&state.pool, &profile.id, &club.id, &state.pack_defs)
+            .await?;
 
     Ok(Json(result))
 }

src/routes/market.rs

@@ -13,14 +13,16 @@ use crate::{
     services::{club as club_svc, market as market_svc, profile as profile_svc},
 };
 
-pub async fn get_trade_history(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_trade_history(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
     let trades = market_svc::get_trade_history(&state.pool, &club.id).await?;
     Ok(Json(json!({ "trades": trades, "total": trades.len() })))
 }
 
-
 #[derive(Deserialize)]
 pub struct MarketQuery {
     pub min_overall: Option<u8>,
@@ -86,11 +88,17 @@ pub async fn post_market_refresh(State(state): State<AppState>) -> AppResult<Jso
 }
 
 /// Return all active market listings posted by the current player's club.
-pub async fn get_my_listings(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_my_listings(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
-    let listings = market_svc::get_listings_by_seller(&state.pool, &state.card_db, &club.id).await?;
-    Ok(Json(json!({ "listings": listings, "total": listings.len() })))
+    let listings =
+        market_svc::get_listings_by_seller(&state.pool, &state.card_db, &club.id).await?;
+    Ok(Json(
+        json!({ "listings": listings, "total": listings.len() }),
+    ))
 }
 
 /// Cancel a player-posted listing and return the card to the collection.

src/routes/matches.rs

@@ -71,9 +71,15 @@ pub async fn post_match_result(
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
 
-    let result =
-        match_service::process_match(&state.pool, &profile.id, &club.id, &req, &state.obj_defs, &state.achievement_defs)
-            .await?;
+    let result = match_service::process_match(
+        &state.pool,
+        &profile.id,
+        &club.id,
+        &req,
+        &state.obj_defs,
+        &state.achievement_defs,
+    )
+    .await?;
 
     Ok(Json(result))
 }

src/routes/mod.rs

@@ -5,8 +5,8 @@ pub mod club;
 pub mod division;
 pub mod draft;
 pub mod economy;
-pub mod fut_champs;
 pub mod events;
+pub mod fut_champs;
 pub mod health;
 pub mod market;
 pub mod matches;

src/routes/notifications.rs

@@ -8,7 +8,9 @@ use serde_json::{json, Value};
 use crate::{
     app::AppState,
     error::{AppError, AppResult},
-    services::{club as club_svc, notification as notif_svc, objective as obj_svc, profile as profile_svc},
+    services::{
+        club as club_svc, notification as notif_svc, objective as obj_svc, profile as profile_svc,
+    },
 };
 
 /// GET /notifications
@@ -17,7 +19,10 @@ use crate::{
 /// notifications (unclaimed objectives, expiring loans, season ending soon).
 /// Persistent notifications carry an `id` and `is_read` flag; dynamic ones
 /// have `id: null` and are always considered unread.
-pub async fn get_notifications(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_notifications(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
 
@@ -93,14 +98,16 @@ pub async fn get_notifications(State(state): State<AppState>, game: GameId) -> A
     // Use "type" key for compatibility with dashboard and existing tests.
     let all: Vec<Value> = persistent
         .iter()
-        .map(|n| json!({
-            "id": n.id,
-            "type": n.kind,
-            "title": n.title,
-            "body": n.body,
-            "is_read": n.is_read,
-            "created_at": n.created_at,
-        }))
+        .map(|n| {
+            json!({
+                "id": n.id,
+                "type": n.kind,
+                "title": n.title,
+                "body": n.body,
+                "is_read": n.is_read,
+                "created_at": n.created_at,
+            })
+        })
         .chain(dynamic.iter().cloned())
         .collect();
 
@@ -125,9 +132,7 @@ pub async fn mark_notification_read(
 }
 
 /// POST /notifications/read-all
-pub async fn mark_all_notifications_read(
-    State(state): State<AppState>,
-) -> AppResult<Json<Value>> {
+pub async fn mark_all_notifications_read(State(state): State<AppState>) -> AppResult<Json<Value>> {
     let count = notif_svc::mark_all_read(&state.pool).await?;
     Ok(Json(json!({ "marked_read": count })))
 }

src/routes/packs.rs

@@ -79,7 +79,10 @@ pub async fn get_packs(State(state): State<AppState>, game: GameId) -> AppResult
 }
 
 /// Return recently opened packs with the card IDs they contained.
-pub async fn get_pack_history(State(state): State<AppState>, game: GameId) -> AppResult<Json<Value>> {
+pub async fn get_pack_history(
+    State(state): State<AppState>,
+    game: GameId,
+) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
 
@@ -143,8 +146,12 @@ pub async fn post_open_pack(
     objective::increment_metric(&state.pool, &profile.id, &state.obj_defs, "packsopened", 1)
         .await?;
     let _ = crate::services::achievement::check_and_unlock(
-        &state.pool, &state.achievement_defs, &profile.id, &club.id,
-    ).await;
+        &state.pool,
+        &state.achievement_defs,
+        &profile.id,
+        &club.id,
+    )
+    .await;
 
     Ok(Json(result))
 }

src/routes/upgrades.rs

@@ -72,13 +72,8 @@ pub async fn post_change_position(
     let profile = profile_svc::get_active_profile(&state.pool, game.as_str()).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
 
-    let updated = upgrade_svc::change_position(
-        &state.pool,
-        &club.id,
-        &owned_card_id,
-        &req.position,
-    )
-    .await?;
+    let updated =
+        upgrade_svc::change_position(&state.pool, &club.id, &owned_card_id, &req.position).await?;
 
     let card_def = state.card_db.get(&updated.card_id);
 

src/services/achievement.rs

@@ -29,79 +29,83 @@ pub fn load_achievement_definitions(data_dir: &str) -> anyhow::Result<Vec<Achiev
 }
 
 /// Query the current value for the given trigger metric.
-async fn metric_value(pool: &Pool, profile_id: &str, club_id: &str, trigger: &str) -> AppResult<i64> {
-    let v: i64 = match trigger {
-        "matches_played" => sqlx::query_scalar(
-            "SELECT matches_played FROM statistics WHERE profile_id = ?",
-        )
-        .bind(profile_id)
-        .fetch_optional(pool)
-        .await?
-        .unwrap_or(0),
+async fn metric_value(
+    pool: &Pool,
+    profile_id: &str,
+    club_id: &str,
+    trigger: &str,
+) -> AppResult<i64> {
+    let v: i64 =
+        match trigger {
+            "matches_played" => {
+                sqlx::query_scalar("SELECT matches_played FROM statistics WHERE profile_id = ?")
+                    .bind(profile_id)
+                    .fetch_optional(pool)
+                    .await?
+                    .unwrap_or(0)
+            }
 
-        "matches_won" => sqlx::query_scalar(
-            "SELECT matches_won FROM statistics WHERE profile_id = ?",
-        )
-        .bind(profile_id)
-        .fetch_optional(pool)
-        .await?
-        .unwrap_or(0),
+            "matches_won" => {
+                sqlx::query_scalar("SELECT matches_won FROM statistics WHERE profile_id = ?")
+                    .bind(profile_id)
+                    .fetch_optional(pool)
+                    .await?
+                    .unwrap_or(0)
+            }
 
-        "goals_scored" => sqlx::query_scalar(
-            "SELECT goals_scored FROM statistics WHERE profile_id = ?",
-        )
-        .bind(profile_id)
-        .fetch_optional(pool)
-        .await?
-        .unwrap_or(0),
+            "goals_scored" => {
+                sqlx::query_scalar("SELECT goals_scored FROM statistics WHERE profile_id = ?")
+                    .bind(profile_id)
+                    .fetch_optional(pool)
+                    .await?
+                    .unwrap_or(0)
+            }
 
-        "packs_opened" => sqlx::query_scalar(
-            "SELECT packs_opened FROM statistics WHERE profile_id = ?",
-        )
-        .bind(profile_id)
-        .fetch_optional(pool)
-        .await?
-        .unwrap_or(0),
+            "packs_opened" => {
+                sqlx::query_scalar("SELECT packs_opened FROM statistics WHERE profile_id = ?")
+                    .bind(profile_id)
+                    .fetch_optional(pool)
+                    .await?
+                    .unwrap_or(0)
+            }
 
-        "sbcs_completed" => sqlx::query_scalar(
-            "SELECT sbcs_completed FROM statistics WHERE profile_id = ?",
-        )
-        .bind(profile_id)
-        .fetch_optional(pool)
-        .await?
-        .unwrap_or(0),
+            "sbcs_completed" => {
+                sqlx::query_scalar("SELECT sbcs_completed FROM statistics WHERE profile_id = ?")
+                    .bind(profile_id)
+                    .fetch_optional(pool)
+                    .await?
+                    .unwrap_or(0)
+            }
 
-        "cards_owned" => sqlx::query_scalar(
-            "SELECT COUNT(*) FROM owned_cards WHERE club_id = ?",
-        )
-        .bind(club_id)
-        .fetch_one(pool)
-        .await?,
+            "cards_owned" => {
+                sqlx::query_scalar("SELECT COUNT(*) FROM owned_cards WHERE club_id = ?")
+                    .bind(club_id)
+                    .fetch_one(pool)
+                    .await?
+            }
 
-        "level" => sqlx::query_scalar(
-            "SELECT level FROM profiles WHERE id = ?",
-        )
-        .bind(profile_id)
-        .fetch_optional(pool)
-        .await?
-        .unwrap_or(1),
+            "level" => sqlx::query_scalar("SELECT level FROM profiles WHERE id = ?")
+                .bind(profile_id)
+                .fetch_optional(pool)
+                .await?
+                .unwrap_or(1),
 
-        "objectives_completed" => sqlx::query_scalar(
-            "SELECT COUNT(*) FROM objective_progress WHERE profile_id = ? AND completed = 1",
-        )
-        .bind(profile_id)
-        .fetch_one(pool)
-        .await?,
+            "objectives_completed" => sqlx::query_scalar(
+                "SELECT COUNT(*) FROM objective_progress WHERE profile_id = ? AND completed = 1",
+            )
+            .bind(profile_id)
+            .fetch_one(pool)
+            .await?,
 
-        "drafts_completed" => sqlx::query_scalar(
-            "SELECT COUNT(*) FROM draft_sessions WHERE profile_id = ? AND status = 'completed'",
-        )
-        .bind(profile_id)
-        .fetch_one(pool)
-        .await?,
+            "drafts_completed" => sqlx::query_scalar(
+                "SELECT COUNT(*) FROM draft_sessions WHERE profile_id = ? AND status = 'completed'",
+            )
+            .bind(profile_id)
+            .fetch_one(pool)
+            .await?,
 
-        _ => 0,
-    };
+            _ => 0,
+        };
     Ok(v)
 }
 
@@ -165,11 +169,14 @@ pub async fn check_and_unlock(
                 club_svc::add_coins(pool, club_id, def.reward_coins).await?;
             }
 
-            let body = format!(
-                "{} Reward: {} coins.",
-                def.description, def.reward_coins
-            );
-            let _ = notification::create(pool, "achievement", &format!("Achievement: {}", def.title), &body).await;
+            let body = format!("{} Reward: {} coins.", def.description, def.reward_coins);
+            let _ = notification::create(
+                pool,
+                "achievement",
+                &format!("Achievement: {}", def.title),
+                &body,
+            )
+            .await;
 
             newly_unlocked.push(def.clone());
         }

src/services/checkin.rs

@@ -1,4 +1,8 @@
-use crate::{db::Pool, error::AppResult, services::{club, pack}};
+use crate::{
+    db::Pool,
+    error::AppResult,
+    services::{club, pack},
+};
 use uuid::Uuid;
 
 const STREAK_COINS: [i64; 7] = [500, 650, 800, 1000, 1200, 1500, 2000];
@@ -8,7 +12,7 @@ const STREAK_7_PACK: &str = "silver_pack";
 #[derive(Debug, serde::Serialize)]
 pub struct CheckinStatus {
     pub available: bool,
-    pub streak_day: i64,   // current streak (1–7 cycle, 0 if never checked in)
+    pub streak_day: i64, // current streak (1–7 cycle, 0 if never checked in)
     pub next_reward_coins: i64,
     pub next_reward_pack: Option<&'static str>,
     pub last_checked_in: Option<String>,
@@ -56,11 +60,7 @@ pub async fn get_status(pool: &Pool, profile_id: &str) -> AppResult<CheckinStatu
     }
 }
 
-pub async fn claim(
-    pool: &Pool,
-    profile_id: &str,
-    club_id: &str,
-) -> AppResult<CheckinResult> {
+pub async fn claim(pool: &Pool, profile_id: &str, club_id: &str) -> AppResult<CheckinResult> {
     let row: Option<(i64, String)> = sqlx::query_as(
         "SELECT streak_day, checked_in_at FROM daily_checkins \
          WHERE profile_id = ? ORDER BY checked_in_at DESC LIMIT 1",
@@ -82,7 +82,10 @@ pub async fn claim(
         }
     }
 
-    let last_streak = row.as_ref().map(|(s, last_at)| compute_next_streak(*s, last_at)).unwrap_or(1);
+    let last_streak = row
+        .as_ref()
+        .map(|(s, last_at)| compute_next_streak(*s, last_at))
+        .unwrap_or(1);
     let idx = (last_streak - 1).rem_euclid(7) as usize;
     let coins = STREAK_COINS[idx];
     let pack_def = if idx == 6 { Some(STREAK_7_PACK) } else { None };

src/services/draft.rs

@@ -184,24 +184,32 @@ pub async fn pick_card(
     let (new_candidates, new_status, reward_coins, reward_pack_id, squad_rating, completed_at) =
         if all_filled {
             let (coins, pack, avg) = compute_reward(card_db, &picks);
-            (None, "completed".to_string(), coins, pack, avg, Some(chrono::Utc::now().to_rfc3339()))
+            (
+                None,
+                "completed".to_string(),
+                coins,
+                pack,
+                avg,
+                Some(chrono::Utc::now().to_rfc3339()),
+            )
         } else {
             let min_overall = difficulty_min_overall(&session.difficulty);
             let next_pos = &pick_order[next_index];
             let next_candidates =
                 pick_candidates(card_db, next_pos, min_overall, CANDIDATES_PER_SLOT);
             {
-            let candidates_json = serde_json::to_string(&next_candidates)
-                .map_err(|e| AppError::Internal(anyhow::anyhow!("serialization failed: {e}")))?;
-            (
-                Some(candidates_json),
-                "active".to_string(),
-                0,
-                None,
-                0,
-                None,
-            )
-        }
+                let candidates_json = serde_json::to_string(&next_candidates).map_err(|e| {
+                    AppError::Internal(anyhow::anyhow!("serialization failed: {e}"))
+                })?;
+                (
+                    Some(candidates_json),
+                    "active".to_string(),
+                    0,
+                    None,
+                    0,
+                    None,
+                )
+            }
         };
 
     let picks_json = serde_json::to_string(&picks)
@@ -294,8 +302,7 @@ async fn fetch_session(pool: &Pool, profile_id: &str, session_id: &str) -> AppRe
 }
 
 fn render_session(session: &DraftSession, card_db: &CardDb) -> serde_json::Value {
-    let pick_order: Vec<String> =
-        serde_json::from_str(&session.pick_order).unwrap_or_default();
+    let pick_order: Vec<String> = serde_json::from_str(&session.pick_order).unwrap_or_default();
     let picks: Vec<String> = serde_json::from_str(&session.picks).unwrap_or_default();
     let candidates: Vec<String> = session
         .current_candidates

src/services/fut_champs.rs

@@ -26,7 +26,11 @@ pub async fn get_active_session(
     .map_err(Into::into)
 }
 
-pub async fn get_session(pool: &Pool, session_id: &str, profile_id: &str) -> AppResult<FutChampsSession> {
+pub async fn get_session(
+    pool: &Pool,
+    session_id: &str,
+    profile_id: &str,
+) -> AppResult<FutChampsSession> {
     sqlx::query_as::<_, FutChampsSession>(&format!(
         "{SESSION_SELECT} WHERE id = ? AND profile_id = ?"
     ))

src/services/market.rs

@@ -149,7 +149,9 @@ pub async fn buy_listing(
         .await?
         .rows_affected();
     if claimed == 0 {
-        return Err(AppError::NotFound("listing not found or already sold".into()));
+        return Err(AppError::NotFound(
+            "listing not found or already sold".into(),
+        ));
     }
     if let Err(e) = club::spend_coins(pool, club_id, listing.price).await {
         let _ = sqlx::query("UPDATE market_listings SET sold = 0 WHERE id = ?")
@@ -308,9 +310,10 @@ pub async fn get_listings_by_seller(
     let with_cards = listings
         .into_iter()
         .filter_map(|l| {
-            card_db
-                .get(&l.card_id)
-                .map(|card| MarketListingWithCard { listing: l, card: card.clone() })
+            card_db.get(&l.card_id).map(|card| MarketListingWithCard {
+                listing: l,
+                card: card.clone(),
+            })
         })
         .collect();
     Ok(with_cards)
@@ -326,7 +329,9 @@ pub async fn cancel_listing(pool: &Pool, club_id: &str, listing_id: &str) -> App
     .bind(club_id)
     .fetch_optional(pool)
     .await?
-    .ok_or_else(|| AppError::NotFound(format!("listing '{listing_id}' not found or already sold")))?;
+    .ok_or_else(|| {
+        AppError::NotFound(format!("listing '{listing_id}' not found or already sold"))
+    })?;
 
     sqlx::query("DELETE FROM market_listings WHERE id = ?")
         .bind(listing_id)

src/services/match_service.rs

@@ -7,13 +7,14 @@ use crate::{
         match_result::{Match, MatchRewardResult, SubmitMatchRequest},
         objective::ObjectiveDefinition,
     },
-    services::{achievement, card_db::CardDb, club, notification, objective, profile, season as season_svc, statistics},
+    services::{
+        achievement, card_db::CardDb, club, notification, objective, profile, season as season_svc,
+        statistics,
+    },
 };
 use rand::{seq::SliceRandom, Rng};
 
-const FORMATIONS: &[&str] = &[
-    "4-3-3", "4-4-2", "4-2-3-1", "4-1-2-1-2", "3-5-2", "5-3-2",
-];
+const FORMATIONS: &[&str] = &["4-3-3", "4-4-2", "4-2-3-1", "4-1-2-1-2", "3-5-2", "5-3-2"];
 
 /// Generate a random AI opponent squad for Squad Battles.
 ///
@@ -27,23 +28,53 @@ pub fn generate_opponent(card_db: &CardDb, difficulty: &str) -> serde_json::Valu
     let (min_overall, names): (u8, &[&str]) = match difficulty {
         "professional" => (
             70,
-            &["Athletic CF", "City Wanderers", "The Rovers", "United Select", "Blue Stars FC"],
+            &[
+                "Athletic CF",
+                "City Wanderers",
+                "The Rovers",
+                "United Select",
+                "Blue Stars FC",
+            ],
         ),
         "world_class" => (
             78,
-            &["Elite Stars FC", "Champions Select", "Premier XI", "Galaxy United", "Titan FC"],
+            &[
+                "Elite Stars FC",
+                "Champions Select",
+                "Premier XI",
+                "Galaxy United",
+                "Titan FC",
+            ],
         ),
         "legendary" => (
             85,
-            &["Legends United", "Ultimate XI", "Gold Standard FC", "The Icons", "Heritage FC"],
+            &[
+                "Legends United",
+                "Ultimate XI",
+                "Gold Standard FC",
+                "The Icons",
+                "Heritage FC",
+            ],
         ),
         "ultimate" => (
             90,
-            &["Apex XI", "Pantheon FC", "Gods of FUT", "Invincibles Select", "Eternal XI"],
+            &[
+                "Apex XI",
+                "Pantheon FC",
+                "Gods of FUT",
+                "Invincibles Select",
+                "Eternal XI",
+            ],
         ),
         _ => (
             55,
-            &["Amateur Town FC", "Sunday League XI", "Park FC", "Village Stars", "Reserve XI"],
+            &[
+                "Amateur Town FC",
+                "Sunday League XI",
+                "Park FC",
+                "Village Stars",
+                "Reserve XI",
+            ],
         ),
     };
 
@@ -59,7 +90,11 @@ pub fn generate_opponent(card_db: &CardDb, difficulty: &str) -> serde_json::Valu
 
     let mut indices: Vec<usize> = (0..pool.len()).collect();
     indices.shuffle(&mut rng);
-    let cards: Vec<_> = indices.into_iter().take(11).map(|i| pool[i].clone()).collect();
+    let cards: Vec<_> = indices
+        .into_iter()
+        .take(11)
+        .map(|i| pool[i].clone())
+        .collect();
 
     let squad_rating = if cards.is_empty() {
         0
@@ -147,11 +182,18 @@ pub async fn process_match(
 
     for ev in &level_ups {
         let body = if let Some(ref pack) = ev.pack_granted {
-            format!("You reached level {}! Reward: {} coins + {pack}.", ev.new_level, ev.coins_granted)
+            format!(
+                "You reached level {}! Reward: {} coins + {pack}.",
+                ev.new_level, ev.coins_granted
+            )
         } else {
-            format!("You reached level {}! Reward: {} coins.", ev.new_level, ev.coins_granted)
+            format!(
+                "You reached level {}! Reward: {} coins.",
+                ev.new_level, ev.coins_granted
+            )
         };
-        let _ = notification::create(pool, "level_up", &format!("Level {}!", ev.new_level), &body).await;
+        let _ = notification::create(pool, "level_up", &format!("Level {}!", ev.new_level), &body)
+            .await;
     }
 
     statistics::record_match(
@@ -195,15 +237,20 @@ pub async fn process_match(
             .find(|d| &d.id == obj_id)
             .map(|d| d.title.as_str())
             .unwrap_or(obj_id.as_str());
-        let body = format!("\"{}\" is now complete. Claim your reward in Objectives.", display_name);
-        let _ = notification::create(pool, "objective_complete", "Objective complete!", &body).await;
+        let body = format!(
+            "\"{}\" is now complete. Claim your reward in Objectives.",
+            display_name
+        );
+        let _ =
+            notification::create(pool, "objective_complete", "Objective complete!", &body).await;
     }
 
     // Decrement loan matches remaining for squad starters; collect expired loan IDs.
     let expired_loans = process_loan_expiry(pool, club_id, &req.squad_id).await?;
 
     for owned_id in &expired_loans {
-        let body = format!("Loan card (id: {owned_id}) has expired and been removed from your club.");
+        let body =
+            format!("Loan card (id: {owned_id}) has expired and been removed from your club.");
         let _ = notification::create(pool, "loan_expired", "Loan card expired", &body).await;
     }
 
@@ -218,14 +265,21 @@ pub async fn process_match(
             SeasonResult::Relegated => "Relegated",
             SeasonResult::Maintained => "Maintained",
         };
-        let body = format!("{direction} — now in Division {}. Rewards: {} coins{}.", se.new_division, se.coins_awarded, se.pack_awarded.as_deref().map(|p| format!(" + {p}")).unwrap_or_default());
+        let body = format!(
+            "{direction} — now in Division {}. Rewards: {} coins{}.",
+            se.new_division,
+            se.coins_awarded,
+            se.pack_awarded
+                .as_deref()
+                .map(|p| format!(" + {p}"))
+                .unwrap_or_default()
+        );
         let _ = notification::create(pool, "season_end", "Season complete!", &body).await;
     }
 
-    let achievements_unlocked =
-        achievement::check_and_unlock(pool, ach_defs, profile_id, club_id)
-            .await
-            .unwrap_or_default();
+    let achievements_unlocked = achievement::check_and_unlock(pool, ach_defs, profile_id, club_id)
+        .await
+        .unwrap_or_default();
 
     Ok(MatchRewardResult {
         match_record,

src/services/objective.rs

@@ -67,10 +67,7 @@ pub async fn increment_metric(
 ) -> AppResult<Vec<String>> {
     let mut completed_ids = Vec::new();
 
-    for def in defs
-        .iter()
-        .filter(|d| d.metric.as_str() == metric)
-    {
+    for def in defs.iter().filter(|d| d.metric.as_str() == metric) {
         let existing = sqlx::query_as::<_, ObjectiveProgress>(
             "SELECT id, profile_id, objective_id, current, completed, claimed, updated_at FROM objective_progress WHERE profile_id = ? AND objective_id = ?"
         )

src/services/pack.rs

@@ -73,14 +73,13 @@ pub async fn open_pack(
 
     // Atomically claim the pack before minting any cards: only one concurrent opener
     // flips opened 0->1, so a double-open cannot mint the reward twice (duplication).
-    let claimed = sqlx::query(
-        "UPDATE packs SET opened = 1 WHERE id = ? AND club_id = ? AND opened = 0",
-    )
-    .bind(pack_id)
-    .bind(club_id)
-    .execute(pool)
-    .await?
-    .rows_affected();
+    let claimed =
+        sqlx::query("UPDATE packs SET opened = 1 WHERE id = ? AND club_id = ? AND opened = 0")
+            .bind(pack_id)
+            .bind(club_id)
+            .execute(pool)
+            .await?
+            .rows_affected();
     if claimed == 0 {
         return Err(AppError::BadRequest("pack already opened".into()));
     }
@@ -134,8 +133,8 @@ pub async fn open_pack(
         }
     }
 
-    let card_ids_json = serde_json::to_string(&cards.iter().map(|c| &c.id).collect::<Vec<_>>())
-        .unwrap_or_default();
+    let card_ids_json =
+        serde_json::to_string(&cards.iter().map(|c| &c.id).collect::<Vec<_>>()).unwrap_or_default();
     let now = chrono::Utc::now().to_rfc3339();
 
     sqlx::query("UPDATE packs SET opened_cards = ?, opened_at = ? WHERE id = ?")

src/services/profile.rs

@@ -100,7 +100,11 @@ pub async fn add_xp_with_levelup(
         }
 
         tracing::info!(profile_id, new_level = lvl, coins, "level up");
-        events.push(LevelUpEvent { new_level: lvl, coins_granted: coins, pack_granted: pack });
+        events.push(LevelUpEvent {
+            new_level: lvl,
+            coins_granted: coins,
+            pack_granted: pack,
+        });
     }
 
     Ok(events)

src/services/season.rs

@@ -20,9 +20,11 @@ pub async fn get_or_create(pool: &Pool, profile_id: &str) -> AppResult<Season> {
     .bind(&now)
     .execute(pool)
     .await?;
-    fetch(pool, profile_id)
-        .await?
-        .ok_or_else(|| AppError::Internal(anyhow::anyhow!("season row missing immediately after insert")))
+    fetch(pool, profile_id).await?.ok_or_else(|| {
+        AppError::Internal(anyhow::anyhow!(
+            "season row missing immediately after insert"
+        ))
+    })
 }
 
 async fn fetch(pool: &Pool, profile_id: &str) -> AppResult<Option<Season>> {
@@ -68,9 +70,11 @@ pub async fn record_match(
     .execute(pool)
     .await?;
 
-    let season = fetch(pool, profile_id)
-        .await?
-        .ok_or_else(|| AppError::Internal(anyhow::anyhow!("season row missing after record_match update")))?;
+    let season = fetch(pool, profile_id).await?.ok_or_else(|| {
+        AppError::Internal(anyhow::anyhow!(
+            "season row missing after record_match update"
+        ))
+    })?;
 
     if !season.is_complete() {
         return Ok((season, None));
@@ -145,9 +149,9 @@ pub async fn record_match(
         pack_awarded: pack_id.map(String::from),
     };
 
-    let updated = fetch(pool, profile_id)
-        .await?
-        .ok_or_else(|| AppError::Internal(anyhow::anyhow!("season row missing after season rollover")))?;
+    let updated = fetch(pool, profile_id).await?.ok_or_else(|| {
+        AppError::Internal(anyhow::anyhow!("season row missing after season rollover"))
+    })?;
     Ok((updated, Some(summary)))
 }
 

src/services/upgrades.rs

@@ -16,14 +16,12 @@ pub const MAX_TRAINING_BONUS: i64 = 3;
 pub const POSITION_CHANGE_COST: i64 = 500;
 
 async fn fetch_owned(pool: &Pool, owned_card_id: &str, club_id: &str) -> AppResult<OwnedCard> {
-    sqlx::query_as::<_, OwnedCard>(&format!(
-        "{OWNED_CARD_SELECT} WHERE id = ? AND club_id = ?"
-    ))
-    .bind(owned_card_id)
-    .bind(club_id)
-    .fetch_optional(pool)
-    .await?
-    .ok_or_else(|| AppError::NotFound("owned card not found".into()))
+    sqlx::query_as::<_, OwnedCard>(&format!("{OWNED_CARD_SELECT} WHERE id = ? AND club_id = ?"))
+        .bind(owned_card_id)
+        .bind(club_id)
+        .fetch_optional(pool)
+        .await?
+        .ok_or_else(|| AppError::NotFound("owned card not found".into()))
 }
 
 /// Apply a chemistry style to an owned card.
@@ -64,8 +62,8 @@ pub async fn change_position(
     new_position: &str,
 ) -> AppResult<OwnedCard> {
     let valid_positions = [
-        "GK", "RB", "LB", "CB", "RWB", "LWB", "CDM", "CM", "CAM", "RM", "LM", "RW", "LW",
-        "CF", "ST",
+        "GK", "RB", "LB", "CB", "RWB", "LWB", "CDM", "CM", "CAM", "RM", "LM", "RW", "LW", "CF",
+        "ST",
     ];
     if !valid_positions.contains(&new_position) {
         return Err(AppError::BadRequest(format!(

tests/integration_test.rs

@@ -294,7 +294,12 @@ async fn test_sbc_rejects_duplicate_cards() {
         .as_str()
         .unwrap()
         .to_string();
-    let (s, _) = json_post(&app, &format!("/packs/open/{pack_id}"), serde_json::json!({})).await;
+    let (s, _) = json_post(
+        &app,
+        &format!("/packs/open/{pack_id}"),
+        serde_json::json!({}),
+    )
+    .await;
     assert_eq!(s, StatusCode::OK);
 
     let (_, coll) = json_get(&app, "/collection").await;
@@ -312,9 +317,16 @@ async fn test_sbc_rejects_duplicate_cards() {
         }),
     )
     .await;
-    assert_eq!(s, StatusCode::BAD_REQUEST, "duplicate submission must be rejected: {result}");
+    assert_eq!(
+        s,
+        StatusCode::BAD_REQUEST,
+        "duplicate submission must be rejected: {result}"
+    );
     assert!(
-        result["error"].as_str().unwrap_or_default().contains("duplicate"),
+        result["error"]
+            .as_str()
+            .unwrap_or_default()
+            .contains("duplicate"),
         "expected a duplicate-card error, got: {result}"
     );
 }