Phase 9: division/season tracking, club customization, pack history, notifications

- GET /division returns live season stats (points, record, promotion threshold)
- PUT /club allows updating club name and manager_name
- GET /packs/history returns opened packs with full card definitions
- GET /notifications dynamically surfaces completed objectives, expiring loans, season end
- Club model gains manager_name column (migration 0006 already added it)
- Pack model gains opened_cards and opened_at; pack SELECT queries updated
- 9 new integration tests — all 45 pass, clippy clean

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/services/club.rs

@@ -5,19 +5,30 @@ use crate::{
 };
 use chrono::Utc;
 
+const CLUB_SELECT: &str =
+    "SELECT id, profile_id, name, coins, level, created_at, updated_at, manager_name \
+     FROM clubs";
+
 pub async fn get_club_by_profile(pool: &Pool, profile_id: &str) -> AppResult<Club> {
-    sqlx::query_as::<_, Club>(
-        "SELECT id, profile_id, name, coins, level, created_at, updated_at FROM clubs WHERE profile_id = ? LIMIT 1"
-    )
-    .bind(profile_id)
-    .fetch_optional(pool)
-    .await?
-    .ok_or_else(|| AppError::NotFound("club not found".into()))
+    sqlx::query_as::<_, Club>(&format!("{CLUB_SELECT} WHERE profile_id = ? LIMIT 1"))
+        .bind(profile_id)
+        .fetch_optional(pool)
+        .await?
+        .ok_or_else(|| AppError::NotFound("club not found".into()))
+}
+
+pub async fn get_club_by_id(pool: &Pool, club_id: &str) -> AppResult<Club> {
+    sqlx::query_as::<_, Club>(&format!("{CLUB_SELECT} WHERE id = ? LIMIT 1"))
+        .bind(club_id)
+        .fetch_optional(pool)
+        .await?
+        .ok_or_else(|| AppError::NotFound("club not found".into()))
 }
 
 pub async fn create_club(pool: &Pool, club: &Club) -> AppResult<()> {
     sqlx::query(
-        "INSERT INTO clubs (id, profile_id, name, coins, level, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?, ?)"
+        "INSERT INTO clubs (id, profile_id, name, coins, level, created_at, updated_at, manager_name) \
+         VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
     )
     .bind(&club.id)
     .bind(&club.profile_id)
@@ -26,11 +37,38 @@ pub async fn create_club(pool: &Pool, club: &Club) -> AppResult<()> {
     .bind(club.level)
     .bind(club.created_at)
     .bind(club.updated_at)
+    .bind(&club.manager_name)
     .execute(pool)
     .await?;
     Ok(())
 }
 
+pub async fn update_club(
+    pool: &Pool,
+    club_id: &str,
+    name: Option<&str>,
+    manager_name: Option<&str>,
+) -> AppResult<Club> {
+    let now = Utc::now();
+    if let Some(n) = name {
+        sqlx::query("UPDATE clubs SET name = ?, updated_at = ? WHERE id = ?")
+            .bind(n)
+            .bind(now)
+            .bind(club_id)
+            .execute(pool)
+            .await?;
+    }
+    if let Some(m) = manager_name {
+        sqlx::query("UPDATE clubs SET manager_name = ?, updated_at = ? WHERE id = ?")
+            .bind(m)
+            .bind(now)
+            .bind(club_id)
+            .execute(pool)
+            .await?;
+    }
+    get_club_by_id(pool, club_id).await
+}
+
 pub async fn add_coins(pool: &Pool, club_id: &str, amount: i64) -> AppResult<i64> {
     let now = Utc::now();
     sqlx::query("UPDATE clubs SET coins = coins + ?, updated_at = ? WHERE id = ?")