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/app.rs

@@ -122,6 +122,7 @@ pub async fn build(pool: Pool, cfg: Config) -> Result<Router> {
         .route("/auth/local", post(routes::auth::post_auth_local))
         .route("/profile", get(routes::profile::get_profile))
         .route("/club", get(routes::club::get_club))
+        .route("/club", put(routes::club::put_club))
         .route("/cards", get(routes::cards::get_cards))
         .route("/cards/:card_id", get(routes::cards::get_card))
         .route("/collection", get(routes::cards::get_collection))
@@ -130,6 +131,7 @@ pub async fn build(pool: Pool, cfg: Config) -> Result<Router> {
             delete(routes::cards::delete_owned_card),
         )
         .route("/packs", get(routes::packs::get_packs))
+        .route("/packs/history", get(routes::packs::get_pack_history))
         .route("/packs/buy", post(routes::packs::post_buy_pack))
         .route("/packs/open/:pack_id", post(routes::packs::post_open_pack))
         .route("/squad", get(routes::squad::get_squad))
@@ -169,6 +171,8 @@ pub async fn build(pool: Pool, cfg: Config) -> Result<Router> {
         )
         .route("/settings", get(routes::settings::get_settings))
         .route("/settings", put(routes::settings::put_settings))
+        .route("/division", get(routes::division::get_division))
+        .route("/notifications", get(routes::notifications::get_notifications))
         .route("/draft/squad", get(routes::draft::get_draft_squad))
         .route("/draft/start", post(routes::draft::post_draft_start))
         .route("/draft/sessions/:id", get(routes::draft::get_draft_session))