feat: Phase 1 — core game loop complete

New endpoints:
- GET  /cards/:card_id       single card lookup
- POST /packs/buy            purchase pack with coins
- POST /objectives/claim     claim completed objective reward
- GET  /matches              match history (limit/mode query params)
- GET  /sbc/:sbc_id          single SBC lookup

Card pool expanded:
- Bronze: 11 → 30 cards (19 nations)
- Silver: 0 → 20 cards (20 nations)
- Rare Gold: 0 → 10 cards (10 nations)

SBC pool expanded:
- Added 5 new SBCs (tri_nations, silver_to_gold, league_loyalty,
  african_stars, gold_standard)

Infrastructure:
- SQLite WAL mode enabled on pool init
- Foreign key enforcement enabled

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

src/routes/cards.rs

@@ -1,5 +1,5 @@
 use axum::{
-    extract::{Query, State},
+    extract::{Path, Query, State},
     Json,
 };
 use serde::Deserialize;
@@ -7,7 +7,7 @@ use serde_json::{json, Value};
 
 use crate::{
     app::AppState,
-    error::AppResult,
+    error::{AppError, AppResult},
     models::card::OwnedCard,
     services::{club as club_svc, profile as profile_svc},
 };
@@ -18,6 +18,17 @@ pub struct CardQuery {
     pub position: Option<String>,
 }
 
+pub async fn get_card(
+    State(state): State<AppState>,
+    Path(card_id): Path<String>,
+) -> AppResult<Json<Value>> {
+    let card = state
+        .card_db
+        .get(&card_id)
+        .ok_or_else(|| AppError::NotFound(format!("card '{card_id}' not found")))?;
+    Ok(Json(json!({ "card": card })))
+}
+
 pub async fn get_cards(
     State(state): State<AppState>,
     Query(query): Query<CardQuery>,

src/routes/matches.rs

@@ -1,12 +1,52 @@
-use axum::{extract::State, Json};
+use axum::{
+    extract::{Query, State},
+    Json,
+};
+use serde::Deserialize;
+use serde_json::{json, Value};
 
 use crate::{
     app::AppState,
     error::AppResult,
-    models::match_result::{MatchRewardResult, SubmitMatchRequest},
+    models::match_result::{Match, MatchRewardResult, SubmitMatchRequest},
     services::{club as club_svc, match_service, profile as profile_svc},
 };
 
+#[derive(Deserialize)]
+pub struct MatchHistoryQuery {
+    pub limit: Option<i64>,
+    pub mode: Option<String>,
+}
+
+pub async fn get_matches(
+    State(state): State<AppState>,
+    Query(query): Query<MatchHistoryQuery>,
+) -> AppResult<Json<Value>> {
+    let profile = profile_svc::get_active_profile(&state.pool).await?;
+    let limit = query.limit.unwrap_or(20).clamp(1, 100);
+
+    let matches = if let Some(mode) = &query.mode {
+        sqlx::query_as::<_, Match>(
+            "SELECT id, profile_id, squad_id, opponent_name, goals_for, goals_against, outcome, coins_awarded, xp_awarded, mode, played_at FROM matches WHERE profile_id = ? AND mode = ? ORDER BY played_at DESC LIMIT ?"
+        )
+        .bind(&profile.id)
+        .bind(mode)
+        .bind(limit)
+        .fetch_all(&state.pool)
+        .await?
+    } else {
+        sqlx::query_as::<_, Match>(
+            "SELECT id, profile_id, squad_id, opponent_name, goals_for, goals_against, outcome, coins_awarded, xp_awarded, mode, played_at FROM matches WHERE profile_id = ? ORDER BY played_at DESC LIMIT ?"
+        )
+        .bind(&profile.id)
+        .bind(limit)
+        .fetch_all(&state.pool)
+        .await?
+    };
+
+    Ok(Json(json!({ "matches": matches, "total": matches.len() })))
+}
+
 pub async fn post_match_result(
     State(state): State<AppState>,
     Json(req): Json<SubmitMatchRequest>,

src/routes/objectives.rs

@@ -1,10 +1,11 @@
 use axum::{extract::State, Json};
+use serde::Deserialize;
 use serde_json::{json, Value};
 
 use crate::{
     app::AppState,
     error::AppResult,
-    services::{objective as obj_svc, profile as profile_svc},
+    services::{club as club_svc, objective as obj_svc, profile as profile_svc},
 };
 
 pub async fn get_objectives(State(state): State<AppState>) -> AppResult<Json<Value>> {
@@ -13,3 +14,25 @@ pub async fn get_objectives(State(state): State<AppState>) -> AppResult<Json<Val
         obj_svc::get_objectives_with_progress(&state.pool, &profile.id, &state.obj_defs).await?;
     Ok(Json(json!({ "objectives": objectives })))
 }
+
+#[derive(Deserialize)]
+pub struct ClaimRequest {
+    pub objective_id: String,
+}
+
+pub async fn post_claim_objective(
+    State(state): State<AppState>,
+    Json(req): Json<ClaimRequest>,
+) -> AppResult<Json<Value>> {
+    let profile = profile_svc::get_active_profile(&state.pool).await?;
+    let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
+    let reward = obj_svc::claim_objective(
+        &state.pool,
+        &profile.id,
+        &club.id,
+        &state.obj_defs,
+        &req.objective_id,
+    )
+    .await?;
+    Ok(Json(json!({ "claimed": true, "reward": reward })))
+}

src/routes/packs.rs

@@ -2,6 +2,7 @@ use axum::{
     extract::{Path, State},
     Json,
 };
+use serde::Deserialize;
 use serde_json::{json, Value};
 
 use crate::{
@@ -11,6 +12,29 @@ use crate::{
     services::{club as club_svc, objective, pack as pack_svc, profile as profile_svc, statistics},
 };
 
+#[derive(Deserialize)]
+pub struct BuyPackRequest {
+    pub pack_definition_id: String,
+}
+
+pub async fn post_buy_pack(
+    State(state): State<AppState>,
+    Json(req): Json<BuyPackRequest>,
+) -> AppResult<Json<Value>> {
+    let profile = profile_svc::get_active_profile(&state.pool).await?;
+    let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
+    let pack = pack_svc::buy_pack(
+        &state.pool,
+        &state.pack_defs,
+        &club.id,
+        &req.pack_definition_id,
+    )
+    .await?;
+    Ok(Json(
+        json!({ "pack": pack, "message": "Pack purchased successfully" }),
+    ))
+}
+
 pub async fn get_packs(State(state): State<AppState>) -> AppResult<Json<Value>> {
     let profile = profile_svc::get_active_profile(&state.pool).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;

src/routes/sbc.rs

@@ -1,9 +1,12 @@
-use axum::{extract::State, Json};
+use axum::{
+    extract::{Path, State},
+    Json,
+};
 use serde_json::{json, Value};
 
 use crate::{
     app::AppState,
-    error::AppResult,
+    error::{AppError, AppResult},
     models::sbc::{SbcResult, SubmitSbcRequest},
     services::{club as club_svc, profile as profile_svc, sbc as sbc_svc},
 };
@@ -12,6 +15,18 @@ pub async fn get_sbcs(State(state): State<AppState>) -> AppResult<Json<Value>> {
     Ok(Json(json!({ "sbcs": state.sbc_defs })))
 }
 
+pub async fn get_sbc(
+    State(state): State<AppState>,
+    Path(sbc_id): Path<String>,
+) -> AppResult<Json<Value>> {
+    let sbc = state
+        .sbc_defs
+        .iter()
+        .find(|s| s.id == sbc_id)
+        .ok_or_else(|| AppError::NotFound(format!("SBC '{sbc_id}' not found")))?;
+    Ok(Json(json!({ "sbc": sbc })))
+}
+
 pub async fn post_sbc_submit(
     State(state): State<AppState>,
     Json(req): Json<SubmitSbcRequest>,