feat(modules): remove world cup module

The 2026 tournament has ended, so the schedule and daily digest commands
have no upcoming matches to report. Drops the module, its catalog entry,
command menu entries, and the WC_FOOTBALL_DATA_TOKEN env var.

Stored subscriber and match-cache documents are left in place.

cmd/server/main.go

@@ -25,7 +25,6 @@ import (
 	"github.com/tiennm99/miti99bot/internal/modules/stats"
 	"github.com/tiennm99/miti99bot/internal/modules/stock"
 	"github.com/tiennm99/miti99bot/internal/modules/util"
-	"github.com/tiennm99/miti99bot/internal/modules/wc"
 	"github.com/tiennm99/miti99bot/internal/modules/wordle"
 	"github.com/tiennm99/miti99bot/internal/server"
 	"github.com/tiennm99/miti99bot/internal/storage"
@@ -62,7 +61,6 @@ func factories() map[string]modules.Factory {
 		"wordle":           wordle.New,
 		"loldle":           loldle.New,
 		lol.CollectionName: lol.New,
-		"wc":               wc.New,
 		"coin":             coin.New,
 		"gold":             gold.New,
 		"stock":            stock.New,

cmd/server/main_test.go

@@ -50,19 +50,18 @@ func TestComposeDoesNotOverrideSourceCommit(t *testing.T) {
 
 func TestFactoriesIncludesExpectedModules(t *testing.T) {
 	catalog := factories()
-	for _, name := range []string{"gold", "coin", "wc"} {
+	for _, name := range []string{"gold", "coin"} {
 		if catalog[name] == nil {
 			t.Fatalf("factories missing %s", name)
 		}
 	}
-	reg, err := modules.Build([]string{"gold", "coin", "wc"}, catalog, storage.NewMemoryProvider(), modules.BuildOptions{})
+	reg, err := modules.Build([]string{"gold", "coin"}, catalog, storage.NewMemoryProvider(), modules.BuildOptions{})
 	if err != nil {
 		t.Fatalf("Build selected modules: %v", err)
 	}
 	for _, name := range []string{
 		"gold_price", "gold_topup", "gold_buy", "gold_sell", "gold_portfolio",
 		"coin_price", "coin_topup", "coin_buy", "coin_sell", "coin_portfolio",
-		"wc", "wc_this_week", "wc_subscribe", "wc_unsubscribe",
 	} {
 		if _, ok := reg.AllCommands[name]; !ok {
 			t.Fatalf("missing command %s", name)