feat(all): add hunting and events, commerce and rewards, binary calendars, GameData caching and login diagnostics

Implement hunting AP and progress, event tasks, exchanges, games, stories and actions; connect battle and reward handling.

Add CashShop plugin and installation, server purchases and entitlements, recharge rules and plugin version metadata.

Distribute binary calendars independently; cache GameData in memory and fix single-connection query deadlocks.

Improve automatic login and recovery diagnostics; document configuration and release flows.

go/internal/client/plugin/install.go

@@ -23,6 +23,7 @@ type Spec struct {
 var (
 	LocalIdentity = Spec{fileName: "BD2LocalIdentity.dll"}
 	LoginUI       = Spec{fileName: "BD2LoginUI.dll"}
+	CashShop      = Spec{fileName: "BD2CashShop.dll"}
 	GameNames     = Spec{fileName: "BD2.GameNames.dll"}
 )
 
@@ -84,7 +85,7 @@ func Install(spec Spec, gameDir, source string) (Result, error) {
 	// Read both artifacts before touching the installation. The runtime table
 	// library is shipped beside every plugin, including explicit development paths.
 	var runtimeData []byte
-	if spec == LocalIdentity || spec == LoginUI {
+	if spec == LocalIdentity || spec == LoginUI || spec == CashShop {
 		runtimeSource := filepath.Join(filepath.Dir(source), GameNames.fileName)
 		runtimeData, err = os.ReadFile(runtimeSource)
 		if err != nil {