Implement secretbox handlers and align gacha behavior

- Add secretbox API schemas, handlers, and routes for all/showDetail/pon/multi
- Load secretbox server data through the shared serverdata loader
- Fix rarity mapping and pool rules for SR/SSR/UR special boxes
- Implement thanks festival pool behavior, including UR guarantee and SSR/UR-only rates
- Correct animation-related fields such as is_hit and lowest_rarity, and add rare UR promotion animation

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/schema/api/api.go

@@ -1,10 +1,12 @@
 package apischema
 
 type ApiReq struct {
-	Module    string `json:"module"`
-	UserID    int    `json:"user_id"`
-	Action    string `json:"action"`
-	Timestamp int64  `json:"timeStamp"`
+	Module      string `json:"module"`
+	UserID      int    `json:"user_id"`
+	Action      string `json:"action"`
+	ID          int    `json:"id"`
+	SecretBoxID int    `json:"secret_box_id"`
+	Timestamp   int64  `json:"timeStamp"`
 }
 
 type ApiResp struct {

internal/schema/api/banner/list.go

@@ -1,16 +1,15 @@
 package bannerapischema
 
 type BannerList struct {
-	BannerType       int    `json:"banner_type"`
-	TargetID         int    `json:"target_id"`
-	AssetPath        string `json:"asset_path"`
-	FixedFlag        bool   `json:"fixed_flag"`
-	BackSide         bool   `json:"back_side"`
-	BannerID         int    `json:"banner_id"`
-	StartDate        string `json:"start_date"`
-	EndDate          string `json:"end_date"`
-	AddUnitStartDate string `json:"add_unit_start_date,omitempty"`
-	WebviewURL       string `json:"webview_url,omitempty"`
+	BannerType int    `json:"banner_type"`
+	TargetID   int    `json:"target_id"`
+	AssetPath  string `json:"asset_path"`
+	FixedFlag  bool   `json:"fixed_flag"`
+	BackSide   bool   `json:"back_side"`
+	BannerID   int    `json:"banner_id"`
+	StartDate  string `json:"start_date"`
+	EndDate    string `json:"end_date"`
+	WebviewURL string `json:"webview_url,omitempty"`
 }
 
 type ListData struct {

internal/schema/api/secretbox/all.go

@@ -0,0 +1,80 @@
+package secretboxapischema
+
+type ItemAmount struct {
+	ItemID int `json:"item_id"`
+	Amount int `json:"amount"`
+}
+
+type GaugeInfo struct {
+	MaxGaugePoint int `json:"max_gauge_point"`
+	GaugePoint    int `json:"gauge_point"`
+}
+
+type SecretBoxAnimationAssets struct {
+	Type             int    `json:"type"`
+	BackgroundAsset  string `json:"background_asset"`
+	AdditionalAsset1 string `json:"additional_asset_1"`
+	AdditionalAsset2 string `json:"additional_asset_2"`
+	AdditionalAsset3 string `json:"additional_asset_3"`
+}
+
+type SecretBoxCost struct {
+	ID        int  `json:"id"`
+	Type      int  `json:"type"`
+	Amount    int  `json:"amount"`
+	ItemID    *int `json:"item_id"`
+	UnitCount int  `json:"unit_count"`
+	Payable   bool `json:"payable"`
+}
+
+type SecretBoxButton struct {
+	SecretBoxButtonType     int             `json:"secret_box_button_type"`
+	CostList                []SecretBoxCost `json:"cost_list"`
+	SecretBoxName           string          `json:"secret_box_name"`
+	LimitCount              int             `json:"limit_count,omitempty"`
+	LimitUnderMessage       string          `json:"limit_under_message,omitempty"`
+	LimitUnderMessageSuffix string          `json:"limit_under_message_suffix,omitempty"`
+	BalloonAsset            string          `json:"balloon_asset,omitempty"`
+}
+
+type SecretBoxInfo struct {
+	SecretBoxID       int    `json:"secret_box_id"`
+	SecretBoxType     int    `json:"secret_box_type"`
+	Name              string `json:"name"`
+	Description       string `json:"description"`
+	StartDate         string `json:"start_date"`
+	EndDate           string `json:"end_date"`
+	ShowEndDate       string `json:"show_end_date"`
+	AddGauge          int    `json:"add_gauge"`
+	AlwaysDisplayFlag int    `json:"always_display_flag"`
+	PonCount          int    `json:"pon_count"`
+	PonUpperLimit     int    `json:"pon_upper_limit"`
+}
+
+type SecretBoxPage struct {
+	MenuAsset       string                   `json:"menu_asset"`
+	PageOrder       int                      `json:"page_order"`
+	AnimationAssets SecretBoxAnimationAssets `json:"animation_assets"`
+	ButtonList      []SecretBoxButton        `json:"button_list"`
+	SecretBoxInfo   SecretBoxInfo            `json:"secret_box_info"`
+}
+
+type MemberCategoryPageList struct {
+	MemberCategory int             `json:"member_category"`
+	PageList       []SecretBoxPage `json:"page_list"`
+}
+
+type AllData struct {
+	UseCache           int                      `json:"use_cache"`
+	IsUnitMax          bool                     `json:"is_unit_max"`
+	ItemList           []ItemAmount             `json:"item_list"`
+	GaugeInfo          GaugeInfo                `json:"gauge_info"`
+	MemberCategoryList []MemberCategoryPageList `json:"member_category_list"`
+}
+
+type AllResp struct {
+	Result     AllData `json:"result"`
+	Status     int     `json:"status"`
+	CommandNum bool    `json:"commandNum"`
+	TimeStamp  int64   `json:"timeStamp"`
+}