feat: 移植 B50 成绩图，并把项目名从 purarine 改回 ichino

海报从 Empurple 的 Best50ImageRenderer/ImageBuilder 移植：按原始像素坐标
(1762x1850 画布、300x100 卡片、5 列、行距 120) 叠加在 base.png 上，底图里
已画好的面板/药丸标签/页脚不重复绘制；页面外壳走 Ichino 的 Material 3。

RatingCalculator 的达成率分档改成单张有序表，避免偏移与评级错位；
RA 与评级由 test/rating_calculator_test.dart 的边界用例锁定。

GetUserRatingApi 只需要 userId(Cookie 可选)，所以 Preview API 模式、未登录
游戏服务器时也能出图，只是没有 FC/AP/FS 标记。导出用 RepaintBoundary 抓
全尺寸 PNG：原生走 share_plus(不支持文件分享的平台回退为落盘并提示路径)，
web 走下载。

BEST35 与 BEST15 改为各自独立排版。原先沿用 Empurple 的跨列表全局序号，
BEST35 没打满时 BEST15 会整体上移混进上半区。

path_provider 会经 path_provider_android 2.3.x 拖入 jni 插件，而 jni 把
windows/linux 也声明成 ffiPlugin，桌面构建因此去链接 jvm.lib 并失败，
故用 dependency_overrides 钉住 path_provider_android <2.3.0。

ios/Runner.xcodeproj/project.pbxproj

@@ -475,7 +475,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.purarine;
+				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.ichino;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
@@ -493,7 +493,7 @@
 				DEVELOPMENT_TEAM = 3ACWHAQMGP;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.purarine.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.ichino.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -512,7 +512,7 @@
 				DEVELOPMENT_TEAM = 3ACWHAQMGP;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.purarine.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.ichino.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Runner.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/Runner";
@@ -529,7 +529,7 @@
 				DEVELOPMENT_TEAM = 3ACWHAQMGP;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.purarine.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.ichino.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Runner.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/Runner";
@@ -663,7 +663,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.purarine;
+				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.ichino;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -688,7 +688,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.purarine;
+				PRODUCT_BUNDLE_IDENTIFIER = dev.naominet.ichino;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;

ios/Runner/Info.plist

@@ -7,7 +7,7 @@
 	<key>CFBundleDevelopmentRegion</key>
 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 	<key>CFBundleDisplayName</key>
-	<string>Purarine</string>
+	<string>Ichino</string>
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>
@@ -15,7 +15,7 @@
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
-	<string>purarine</string>
+	<string>ichino</string>
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>

ios/Runner/SceneDelegate.swift

@@ -14,7 +14,7 @@ class SceneDelegate: FlutterSceneDelegate {
     guard let controller = window?.rootViewController as? FlutterViewController else { return }
 
     let channel = FlutterMethodChannel(
-      name: "dev.naominet.purarine/qr_scanner",
+      name: "dev.naominet.ichino/qr_scanner",
       binaryMessenger: controller.binaryMessenger
     )