test(presenter)+fix(i18n): 淘汰策略与共享缓存解耦；注释里的 ASCII 引号

- prune() 抽成独立函数：全局缓存被所有用例共享，谁往里面灌 240+ 条都会顺手清掉
  别的用例刚缓存的键（实测：并行跑时 the_second_identical_refresh_... 假红）。淘汰
  策略改在本地 Cache 上测，两条判据各自确定；
- clippy -D warnings：from_ref 代替 &[x.clone()]；
- model.rs 注释里的 "原因 + OS 原文" 用 ASCII 引号 → 页面字面量白名单守门报红，改
  中文引号；core/events 的三处文档失真登记为 TowerFinding（scope 外）；
- 出处文案口径：TooLarge 的 detail 只留数字（presenter 不产人读文案）。

crates/app-iced/src/pages/instances/text/saves.rs

@@ -143,7 +143,12 @@ impl Texts {
         self.0.render(Key::InstancesSavesDeleted, &[("dir", dir)])
     }
     /// 备份成功的回执：`已把 A 备份到 D:/…／A-…zip（1.2 MiB）。`
-    pub(in crate::pages::instances) fn saves_backed_up(self, dir: &str, path: &str, size: &str) -> String {
+    pub(in crate::pages::instances) fn saves_backed_up(
+        self,
+        dir: &str,
+        path: &str,
+        size: &str,
+    ) -> String {
         self.0.render(
             Key::InstancesSavesBackedUp,
             &[("dir", dir), ("path", path), ("size", size)],
@@ -157,21 +162,33 @@ impl Texts {
         )
     }
     /// 重命名失败的主句：`重命名 A 失败：同名世界已存在`。
-    pub(in crate::pages::instances) fn saves_rename_failed(self, file: &str, reason: &str) -> String {
+    pub(in crate::pages::instances) fn saves_rename_failed(
+        self,
+        file: &str,
+        reason: &str,
+    ) -> String {
         self.0.render(
             Key::InstancesSavesRenameFailed,
             &[("file", file), ("reason", reason)],
         )
     }
     /// 删除失败的主句。
-    pub(in crate::pages::instances) fn saves_delete_failed(self, file: &str, reason: &str) -> String {
+    pub(in crate::pages::instances) fn saves_delete_failed(
+        self,
+        file: &str,
+        reason: &str,
+    ) -> String {
         self.0.render(
             Key::InstancesSavesDeleteFailed,
             &[("file", file), ("reason", reason)],
         )
     }
     /// 备份失败的主句。
-    pub(in crate::pages::instances) fn saves_backup_failed(self, file: &str, reason: &str) -> String {
+    pub(in crate::pages::instances) fn saves_backup_failed(
+        self,
+        file: &str,
+        reason: &str,
+    ) -> String {
         self.0.render(
             Key::InstancesSavesBackupFailed,
             &[("file", file), ("reason", reason)],
@@ -179,7 +196,10 @@ impl Texts {
     }
     // ------------------------------------------------- 截图缩略图（M251 · SAVESHOTS）
     /// 「这一格为什么没有图」的短句（`未生成预览` / 太大 / 读不出 / 解不出）。
-    pub(in crate::pages::instances) fn saves_preview_reason(self, kind: ScreenshotThumbKind) -> &'static str {
+    pub(in crate::pages::instances) fn saves_preview_reason(
+        self,
+        kind: ScreenshotThumbKind,
+    ) -> &'static str {
         self.text(match kind {
             ScreenshotThumbKind::TooLarge => Key::InstancesSavesPreviewTooLarge,
             ScreenshotThumbKind::Unreadable => Key::InstancesSavesPreviewUnreadable,