feat(ecosystem): add group analysis and smash or pass plugins

- Register new fun plugins in the ecosystem introduction
- Update sidebar navigation for group analysis and smash or pass
- Move knowledge plugin from other to extension category
- Refactor knowledge plugin documentation with detailed RAG engines
- Add comprehensive configuration and command docs for new plugins

Author: dingyi222666

docs/.vitepress/config.ts

@@ -694,12 +694,12 @@ function sidebarEcosystem(): DefaultTheme.SidebarItem[] {
             text: "娱乐插件",
             items: [
                 {
-                    text: "群分析 (A)",
-                    link: "/ecosystem/other/character",
+                    text: "群分析 (Group Analysis)",
+                    link: "/ecosystem/fun/group-analysis",
                 },
                 {
-                    text: "Smash Or Pass (Translator)",
-                    link: "/ecosystem/other/translator",
+                    text: "Smash Or Pass",
+                    link: "/ecosystem/fun/smash-or-pass",
                 },
             ],
         },