chore: apply cargo fmt across workspace and update docs

- Run cargo fmt on all Rust crates for consistent formatting
- Update CLAUDE.md with WASM plugin commands and dev.ps1 instructions
- Update wiki: add WASM plugin architecture, rewrite dev environment docs
- Minor frontend cleanup (unused imports)

apps/web/src/pages/settings/DictionaryManager.tsx

@@ -50,7 +50,7 @@ export default function DictionaryManager() {
     setLoading(true);
     try {
       const result = await listDictionaries();
-      setDictionaries(Array.isArray(result) ? result : result.items ?? []);
+      setDictionaries(Array.isArray(result) ? result : result.data ?? []);
     } catch {
       message.error('加载字典列表失败');
     }