refactor: 品牌重命名 + maxTokens 支持 + 设置面板简化

- CodeGuard → Code Purifier / 净码特工（displayName、命令、配置标题）
- 新增 ai.maxTokens 配置项，所有 Provider 及 fixer 传入 maxTokens
- AI 引擎增强：repairJsonEscapes + JSON 解析 fallback + 详细错误信息
- 设置面板规则管理改为文件级（list/delete .yaml），addRule 改为 AI 从 Markdown 生成 YAML
- yaml-parser 简化：移除 config.yaml 的 enable/disable 过滤逻辑
- 审查报告面板：errorBanner 优先显示具体错误、lint 诊断显示 suggestion、移除 translatedDiagnostics 独立渲染
- merger 中 translatedDiagnostics 覆盖原始 lint 诊断 message/suggestion
- HTML linter 配置项、测试用例重写、typescript-eslint 移入 dependencies

src/adapters/pmd.ts

@@ -1,5 +1,6 @@
 import * as vscode from 'vscode';
 import * as path from 'path';
+import { existsSync } from 'fs';
 import { execSync, spawn } from 'child_process';
 import type { LinterAdapter, LinterDiagnostic, AdapterResult } from '../types';
 import { getPMDRulesetPath } from '../config';
@@ -7,24 +8,36 @@ import { getPMDRulesetPath } from '../config';
 export class PmdAdapter implements LinterAdapter {
   id = 'pmd';
   supportedLanguages = ['java'];
+  private pmdDir: string | null = null;
+
+  private resolvePmdDir(): string {
+    if (this.pmdDir) { return this.pmdDir; }
+    const candidates: string[] = [];
+    try {
+      const ext = vscode.extensions.getExtension?.('vscode-code-reviewer');
+      if (ext?.extensionPath) {
+        candidates.push(path.join(ext.extensionPath, 'jars', 'pmd'));
+        candidates.push(path.join(ext.extensionPath, 'out', 'jars', 'pmd'));
+      }
+    } catch { /* ignore */ }
+    candidates.push(path.join(path.resolve(__dirname, '..'), 'jars', 'pmd'));
+    candidates.push(path.join(path.resolve(__dirname, '..', '..'), 'jars', 'pmd'));
+    for (const dir of candidates) {
+      if (existsSync(path.join(dir, 'PmdRunner.class'))) {
+        this.pmdDir = dir;
+        return dir;
+      }
+    }
+    this.pmdDir = candidates[0];
+    return this.pmdDir;
+  }
 
   private getPmdLibClasspath(): string {
-    const extRoot = this.getExtensionRoot();
-    const pmdLib = path.join(extRoot, 'jars', 'pmd', 'lib');
-    return path.join(pmdLib, '*');
+    return path.join(this.resolvePmdDir(), 'lib', '*');
   }
 
   private getPmdRunnerClasspath(): string {
-    const extRoot = this.getExtensionRoot();
-    return path.join(extRoot, 'jars', 'pmd');
-  }
-
-  private getExtensionRoot(): string {
-    try {
-      const extPath = vscode.extensions.getExtension?.('vscode-code-reviewer')?.extensionPath;
-      if (extPath) { return extPath; }
-    } catch { /* extension not available */ }
-    return path.join(__dirname, '..', '..');
+    return this.resolvePmdDir();
   }
 
   async check(document: vscode.TextDocument, workingDir: string): Promise<AdapterResult> {
@@ -43,7 +56,7 @@ export class PmdAdapter implements LinterAdapter {
       return { diagnostics, status: 'ok' };
     } catch (err) {
       const message = err instanceof Error ? err.message : String(err);
-      if (message.includes('ENOENT') || message.includes('java')) {
+      if (message.includes('ENOENT') || message.includes('java not found') || message.includes('Cannot find')) {
         return { diagnostics: [], status: 'tool-unavailable', errorMessage: 'Java 11+ 未安装或不在 PATH 中' };
       }
       return { diagnostics: [], status: 'execution-failed', errorMessage: message };