feat: 支持OpenAI/Anthropic双API提供者切换，Banner显示URL和模型

通过 claude-code.provider 配置切换API提供者:
- openai（默认）: 使用 OpenAI 兼容 API，支持各种代理服务
- anthropic: 使用 Anthropic 原生 API

配置方式:
- 环境变量: CLAUDE_CODE_PROVIDER=openai|anthropic
- application.yml: claude-code.provider

Banner 增强:
- 启动时显示当前 Provider、Model、API URL
- Scanner降级模式也显示同样信息

启动脚本更新:
- run.ps1/run.bat 添加完整的双provider配置说明

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

run.bat

@@ -12,7 +12,18 @@ REM === 抑制 Maven JVM 的 JDK25 兼容性警告 ===
 set MAVEN_OPTS=--enable-native-access=ALL-UNNAMED --sun-misc-unsafe-memory-access=allow
 
 REM === AI API 配置（按需修改） ===
+REM 选择 API 提供者：openai（默认）或 anthropic
+REM set CLAUDE_CODE_PROVIDER=openai
+REM set CLAUDE_CODE_PROVIDER=anthropic
+
+REM OpenAI 兼容 API 配置（默认）
+REM set AI_API_KEY=your-api-key-here
+REM set AI_BASE_URL=https://api.openai.com
+REM set AI_OPENAI_MODEL=gpt-4o
+
+REM Anthropic 原生 API 配置
 REM set ANTHROPIC_API_KEY=your-api-key-here
+REM set ANTHROPIC_BASE_URL=https://api.anthropic.com
 REM set AI_MODEL=claude-sonnet-4-20250514
 
 REM === 设置控制台 UTF-8 编码（支持 emoji 等字符） ===

run.ps1

@@ -11,7 +11,18 @@ $env:Path = "D:\Dev\jdk-25\bin;$env:Path"
 $env:MAVEN_OPTS = "--enable-native-access=ALL-UNNAMED --sun-misc-unsafe-memory-access=allow"
 
 # === AI API 配置（按需修改） ===
+# 选择 API 提供者：openai（默认）或 anthropic
+# $env:CLAUDE_CODE_PROVIDER = "openai"     # 使用 OpenAI 兼容 API（支持代理）
+# $env:CLAUDE_CODE_PROVIDER = "anthropic"  # 使用 Anthropic 原生 API
+
+# OpenAI 兼容 API 配置（默认）
+# $env:AI_API_KEY = "your-api-key-here"
+# $env:AI_BASE_URL = "https://api.openai.com"
+# $env:AI_OPENAI_MODEL = "gpt-4o"
+
+# Anthropic 原生 API 配置
 # $env:ANTHROPIC_API_KEY = "your-api-key-here"
+# $env:ANTHROPIC_BASE_URL = "https://api.anthropic.com"
 # $env:AI_MODEL = "claude-sonnet-4-20250514"
 
 # === 设置控制台 UTF-8 编码（支持 emoji 等字符） ===

src/main/java/com/claudecode/config/AppConfig.java

@@ -12,21 +12,31 @@ import com.claudecode.repl.ReplSession;
 import com.claudecode.tool.ToolContext;
 import com.claudecode.tool.ToolRegistry;
 import com.claudecode.tool.impl.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.ai.chat.model.ChatModel;
 import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 import java.nio.file.Path;
+import java.util.Map;
 
 /**
  * 应用配置类 —— Spring Bean 装配。
  * <p>
  * 集中管理所有组件的创建和依赖注入。
+ * 通过 claude-code.provider 配置切换 API 提供者（openai / anthropic）。
  */
 @Configuration
 public class AppConfig {
 
+    private static final Logger log = LoggerFactory.getLogger(AppConfig.class);
+
+    @Value("${claude-code.provider:openai}")
+    private String provider;
+
     @Bean
     public ToolContext toolContext() {
         return ToolContext.defaultContext();
@@ -69,11 +79,45 @@ public class AppConfig {
         return registry;
     }
 
+    /**
+     * 根据 claude-code.provider 配置选择 ChatModel。
+     * - "anthropic" → 使用 anthropicChatModel
+     * - "openai"（默认）→ 使用 openAiChatModel
+     */
     @Bean
-    public TokenTracker tokenTracker() {
+    public ChatModel activeChatModel(
+            @Qualifier("openAiChatModel") ChatModel openAiModel,
+            @Qualifier("anthropicChatModel") ChatModel anthropicModel) {
+
+        if ("anthropic".equalsIgnoreCase(provider)) {
+            log.info("使用 Anthropic 原生 API");
+            return anthropicModel;
+        } else {
+            log.info("使用 OpenAI 兼容 API");
+            return openAiModel;
+        }
+    }
+
+    @Bean
+    public ProviderInfo providerInfo() {
+        String baseUrl;
+        String model;
+
+        if ("anthropic".equalsIgnoreCase(provider)) {
+            baseUrl = System.getenv().getOrDefault("ANTHROPIC_BASE_URL", "https://api.anthropic.com");
+            model = System.getenv().getOrDefault("AI_MODEL", "claude-sonnet-4-20250514");
+        } else {
+            baseUrl = System.getenv().getOrDefault("AI_BASE_URL", "https://api.openai.com");
+            model = System.getenv().getOrDefault("AI_OPENAI_MODEL", "gpt-4o");
+        }
+
+        return new ProviderInfo(provider, baseUrl, model);
+    }
+
+    @Bean
+    public TokenTracker tokenTracker(ProviderInfo info) {
         TokenTracker tracker = new TokenTracker();
-        String model = System.getenv().getOrDefault("AI_MODEL", "claude-sonnet-4-20250514");
+        tracker.setModel(info.model());
-        tracker.setModel(model);
         return tracker;
     }
 
@@ -81,16 +125,13 @@ public class AppConfig {
     public String systemPrompt() {
         Path projectDir = Path.of(System.getProperty("user.dir"));
 
-        // 加载 CLAUDE.md
         ClaudeMdLoader claudeLoader = new ClaudeMdLoader(projectDir);
         String claudeMd = claudeLoader.load();
 
-        // 加载 Skills
         SkillLoader skillLoader = new SkillLoader(projectDir);
         skillLoader.loadAll();
         String skillsSummary = skillLoader.buildSkillsSummary();
 
-        // 收集 Git 上下文
         GitContext gitContext = new GitContext(projectDir).collect();
         String gitSummary = gitContext.buildSummary();
 
@@ -102,14 +143,14 @@ public class AppConfig {
     }
 
     @Bean
-    public AgentLoop agentLoop(@Qualifier("anthropicChatModel") ChatModel chatModel, ToolRegistry toolRegistry,
+    public AgentLoop agentLoop(ChatModel activeChatModel, ToolRegistry toolRegistry,
                                ToolContext toolContext, String systemPrompt, TokenTracker tokenTracker) {
-        AgentLoop mainLoop = new AgentLoop(chatModel, toolRegistry, toolContext, systemPrompt, tokenTracker);
+        AgentLoop mainLoop = new AgentLoop(activeChatModel, toolRegistry, toolContext, systemPrompt, tokenTracker);
 
-        // 注册子 Agent 工厂到 ToolContext，使 AgentTool 能创建独立的 AgentLoop
+        // 注册子 Agent 工厂
         toolContext.set(AgentTool.AGENT_FACTORY_KEY,
                 (java.util.function.Function<String, String>) prompt -> {
-                    AgentLoop subLoop = new AgentLoop(chatModel, toolRegistry, toolContext, systemPrompt);
+                    AgentLoop subLoop = new AgentLoop(activeChatModel, toolRegistry, toolContext, systemPrompt);
                     return subLoop.run(prompt);
                 });
 
@@ -118,7 +159,11 @@ public class AppConfig {
 
     @Bean
     public ReplSession replSession(AgentLoop agentLoop, ToolRegistry toolRegistry,
-                                   CommandRegistry commandRegistry) {
+                                   CommandRegistry commandRegistry, ProviderInfo providerInfo) {
-        return new ReplSession(agentLoop, toolRegistry, commandRegistry);
+        return new ReplSession(agentLoop, toolRegistry, commandRegistry, providerInfo);
+    }
+
+    /** API 提供者信息，供 Banner 和命令显示 */
+    public record ProviderInfo(String provider, String baseUrl, String model) {
     }
 }

src/main/java/com/claudecode/repl/ReplSession.java

@@ -1,5 +1,6 @@
 package com.claudecode.repl;
 
+import com.claudecode.config.AppConfig.ProviderInfo;
 import com.claudecode.command.CommandContext;
 import com.claudecode.command.CommandRegistry;
 import com.claudecode.console.*;
@@ -40,6 +41,7 @@ public class ReplSession {
     private final AgentLoop agentLoop;
     private final ToolRegistry toolRegistry;
     private final CommandRegistry commandRegistry;
+    private final ProviderInfo providerInfo;
     private final PrintStream out;
     private final ToolStatusRenderer toolStatusRenderer;
     private final MarkdownRenderer markdownRenderer;
@@ -49,10 +51,12 @@ public class ReplSession {
 
     public ReplSession(AgentLoop agentLoop,
                        ToolRegistry toolRegistry,
-                       CommandRegistry commandRegistry) {
+                       CommandRegistry commandRegistry,
+                       ProviderInfo providerInfo) {
         this.agentLoop = agentLoop;
         this.toolRegistry = toolRegistry;
         this.commandRegistry = commandRegistry;
+        this.providerInfo = providerInfo;
         // 强制使用 UTF-8 编码输出，确保 emoji 等 Unicode 字符在 Windows 终端正常显示
         this.out = new PrintStream(System.out, true, StandardCharsets.UTF_8);
         this.toolStatusRenderer = new ToolStatusRenderer(out);
@@ -163,7 +167,13 @@ public class ReplSession {
     /** 打印启动 Banner（JLine 模式） */
     private void printBanner(Terminal terminal) {
         BannerPrinter.printCompact(out);
-        out.println(AnsiStyle.dim("  Working directory: " + System.getProperty("user.dir")));
+
+        // 显示 API 提供者、模型和 URL
+        out.println(AnsiStyle.dim("  Provider: ") + AnsiStyle.cyan(providerInfo.provider().toUpperCase())
+                + AnsiStyle.dim("  Model: ") + AnsiStyle.cyan(providerInfo.model()));
+        out.println(AnsiStyle.dim("  API URL:  ") + AnsiStyle.cyan(providerInfo.baseUrl()));
+
+        out.println(AnsiStyle.dim("  Work Dir: " + System.getProperty("user.dir")));
         out.println(AnsiStyle.dim("  Tools: " + toolRegistry.size() + " registered"));
 
         boolean isDumb = "dumb".equals(terminal.getType());
@@ -188,7 +198,10 @@ public class ReplSession {
 
     private void startWithScanner() {
         BannerPrinter.printCompact(out);
-        out.println(AnsiStyle.dim("  Working directory: " + System.getProperty("user.dir")));
+        out.println(AnsiStyle.dim("  Provider: ") + AnsiStyle.cyan(providerInfo.provider().toUpperCase())
+                + AnsiStyle.dim("  Model: ") + AnsiStyle.cyan(providerInfo.model()));
+        out.println(AnsiStyle.dim("  API URL:  ") + AnsiStyle.cyan(providerInfo.baseUrl()));
+        out.println(AnsiStyle.dim("  Work Dir: " + System.getProperty("user.dir")));
         out.println(AnsiStyle.dim("  Tools: " + toolRegistry.size() + " registered"));
         out.println(AnsiStyle.dim("  Mode: Scanner (basic input)"));
         out.println();

src/main/resources/application.yml

@@ -1,21 +1,25 @@
 spring:
-  # 主配置：使用 Anthropic 原生 API
   ai:
+    # === Anthropic 原生 API 配置 ===
+    # 启用时设置 claude-code.provider=anthropic
     anthropic:
       api-key: ${ANTHROPIC_API_KEY:}
-      base-url: ${ANTHROPIC_BASE_URL:https://open.bigmodel.cn/api/anthropic}
+      base-url: ${ANTHROPIC_BASE_URL:https://api.anthropic.com}
       chat:
         options:
-          model: ${AI_MODEL:claude-sonnet-4}
+          model: ${AI_MODEL:claude-sonnet-4-20250514}
           max-tokens: ${AI_MAX_TOKENS:8096}
           temperature: 0.7
-    # 备选：兼容 OpenAI 格式的 API（如自建代理）
+
+    # === OpenAI 兼容 API 配置 ===
+    # 启用时设置 claude-code.provider=openai（默认）
+    # 支持 OpenAI、Azure OpenAI、兼容 API 代理等
     openai:
       api-key: ${AI_API_KEY:}
       base-url: ${AI_BASE_URL:https://api.openai.com}
       chat:
         options:
-          model: ${AI_OPENAI_MODEL:}
+          model: ${AI_OPENAI_MODEL:gpt-4o}
 
   # 不启动 Web 服务器（纯 CLI 模式）
   main:
@@ -27,6 +31,11 @@ spring:
     virtual:
       enabled: true
 
+# === Claude Code Java 自定义配置 ===
+claude-code:
+  # API 提供者：openai 或 anthropic
+  provider: ${CLAUDE_CODE_PROVIDER:openai}
+
 # 日志：CLI 模式下只显示 WARN 及以上，保持控制台干净
 logging:
   level: