feat: add claude_args configuration for fixed command-line arguments (#11)

Add a new `claude_args` field to ccc.json that allows users to specify
fixed command-line arguments to be passed to Claude Code on every launch.

Changes:
- Add ClaudeArgs field to Config struct
- Modify runClaude to merge configured args with command-line args
- Update documentation with examples

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <noreply@anthropic.com>

Author: guyskk

README-CN.md

@@ -75,6 +75,7 @@ $os = "windows"; $arch = if ([Environment]::Is64BitProcess) { "amd64" } else { t
       "DISABLE_COST_WARNINGS": "1"
     }
   },
+  "claude_args": ["--verbose", "--debug"],
   "current_provider": "kimi",
   "providers": {
     "kimi": {
@@ -107,6 +108,7 @@ $os = "windows"; $arch = if ([Environment]::Is64BitProcess) { "amd64" } else { t
 
 **配置结构：**
 - `settings` — 所有提供商共享的基础模板
+- `claude_args` — 固定传递给 Claude Code 的参数（可选）
 - `current_provider` — 最后使用的提供商（自动更新）
 - `providers` — 提供商特定配置
 
@@ -140,6 +142,11 @@ ccc kimi --help
 ccc kimi /path/to/project
 ```
 
+**说明：** `claude_args` 中配置的参数会自动添加到任何命令行参数之前。例如，如果 `claude_args` 配置为 `["--verbose", "--debug"]`，执行 `ccc kimi --help` 时实际运行的命令是：
+```bash
+claude --settings ~/.claude/settings-kimi.json --verbose --debug --help
+```
+
 ### 配置验证命令
 
 `ccc validate` 命令帮助您验证提供商配置：

README.md

@@ -75,6 +75,7 @@ Create `~/.claude/ccc.json`:
       "DISABLE_COST_WARNINGS": "1"
     }
   },
+  "claude_args": ["--verbose", "--debug"],
   "current_provider": "kimi",
   "providers": {
     "kimi": {
@@ -107,6 +108,7 @@ Create `~/.claude/ccc.json`:
 
 **Config structure:**
 - `settings` — Base template shared by all providers
+- `claude_args` — Fixed arguments to pass to Claude Code (optional)
 - `current_provider` — Last used provider (auto-updated)
 - `providers` — Provider-specific overrides
 
@@ -157,6 +159,11 @@ ccc kimi --help
 ccc kimi /path/to/project
 ```
 
+**Note:** Arguments configured in `claude_args` are automatically prepended to any command-line arguments. For example, if `claude_args` is `["--verbose", "--debug"]` and you run `ccc kimi --help`, the actual command will be:
+```bash
+claude --settings ~/.claude/settings-kimi.json --verbose --debug --help
+```
+
 ### Validation Command
 
 The `ccc validate` command helps you verify your provider configurations:

internal/cli/cli.go

@@ -207,7 +207,7 @@ func Run(cmd *Command) error {
 	}
 
 	// Run claude with the settings file
-	if err := runClaude(providerName, mergedSettings, cmd.ClaudeArgs); err != nil {
+	if err := runClaude(cfg, providerName, mergedSettings, cmd.ClaudeArgs); err != nil {
 		return fmt.Errorf("error running claude: %w", err)
 	}
 
@@ -270,14 +270,19 @@ func determineProvider(cmd *Command, cfg *config.Config) string {
 }
 
 // runClaude executes the claude command with the settings file.
-func runClaude(providerName string, settings map[string]interface{}, args []string) error {
+func runClaude(cfg *config.Config, providerName string, settings map[string]interface{}, args []string) error {
 	settingsPath := config.GetSettingsPath(providerName)
 
 	// Extract ANTHROPIC_AUTH_TOKEN from env
 	authToken := provider.GetAuthToken(settings)
 
-	// Build the claude command
-	cmdArgs := append([]string{"--settings", settingsPath}, args...)
+	// Build the claude command: merge configured claude_args with command-line args
+	var cmdArgs []string
+	cmdArgs = append(cmdArgs, "--settings", settingsPath)
+	if len(cfg.ClaudeArgs) > 0 {
+		cmdArgs = append(cmdArgs, cfg.ClaudeArgs...)
+	}
+	cmdArgs = append(cmdArgs, args...)
 	claudeCmd := exec.Command("claude", cmdArgs...)
 
 	// Set up environment variables

internal/config/config.go

@@ -32,6 +32,7 @@ func GetDir() string {
 // Settings and Providers use dynamic maps to handle arbitrary Claude settings fields.
 type Config struct {
 	Settings        map[string]interface{}            `json:"settings"`
+	ClaudeArgs      []string                          `json:"claude_args,omitempty"`
 	CurrentProvider string                            `json:"current_provider"`
 	Providers       map[string]map[string]interface{} `json:"providers"`
 }