refactor(config): remove force-gpt-5-codex option and related handlers

- Eliminated the deprecated `force-gpt-5-codex` configuration option from all configs, handlers, and documentation.
- Updated examples and README files to reflect the removal.
- Streamlined related code by dropping unused fields and logging.

README.md

@@ -277,7 +277,6 @@ The server uses a YAML configuration file (`config.yaml`) located in the project
 | `auth.providers.*.api-keys`             | string[] | []                 | Inline API keys consumed by the `config-api-key` provider.                                                                                                                                |
 | `api-keys`                              | string[] | []                 | Legacy shorthand for inline API keys. Values are mirrored into the `config-api-key` provider for backwards compatibility.                                                                 |
 | `generative-language-api-key`           | string[] | []                 | List of Generative Language API keys.                                                                                                                                                     |
-| `force-gpt-5-codex`                     | bool     | false              | Force the conversion of GPT-5 calls to GPT-5 Codex.                                                                                                                                       |
 | `codex-api-key`                         | object   | {}                 | List of Codex API keys.                                                                                                                                                                   |
 | `codex-api-key.api-key`                 | string   | ""                 | Codex API key.                                                                                                                                                                            |
 | `codex-api-key.base-url`                | string   | ""                 | Custom Codex API endpoint, if you use a third-party API endpoint.                                                                                                                         |
@@ -353,9 +352,6 @@ generative-language-api-key:
   - "AIzaSy...03"
   - "AIzaSy...04"
 
-# Force the conversion of GPT-5 calls to GPT-5 Codex.
-force-gpt-5-codex: true
-
 # Codex API keys
 codex-api-key:
   - api-key: "sk-atSM..."

README_CN.md

@@ -289,7 +289,6 @@ console.log(await claudeResponse.json());
 | `auth.providers.*.api-keys`             | string[] | []                 | `config-api-key` 提供方使用的内联密钥。                                          |
 | `api-keys`                              | string[] | []                 | 兼容旧配置的简写，会自动同步到默认 `config-api-key` 提供方。                     |
 | `generative-language-api-key`           | string[] | []                 | 生成式语言API密钥列表。                                                       |
-| `force-gpt-5-codex`                     | bool     | false              | 强制将 GPT-5 调用转换成 GPT-5 Codex。                                        |
 | `codex-api-key`                         | object   | {}                 | Codex API密钥列表。                                                      |
 | `codex-api-key.api-key`                 | string   | ""                 | Codex API密钥。                                                        |
 | `codex-api-key.base-url`                | string   | ""                 | 自定义的Codex API端点                                                     |
@@ -365,9 +364,6 @@ generative-language-api-key:
   - "AIzaSy...03"
   - "AIzaSy...04"
 
-# 强制将 GPT-5 调用转换成 GPT-5 Codex.
-force-gpt-5-codex: true
-
 # Codex API 密钥
 codex-api-key:
   - api-key: "sk-atSM..."

config.example.yaml

@@ -45,9 +45,6 @@ generative-language-api-key:
   - "AIzaSy...03"
   - "AIzaSy...04"
 
-# forces the use of GPT-5 Codex model.
-force-gpt-5-codex: true
-
 # Codex API keys
 codex-api-key:
   - api-key: "sk-atSM..."

internal/api/handlers/management/config_basic.go

@@ -12,14 +12,6 @@ func (h *Handler) GetConfig(c *gin.Context) {
 func (h *Handler) GetDebug(c *gin.Context) { c.JSON(200, gin.H{"debug": h.cfg.Debug}) }
 func (h *Handler) PutDebug(c *gin.Context) { h.updateBoolField(c, func(v bool) { h.cfg.Debug = v }) }
 
-// ForceGPT5Codex
-func (h *Handler) GetForceGPT5Codex(c *gin.Context) {
-	c.JSON(200, gin.H{"gpt-5-codex": h.cfg.ForceGPT5Codex})
-}
-func (h *Handler) PutForceGPT5Codex(c *gin.Context) {
-	h.updateBoolField(c, func(v bool) { h.cfg.ForceGPT5Codex = v })
-}
-
 // Request log
 func (h *Handler) GetRequestLog(c *gin.Context) { c.JSON(200, gin.H{"request-log": h.cfg.RequestLog}) }
 func (h *Handler) PutRequestLog(c *gin.Context) {

internal/config/config.go

@@ -47,9 +47,6 @@ type Config struct {
 	// ClaudeKey defines a list of Claude API key configurations as specified in the YAML configuration file.
 	ClaudeKey []ClaudeKey `yaml:"claude-api-key" json:"claude-api-key"`
 
-	// ForceGPT5Codex forces the use of GPT-5 Codex model.
-	ForceGPT5Codex bool `yaml:"force-gpt-5-codex" json:"force-gpt-5-codex"`
-
 	// Codex defines a list of Codex API key configurations as specified in the YAML configuration file.
 	CodexKey []CodexKey `yaml:"codex-api-key" json:"codex-api-key"`
 

internal/watcher/watcher.go

@@ -480,9 +480,6 @@ func (w *Watcher) reloadConfig() bool {
 		if oldConfig.RemoteManagement.AllowRemote != newConfig.RemoteManagement.AllowRemote {
 			log.Debugf("  remote-management.allow-remote: %t -> %t", oldConfig.RemoteManagement.AllowRemote, newConfig.RemoteManagement.AllowRemote)
 		}
-		if oldConfig.ForceGPT5Codex != newConfig.ForceGPT5Codex {
-			log.Debugf("  force-gpt-5-codex: %t -> %t", oldConfig.ForceGPT5Codex, newConfig.ForceGPT5Codex)
-		}
 	}
 
 	log.Infof("config successfully reloaded, triggering client reload")