feat: adaptive reasoning detection for Codex Chat providers

Auto-detect each Chat-routed Codex provider's reasoning interface from
its name, base URL, and model, then inject the matching thinking
parameter without manual configuration:

- Platform-first inference (OpenRouter, SiliconFlow) overrides model
  rules, since the same model exposes different reasoning controls
  depending on the hosting platform.
- Effort tiers are forwarded only to providers that support them
  (DeepSeek, OpenRouter, and StepFun's step-3.5-flash-2603); on/off-only
  providers (Kimi, GLM, Qwen, MiniMax, MiMo, SiliconFlow) drop the level
  instead of sending a field the upstream rejects.
- OpenRouter uses the native reasoning:{effort} object, clamps max to
  xhigh (its enum has no max), and forwards an explicit effort:"none" so
  reasoning can be turned off.
- StepFun falls back to inference so per-model effort support is honored
  (the static preset would have forced effort on step-3.5-flash too).

Includes the Codex provider-form reasoning controls, i18n strings
(zh/en/ja), and response-side reasoning extraction.

src/config/codexProviderPresets.ts

@@ -2,7 +2,11 @@
  * Codex 预设供应商配置模板
  */
 import { ProviderCategory } from "../types";
-import type { CodexApiFormat, CodexCatalogModel } from "../types";
+import type {
+  CodexApiFormat,
+  CodexCatalogModel,
+  CodexChatReasoning,
+} from "../types";
 import type { PresetTheme } from "./claudeProviderPresets";
 
 export interface CodexProviderPreset {
@@ -29,6 +33,8 @@ export interface CodexProviderPreset {
   apiFormat?: CodexApiFormat;
   // Codex Chat 本地路由模式下的模型目录
   modelCatalog?: CodexCatalogModel[];
+  // Codex Responses -> Chat Completions reasoning capability defaults
+  codexChatReasoning?: CodexChatReasoning;
 }
 
 /**
@@ -261,6 +267,14 @@ requires_openai_auth = true`,
         contextWindow: 1000000,
       },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: true,
+      thinkingParam: "thinking",
+      effortParam: "reasoning_effort",
+      effortValueMode: "deepseek",
+      outputFormat: "reasoning_content",
+    },
     category: "cn_official",
     icon: "deepseek",
     iconColor: "#1E88E5",
@@ -280,6 +294,13 @@ requires_openai_auth = true`,
     modelCatalog: modelCatalog([
       { model: "glm-5", displayName: "GLM-5", contextWindow: 200000 },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "thinking",
+      effortParam: "none",
+      outputFormat: "reasoning_content",
+    },
     category: "cn_official",
     icon: "zhipu",
     iconColor: "#0F62FE",
@@ -299,6 +320,13 @@ requires_openai_auth = true`,
     modelCatalog: modelCatalog([
       { model: "glm-5", displayName: "GLM-5", contextWindow: 200000 },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "thinking",
+      effortParam: "none",
+      outputFormat: "reasoning_content",
+    },
     category: "cn_official",
     icon: "zhipu",
     iconColor: "#0F62FE",
@@ -347,6 +375,13 @@ requires_openai_auth = true`,
       },
       { model: "qwen3-max", displayName: "Qwen3 Max", contextWindow: 262144 },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "enable_thinking",
+      effortParam: "none",
+      outputFormat: "reasoning_content",
+    },
     category: "cn_official",
     icon: "bailian",
     iconColor: "#624AFF",
@@ -366,6 +401,13 @@ requires_openai_auth = true`,
     modelCatalog: modelCatalog([
       { model: "kimi-k2.6", displayName: "Kimi K2.6", contextWindow: 262144 },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "thinking",
+      effortParam: "none",
+      outputFormat: "reasoning_content",
+    },
     category: "cn_official",
     icon: "kimi",
     iconColor: "#6366F1",
@@ -445,6 +487,13 @@ requires_openai_auth = true`,
         contextWindow: 200000,
       },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "thinking",
+      effortParam: "none",
+      outputFormat: "reasoning_content",
+    },
     category: "aggregator",
     icon: "modelscope",
     iconColor: "#624AFF",
@@ -491,6 +540,13 @@ requires_openai_auth = true`,
         contextWindow: 200000,
       },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "reasoning_split",
+      effortParam: "none",
+      outputFormat: "reasoning_details",
+    },
     category: "cn_official",
     isPartner: true,
     partnerPromotionKey: "minimax_cn",
@@ -520,6 +576,13 @@ requires_openai_auth = true`,
         contextWindow: 200000,
       },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "reasoning_split",
+      effortParam: "none",
+      outputFormat: "reasoning_details",
+    },
     category: "cn_official",
     isPartner: true,
     partnerPromotionKey: "minimax_en",
@@ -570,6 +633,13 @@ requires_openai_auth = true`,
         contextWindow: 1048576,
       },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "thinking",
+      effortParam: "none",
+      outputFormat: "reasoning_content",
+    },
     category: "cn_official",
     icon: "xiaomimimo",
     iconColor: "#000000",
@@ -593,6 +663,13 @@ requires_openai_auth = true`,
         contextWindow: 1048576,
       },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "thinking",
+      effortParam: "none",
+      outputFormat: "reasoning_content",
+    },
     category: "cn_official",
     icon: "xiaomimimo",
     iconColor: "#000000",
@@ -662,6 +739,13 @@ requires_openai_auth = true`,
     modelCatalog: modelCatalog([
       { model: "zai-org/glm-5", displayName: "GLM-5", contextWindow: 202800 },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "thinking",
+      effortParam: "none",
+      outputFormat: "reasoning_content",
+    },
     category: "aggregator",
     icon: "novita",
     iconColor: "#000000",
@@ -685,6 +769,13 @@ requires_openai_auth = true`,
         contextWindow: 262144,
       },
     ]),
+    codexChatReasoning: {
+      supportsThinking: true,
+      supportsEffort: false,
+      thinkingParam: "thinking",
+      effortParam: "none",
+      outputFormat: "reasoning_content",
+    },
     category: "aggregator",
     icon: "nvidia",
     iconColor: "#000000",