Merge origin/master (v0.5.75) into gitea/new_feature

Resolve conflicts:
- package.json / cli/package.json: take 0.5.75
- .gitignore: union both sides (upstream 9router-*/temp files + local state dirs)
- CHANGELOG.md: keep both blocks, v0.5.75 above v0.5.70
- nonStreamingHandler.js: merge imports (unwrapClineEnvelope +
  tokensForDetail/shouldPersistRequestDetail); drop dead appendRequestLog
- providers/[id]/page.js: union useState blocks (compatible-model states
  + importingClineModels)

Co-authored-by: CommandCodeBot <noreply@commandcode.ai>

tests/unit/image-generation.test.js

@@ -351,7 +351,7 @@ describe("handleImageGenerationCore", () => {
         headers: expect.objectContaining({
           authorization: "Bearer codex-token",
           "chatgpt-account-id": "account-123",
-          version: "0.136.0",
+          version: "0.154.0",
         }),
       })
     );
@@ -367,6 +367,47 @@ describe("handleImageGenerationCore", () => {
     expect(responseBody.data[0].b64_json).toBe("base64codeximage");
   });
 
+  it("generates image with Codex gpt-image-2.5 tool model", async () => {
+    global.fetch.mockResolvedValueOnce(
+      new Response(
+        [
+          "event: response.output_item.done",
+          'data: {"item":{"type":"image_generation_call","result":"base64codeximage"}}',
+          "",
+          "",
+        ].join("\n"),
+        { status: 200, headers: { "Content-Type": "text/event-stream" } }
+      )
+    );
+
+    const result = await handleImageGenerationCore({
+      body: {
+        prompt: "A futuristic city",
+        size: "1024x1024",
+        output_format: "png",
+      },
+      modelInfo: { provider: "codex", model: "gpt-image-2.5" },
+      credentials: {
+        accessToken: "codex-token",
+        providerSpecificData: { chatgptAccountId: "account-123" },
+      },
+      log: null,
+    });
+
+    expect(result.success).toBe(true);
+    const fetchCall = global.fetch.mock.calls[0];
+    const requestBody = JSON.parse(fetchCall[1].body);
+    expect(requestBody.model).toBe("gpt-5.5");
+    expect(requestBody.tools).toEqual([
+      { type: "image_generation", output_format: "png", size: "1024x1024", action: "generate", model: "gpt-image-2.5" },
+    ]);
+    expect(requestBody.tool_choice).toEqual({ type: "image_generation" });
+    expect(requestBody.reasoning).toEqual({ effort: "medium", summary: "auto" });
+
+    const responseBody = await result.response.json();
+    expect(responseBody.data[0].b64_json).toBe("base64codeximage");
+  });
+
   it("generates image with Cloudflare Workers AI JSON response", async () => {
     global.fetch.mockResolvedValueOnce(
       new Response(