chore(OpenAI): Rename API key name

Author: hirokiterashima

src/main/java/org/wise/portal/presentation/web/controllers/ChatGptController.java

@@ -29,7 +29,7 @@ public class ChatGptController {
   @PostMapping
   protected String sendChatMessage(@RequestBody String body) {
     if (openAiApiKey == null || openAiApiKey.isEmpty()) {
-      throw new RuntimeException("OPENAI_API_KEY is not set");
+      throw new RuntimeException("openai.api.key is not set");
     }
     try {
       URL url = new URL(openAiChatApiUrl);

src/main/java/org/wise/portal/presentation/web/controllers/author/project/AuthorAPIController.java

@@ -399,7 +399,7 @@ protected HashMap<String, Object> getAuthorProjectConfig(Authentication auth,
     config.put("projectAssetURL", contextPath + "/api/author/project/asset/" + project.getId());
     config.put("projectBaseURL", projectBaseURL);
     config.put("previewProjectURL", contextPath + "/preview/unit/" + project.getId());
-    config.put("chatGptEnabled", !StringUtils.isEmpty(appProperties.getProperty("OPENAI_API_KEY")));
+    config.put("chatGptEnabled", !StringUtils.isEmpty(appProperties.getProperty("openai.api.key")));
     config.put("cRaterRequestURL", contextPath + "/api/c-rater");
     config.put("importStepsURL",
         contextPath + "/api/author/project/importSteps/" + project.getId());

src/test/java/org/wise/portal/presentation/web/controllers/author/project/AuthorAPIControllerTest.java

@@ -80,7 +80,7 @@ public void getAuthorProjectConfig_HasProjectRun_ReturnCanGradeStudentWork() thr
     replay(request);
     expect(appProperties.getProperty("curriculum_base_www"))
         .andReturn("http://localhost:8080/curriculum");
-    expect(appProperties.getProperty("OPENAI_API_KEY")).andReturn("OPENAPIKEY");
+    expect(appProperties.getProperty("openai.api.key")).andReturn("OPENAPIKEY");
     replay(appProperties);
     Map<String, Object> config = authorAPIController.getAuthorProjectConfig(teacherAuth, request,
         project1);