fix(backend): correct response schema of chat endpoints

[zyoshoka]

What

チャット関連の API エンドポイントで 204 を返すものが、OpenAPI ドキュメントでは 200 を返すものと書かれてしまっている問題を修正します。

Why

API ドキュメント改善

Additional info (optional)

Checklist

• Read the contribution guide
• Test working in a local environment
• (If needed) Add story of storybook
• (If needed) Update CHANGELOG.md
• (If possible) Add tests

[syuilo]

🙏

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 44.44%. Comparing base (c3b9a53) to head (480d546).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #15904      +/-   ##
===========================================
+ Coverage    42.45%   44.44%   +1.98%     
===========================================
  Files         1695     1699       +4     
  Lines       172023   178232    +6209     
  Branches      4229     4265      +36     
===========================================
+ Hits         73040    79218    +6178     
+ Misses       98522    98520       -2     
- Partials       461      494      +33     

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[github-actions]

このPRによるapi.jsonの差分

差分はこちら

--- base
+++ head
@@ -32067,13 +32067,8 @@
           }
         },
         "responses": {
-          "200": {
-            "description": "OK (with results)",
-            "content": {
-              "application/json": {
-                "schema": {}
-              }
-            }
+          "204": {
+            "description": "OK (without any results)"
           },
           "400": {
             "description": "Client error",
@@ -32233,13 +32228,8 @@
           }
         },
         "responses": {
-          "200": {
-            "description": "OK (with results)",
-            "content": {
-              "application/json": {
-                "schema": {}
-              }
-            }
+          "204": {
+            "description": "OK (without any results)"
           },
           "400": {
             "description": "Client error",
@@ -32935,13 +32925,8 @@
           }
         },
         "responses": {
-          "200": {
-            "description": "OK (with results)",
-            "content": {
-              "application/json": {
-                "schema": {}
-              }
-            }
+          "204": {
+            "description": "OK (without any results)"
           },
           "400": {
             "description": "Client error",
@@ -33460,13 +33445,8 @@
           }
         },
         "responses": {
-          "200": {
-            "description": "OK (with results)",
-            "content": {
-              "application/json": {
-                "schema": {}
-              }
-            }
+          "204": {
+            "description": "OK (without any results)"
           },
           "400": {
             "description": "Client error",
@@ -33813,13 +33793,8 @@
           }
         },
         "responses": {
-          "200": {
-            "description": "OK (with results)",
-            "content": {
-              "application/json": {
-                "schema": {}
-              }
-            }
+          "204": {
+            "description": "OK (without any results)"
           },
           "400": {
             "description": "Client error",
@@ -34323,13 +34298,8 @@
           }
         },
         "responses": {
-          "200": {
-            "description": "OK (with results)",
-            "content": {
-              "application/json": {
-                "schema": {}
-              }
-            }
+          "204": {
+            "description": "OK (without any results)"
           },
           "400": {
             "description": "Client error",
@@ -34651,13 +34621,8 @@
           }
         },
         "responses": {
-          "200": {
-            "description": "OK (with results)",
-            "content": {
-              "application/json": {
-                "schema": {}
-              }
-            }
+          "204": {
+            "description": "OK (without any results)"
           },
           "400": {
             "description": "Client error",
@@ -34999,13 +34964,8 @@
           }
         },
         "responses": {
-          "200": {
-            "description": "OK (with results)",
-            "content": {
-              "application/json": {
-                "schema": {}
-              }
-            }
+          "204": {
+            "description": "OK (without any results)"
           },
           "400": {
             "description": "Client error",

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