backend/app/controllers/gekanator_games_controller.rb

@@ -27,12 +27,11 @@ class GekanatorGamesController < ApplicationController
     game = GekanatorGame.find_by(id: params[:id])
     return head :not_found unless game
 
-    asked_ids = Array(game.answers).filter_map { |answer|
-      answer['questionId'] || answer[:questionId]
-    }
+    asked_ids = Array(game.answers).filter_map { |answer| answer_question_id(answer) }
     existing_example_ids =
         GekanatorQuestionExample.where(post_id: game.correct_post_id)
                                 .select(:gekanator_question_id)
+    # Direct examples only for now; post_similarity-based expansion is deferred.
     questions =
         GekanatorQuestion
         .accepted
@@ -64,7 +63,7 @@ class GekanatorGamesController < ApplicationController
 
     answers = answer_params.map { |answer|
       {
-        question_id: answer.require(:question_id),
+        question_id: answer.require(:question_id).to_i,
         answer: answer.require(:answer)
       }
     }
@@ -107,4 +106,13 @@ class GekanatorGamesController < ApplicationController
       priority_weight: question.priority_weight
     }
   end
+
+  def answer_question_id answer
+    value = if answer.is_a?(Hash)
+      answer['question_id'].presence || answer[:question_id].presence ||
+        answer['questionId'].presence || answer[:questionId].presence
+    end
+
+    value&.to_s
+  end
 end

backend/app/services/gekanator/question_suggestion_promoter.rb

@@ -10,6 +10,7 @@ module Gekanator
     def call
       suggestion.with_lock do
         return promoted_question if suggestion.processed?
+        return suggestion if suggestion.answer == 'unknown'
 
         question = GekanatorQuestion.create!(
             text: suggestion.question_text,

backend/db/schema.rb

@@ -208,19 +208,6 @@ ActiveRecord::Schema[8.0].define(version: 2026_06_10_000000) do
     t.index ["target_post_id"], name: "index_post_similarities_on_target_post_id"
   end
 
-  create_table "post_tag_sections", primary_key: ["post_id", "tag_id", "begin_ms"], charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
-    t.bigint "post_id", null: false
-    t.bigint "tag_id", null: false
-    t.integer "begin_ms", null: false
-    t.integer "end_ms", null: false
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.index ["post_id", "begin_ms"], name: "idx_post_tag_sections_post_id_begin_ms"
-    t.index ["tag_id"], name: "fk_rails_8be3847903"
-    t.check_constraint "`begin_ms` < `end_ms`", name: "chk_post_tag_sections_end_ms_after_begin_ms"
-    t.check_constraint "`begin_ms` >= 0", name: "chk_post_tag_sections_begin_ms_natural"
-  end
-
   create_table "post_tags", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.bigint "post_id", null: false
     t.bigint "tag_id", null: false
@@ -271,11 +258,8 @@ ActiveRecord::Schema[8.0].define(version: 2026_06_10_000000) do
     t.datetime "original_created_before"
     t.datetime "updated_at", null: false
     t.integer "version_no", null: false
-    t.integer "video_ms"
     t.index ["uploaded_user_id"], name: "index_posts_on_uploaded_user_id"
     t.index ["url"], name: "index_posts_on_url", unique: true
-    t.index ["video_ms", "id"], name: "idx_posts_video_ms_id"
-    t.check_constraint "(`video_ms` is null) or (`video_ms` > 0)", name: "chk_posts_video_ms_positive"
     t.check_constraint "`version_no` > 0", name: "chk_posts_version_no_positive"
   end
 
@@ -426,7 +410,6 @@ ActiveRecord::Schema[8.0].define(version: 2026_06_10_000000) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.index ["expires_at"], name: "index_theatre_watching_users_on_expires_at"
-    t.index ["theatre_id", "expires_at"], name: "idx_on_theatre_id_skip_expires_at_4c8de1dd42"
     t.index ["theatre_id", "expires_at"], name: "index_theatre_watching_users_on_theatre_id_and_expires_at"
     t.index ["theatre_id"], name: "index_theatre_watching_users_on_theatre_id"
     t.index ["user_id"], name: "index_theatre_watching_users_on_user_id"
@@ -595,8 +578,6 @@ ActiveRecord::Schema[8.0].define(version: 2026_06_10_000000) do
   add_foreign_key "post_implications", "posts", column: "parent_post_id"
   add_foreign_key "post_similarities", "posts"
   add_foreign_key "post_similarities", "posts", column: "target_post_id"
-  add_foreign_key "post_tag_sections", "posts"
-  add_foreign_key "post_tag_sections", "tags"
   add_foreign_key "post_tags", "posts"
   add_foreign_key "post_tags", "tags"
   add_foreign_key "post_tags", "users", column: "created_user_id"

frontend/src/pages/GekanatorPage.tsx

@@ -449,9 +449,12 @@ const previewAnswer = ({
   const hardFilteredPosts =
       answer === 'unknown'
 	? posts
-	: posts.filter (post => expectedAnswerForQuestion (question, post) === answer)
+	: posts.filter (post => {
+	    const expected = expectedAnswerForQuestion (question, post)
+	    return expected === null || expected === 'unknown' || expected === answer
+	  })
   const nextPosts =
-      answer !== 'unknown' && hardFilteredPosts.length > 0
+      hardFilteredPosts.length > 0
 	? hardFilteredPosts
 	: posts
   const nextScores = new Map (scores)
@@ -1061,14 +1064,16 @@ const GekanatorPage: FC = () => {
       }})
   const questionSuggestionMutation = useMutation ({
       mutationFn: saveGekanatorQuestionSuggestion,
-      onSuccess: data => {
+      onSuccess: async data => {
+	await queryClient.refetchQueries ({ queryKey: gekanatorKeys.questions () })
 	setQuestionSuggestionCount (data.count)
 	setQuestionSuggestion ('')
 	setQuestionSuggestionAnswer ('yes')
       }})
   const extraQuestionAnswersMutation = useMutation ({
       mutationFn: saveGekanatorExtraQuestionAnswers,
-      onSuccess: () => {
+      onSuccess: async () => {
+	await queryClient.refetchQueries ({ queryKey: gekanatorKeys.questions () })
 	setExtraQuestionState ('saved')
 	setPhase ('learned')
       }})
@@ -1544,7 +1549,12 @@ const GekanatorPage: FC = () => {
 	? <>グカカカカwwwww  <ruby>洗澡鹿<rt>シーザオグカ</rt></ruby>は何でもお見通し!</>
 	: <>私は<ruby>洗澡鹿<rt>シーザオグカ</rt></ruby>．質問から投稿を何でも当ててみせるよ</>
   const introLoading = isLoading || acceptedQuestionsLoading
-  const readyToStart = !(introLoading) && acceptedQuestionsFetched && posts.length > 0
+  const readyToStart =
+      !(introLoading)
+      && acceptedQuestionsFetched
+      && posts.length > 0
+      && !(error)
+      && !(acceptedQuestionsError)
 
   return (
       <MainArea className="bg-yellow-50 dark:bg-red-975">