评价本身也能填「观后感受」

- lib/db.php：reviews 表新增 feelings 列。建表语句里带上，同时补一条
  ALTER TABLE 迁移 —— 上一版已经上线过没有该列的 reviews 表，老库要能自动补列。
- lib/reviews.php：saveReview() 接收感受并落库；getMovieReviews()/getMyReview()
  把 feelings 解析成 key 列表（旧记录为 NULL → 空数组，不报错）。
- detail.php：评价表单加了「我看完的感受（可多选）」，与讨论用的是同一套感受；
  修改评价时原勾选自动回填，取消勾选即清空；已保存的感受在评价正文下方以只读标签展示。

感受仍然只存 key（happy/sad/…），emoji 与文案统一在 feelingCatalog() 里维护。

lib/reviews.php

@@ -115,6 +115,11 @@ function getMovieReviews($movie_id) {
     ");
     $stmt->execute([$movie_id]);
     $reviews = $stmt->fetchAll();
+    foreach ($reviews as &$review) {
+        // 评价本身带的观后感受（JSON 字符串 → key 列表）
+        $review['feelings'] = parseStoredFeelings($review['feelings'] ?? '');
+    }
+    unset($review);
     attachCommentsToReviews($reviews);
     return $reviews;
 }
@@ -155,6 +160,9 @@ function getMyReview($movie_id, $admin_id) {
     $stmt = $db->prepare("SELECT * FROM reviews WHERE movie_id = ? AND admin_id = ?");
     $stmt->execute([$movie_id, $admin_id]);
     $row = $stmt->fetch();
+    if ($row) {
+        $row['feelings'] = parseStoredFeelings($row['feelings'] ?? '');
+    }
     return $row ?: null;
 }
 
@@ -213,13 +221,15 @@ function attachReviewStatsToMovies(array &$movies) {
 
 /**
  * 发表 / 修改评价。一个账号对一部电影只保留一条：已有则更新，没有则插入。
+ * $feelings 是评价人自己选的观后感受 key 数组（可以为空）。
  * 调用前请自行校验 rating 在 1-10、content 非空且未超长。
  * 成功返回 true。
  */
-function saveReview($movie_id, $admin_id, $rating, $content) {
+function saveReview($movie_id, $admin_id, $rating, $content, array $feelings = []) {
     $db = getDB();
-    $rating  = (int)$rating;
-    $content = trim((string)$content);
+    $rating   = (int)$rating;
+    $content  = trim((string)$content);
+    $feelings = normalizeFeelings($feelings);
     if ($rating < 1 || $rating > 10 || $content === '' || (int)$admin_id <= 0) {
         return false;
     }
@@ -232,15 +242,16 @@ function saveReview($movie_id, $admin_id, $rating, $content) {
 
         if ($existing) {
             $stmt = $db->prepare("
-                UPDATE reviews SET rating = ?, content = ?, updated_at = CURRENT_TIMESTAMP
+                UPDATE reviews SET rating = ?, content = ?, feelings = ?, updated_at = CURRENT_TIMESTAMP
                 WHERE id = ?
             ");
-            $stmt->execute([$rating, $content, $existing['id']]);
+            $stmt->execute([$rating, $content, feelingsToJson($feelings), $existing['id']]);
         } else {
             $stmt = $db->prepare("
-                INSERT INTO reviews (movie_id, admin_id, rating, content) VALUES (?, ?, ?, ?)
+                INSERT INTO reviews (movie_id, admin_id, rating, content, feelings)
+                VALUES (?, ?, ?, ?, ?)
             ");
-            $stmt->execute([$movie_id, $admin_id, $rating, $content]);
+            $stmt->execute([$movie_id, $admin_id, $rating, $content, feelingsToJson($feelings)]);
         }
         $db->commit();
         return true;