feat(achievement): 成就图标从 emoji 换成 iconify 图标名

机房的老浏览器缺 emoji 字体，成就图标会渲染成方块。改存 iconify
图标名（noto 集，Noto Color Emoji 的 SVG 版），前端渲染成 SVG，
和浏览器字体无关，视觉上与原 emoji 基本一致。

隐藏成就的遮罩图标一并改成 noto:red-question-mark。

迁移 0002 带 77 条 emoji → noto 映射，覆盖首批成就用到的全部图标；
表里没有的保持原值，前端按纯文本兜底，之后在后台手工补。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

achievement/migrations/0002_emoji_icon_to_iconify.py

@@ -0,0 +1,123 @@
+"""把 Achievement.icon 从 emoji 字符换成 iconify 图标名。
+
+机房里的 Chrome 91 之类的老浏览器缺 emoji 字体，emoji 会渲染成方块。
+iconify 出来的是 SVG，跟浏览器字体无关。
+
+映射到 noto（Noto Color Emoji 的 SVG 版），视觉上和原 emoji 基本一致。
+表里没有的 emoji 保持原值不动，前端会按纯文本兜底渲染，之后在管理后台手工补。
+"""
+
+from django.db import migrations
+
+# 带 ️（variation selector-16）的 emoji 后台可能存成带或不带两种形态，
+# 迁移时统一去掉再查表，所以这里的 key 一律不带 ️
+EMOJI_TO_ICONIFY = {
+    # 计划里首批成就用到的
+    "🌱": "noto:seedling",
+    "📗": "noto:green-book",
+    "📚": "noto:books",
+    "📅": "noto:calendar",
+    "🗓": "noto:spiral-calendar",
+    "🌐": "noto:globe-with-meridians",
+    "🎖": "noto:military-medal",
+    "🎯": "noto:direct-hit",
+    "🏹": "noto:bow-and-arrow",
+    "🦉": "noto:owl",
+    "🌙": "noto:crescent-moon",
+    "💥": "noto:collision",
+    "🔥": "noto:fire",
+    "⚡": "noto:high-voltage",
+    "✂": "noto:scissors",
+    "📜": "noto:scroll",
+    "💎": "noto:gem-stone",
+    "🏆": "noto:trophy",
+    "❓": "noto:red-question-mark",
+    # 其余常用图标，后台可能已经用上了
+    "❔": "noto:white-question-mark",
+    "📖": "noto:open-book",
+    "🥇": "noto:1st-place-medal",
+    "🥈": "noto:2nd-place-medal",
+    "🥉": "noto:3rd-place-medal",
+    "🏅": "noto:sports-medal",
+    "⭐": "noto:star",
+    "🌟": "noto:glowing-star",
+    "✨": "noto:sparkles",
+    "🎉": "noto:party-popper",
+    "🎊": "noto:confetti-ball",
+    "🚀": "noto:rocket",
+    "💡": "noto:light-bulb",
+    "🐛": "noto:bug",
+    "👑": "noto:crown",
+    "🥷": "noto:ninja",
+    "🧠": "noto:brain",
+    "💪": "noto:flexed-biceps",
+    "🎓": "noto:graduation-cap",
+    "📈": "noto:chart-increasing",
+    "🎁": "noto:wrapped-gift",
+    "🔮": "noto:crystal-ball",
+    "🦄": "noto:unicorn",
+    "🐢": "noto:turtle",
+    "☕": "noto:hot-beverage",
+    "🌈": "noto:rainbow",
+    "⏰": "noto:alarm-clock",
+    "📝": "noto:memo",
+    "✅": "noto:check-mark-button",
+    "🔒": "noto:locked",
+    "🎮": "noto:video-game",
+    "🧩": "noto:puzzle-piece",
+    "🔧": "noto:wrench",
+    "🐍": "noto:snake",
+    "💻": "noto:laptop",
+    "⌨": "noto:keyboard",
+    "☀": "noto:sun",
+    "😴": "noto:sleeping-face",
+    "🤖": "noto:robot",
+    "🔍": "noto:magnifying-glass-tilted-left",
+    "🎨": "noto:artist-palette",
+    "⚔": "noto:crossed-swords",
+    "🛡": "noto:shield",
+    "🏰": "noto:castle",
+    "🗿": "noto:moai",
+    "🌊": "noto:water-wave",
+    "🍀": "noto:four-leaf-clover",
+    "🔁": "noto:repeat-button",
+    "🎪": "noto:circus-tent",
+    "🦅": "noto:eagle",
+    "🐉": "noto:dragon",
+    "💫": "noto:dizzy",
+    "🧭": "noto:compass",
+    "🪄": "noto:magic-wand",
+    "🔔": "noto:bell",
+    "📌": "noto:pushpin",
+    "🏁": "noto:chequered-flag",
+    "🎢": "noto:roller-coaster",
+}
+
+ICONIFY_TO_EMOJI = {v: k for k, v in EMOJI_TO_ICONIFY.items()}
+
+
+def _convert(apps, schema_editor, table):
+    Achievement = apps.get_model("achievement", "Achievement")
+    updated = []
+    for a in Achievement.objects.all():
+        key = (a.icon or "").replace("️", "").strip()
+        new = table.get(key)
+        if new and new != a.icon:
+            a.icon = new
+            updated.append(a)
+    if updated:
+        Achievement.objects.bulk_update(updated, ["icon"])
+
+
+def emoji_to_iconify(apps, schema_editor):
+    _convert(apps, schema_editor, EMOJI_TO_ICONIFY)
+
+
+def iconify_to_emoji(apps, schema_editor):
+    _convert(apps, schema_editor, ICONIFY_TO_EMOJI)
+
+
+class Migration(migrations.Migration):
+    dependencies = [("achievement", "0001_initial")]
+
+    operations = [migrations.RunPython(emoji_to_iconify, iconify_to_emoji)]

achievement/models.py

@@ -19,6 +19,8 @@ class Operator(models.TextChoices):
 class Achievement(models.Model):
     name = models.TextField(verbose_name="成就名称")
     description = models.TextField(verbose_name="成就描述")
+    # iconify 图标名（如 noto:owl），不是 emoji 字符：
+    # 机房的老浏览器缺 emoji 字体会渲染成方块，前端统一渲染成 SVG
     icon = models.TextField(verbose_name="图标")
     rarity = models.TextField(default=Rarity.BRONZE, choices=Rarity.choices, verbose_name="稀有度")
     hidden = models.BooleanField(default=False, db_default=False, verbose_name="是否隐藏")

achievement/serializers.py

@@ -63,7 +63,9 @@ class AchievementSerializer(serializers.ModelSerializer):
         return "达成条件保密" if self._masked(obj) else obj.description
 
     def get_icon(self, obj):
-        return "❓" if self._masked(obj) else obj.icon
+        # icon 存的是 iconify 图标名，不是 emoji 字符：机房里的老浏览器缺 emoji
+        # 字体会渲染成方块，前端统一按 iconify 渲染成 SVG
+        return "noto:red-question-mark" if self._masked(obj) else obj.icon
 
     def get_metric(self, obj):
         return None if self._masked(obj) else obj.metric