chore: resolve WIP after merging internal/development

- .gitignore: keep api/uploads ignore and copyright_source_listing.pdf path

- auth: keep COS avatar upload URL; delete prior COS object when applying preset

- i18n: regenerate resources.ts (includes profile tapAwayToClose)

- Avatar/COS tests and personal-info remain from prior local work

Co-authored-by: Cursor <cursoragent@cursor.com>

api/app/core/cos_url_keys.py

@@ -14,6 +14,9 @@ logger = get_logger(__name__)
 # 客户端再读 TTS / 拉取音频：预签名有效期（秒），与移动端会话长度匹配
 TTS_PRESIGNED_EXPIRES_SEC = 86_400
 
+# 用户头像 API 下发（与 TTS 一致）
+AVATAR_PRESIGNED_EXPIRES_SEC = TTS_PRESIGNED_EXPIRES_SEC
+
 
 def extract_cos_object_key_if_owned(url: str | None) -> str | None:
     """
@@ -119,3 +122,50 @@ def presign_tts_urls_for_playback(
         else:
             out.append(s)
     return out
+
+
+def avatar_url_for_api_response(stored_url: str | None) -> str | None:
+    """DB 中的头像 URL：本环境 COS 直链改为预签名下载 URL。"""
+    if stored_url is None:
+        return None
+    s = str(stored_url).strip()
+    if not s:
+        return None
+    key = extract_cos_object_key_if_owned(s)
+    if not key:
+        return s
+    if not (
+        (settings.tencent_cos_secret_id or "").strip()
+        and (settings.tencent_cos_bucket or "").strip()
+    ):
+        return s
+    from app.core.dependencies import get_object_storage
+
+    storage = get_object_storage()
+    try:
+        return storage.get_url(key, expires=AVATAR_PRESIGNED_EXPIRES_SEC)
+    except Exception as exc:
+        logger.warning(
+            "presign avatar url failed, keeping original: key={} err={}",
+            key,
+            exc,
+        )
+        return s
+
+
+def best_effort_delete_cos_object_for_url(url: str | None) -> None:
+    """本环境 COS 对象则尽力 delete（换头像 / 预设时清理）。"""
+    key = extract_cos_object_key_if_owned(url)
+    if not key:
+        return
+    if not (
+        (settings.tencent_cos_secret_id or "").strip()
+        and (settings.tencent_cos_bucket or "").strip()
+    ):
+        return
+    from app.core.dependencies import get_object_storage
+
+    try:
+        get_object_storage().delete(key)
+    except Exception as exc:
+        logger.warning("delete cos avatar object failed: key={} err={}", key, exc)