refactor: 教学版移除全平台用户个人信息采集与持久化

- 用户 ID 转为匿名 creator_hash，昵称中间脱敏，IP/头像/主页/签名/性别不再采集
- 覆盖 xhs/weibo/bilibili/douyin/kuaishou/tieba/zhihu 7 个平台
- 删除 7 张 creator 档案 ORM 表，15 张内容/评论表新增 creator_hash 列
- B 站禁用粉丝/关注/联系人列表抓取
- 新增 tools/user_hash.py 与 4 个平台的 mock+SQLite 端到端测试

测试: pytest tests/test_no_user_info.py tests/test_weibo_no_user_info.py tests/test_douyin_no_user_info.py tests/test_kuaishou_no_user_info.py (21 passed)

model/m_baidu_tieba.py

@@ -33,14 +33,12 @@ class TiebaNote(BaseModel):
     desc: str = Field(default="", description="Post description")
     note_url: str = Field(..., description="Post link")
     publish_time: str = Field(default="", description="Publish time")
-    user_link: str = Field(default="", description="User homepage link")
-    user_nickname: str = Field(default="", description="User nickname")
-    user_avatar: str = Field(default="", description="User avatar URL")
+    creator_hash: str = Field(default="", description="创作者匿名哈希(不存原始用户链接)")
+    user_nickname: str = Field(default="", description="User nickname (已脱敏)")
     tieba_name: str = Field(..., description="Tieba name")
     tieba_link: str = Field(..., description="Tieba link")
     total_replay_num: int = Field(default=0, description="Total reply count")
     total_replay_page: int = Field(default=0, description="Total reply pages")
-    ip_location: Optional[str] = Field(default="", description="IP location")
     source_keyword: str = Field(default="", description="Source keyword")
 
 
@@ -52,11 +50,9 @@ class TiebaComment(BaseModel):
     comment_id: str = Field(..., description="Comment ID")
     parent_comment_id: str = Field(default="", description="Parent comment ID")
     content: str = Field(..., description="Comment content")
-    user_link: str = Field(default="", description="User homepage link")
-    user_nickname: str = Field(default="", description="User nickname")
-    user_avatar: str = Field(default="", description="User avatar URL")
+    creator_hash: str = Field(default="", description="创作者匿名哈希(不存原始用户链接)")
+    user_nickname: str = Field(default="", description="User nickname (已脱敏)")
     publish_time: str = Field(default="", description="Publish time")
-    ip_location: Optional[str] = Field(default="", description="IP location")
     sub_comment_count: int = Field(default=0, description="Sub-comment count")
     note_id: str = Field(..., description="Post ID")
     note_url: str = Field(..., description="Post link")
@@ -67,14 +63,10 @@ class TiebaComment(BaseModel):
 
 class TiebaCreator(BaseModel):
     """
-    Baidu Tieba creator
+    Baidu Tieba creator（教学版：个人资料不再落库，仅作内存对象）
     """
-    user_id: str = Field(..., description="User ID")
-    user_name: str = Field(..., description="Username")
-    nickname: str = Field(..., description="User nickname")
-    gender: str = Field(default="", description="User gender")
-    avatar: str = Field(..., description="User avatar URL")
-    ip_location: Optional[str] = Field(default="", description="IP location")
+    creator_hash: str = Field(default="", description="创作者匿名哈希(不存原始用户链接)")
+    user_nickname: str = Field(default="", description="User nickname (已脱敏)")
     follows: int = Field(default=0, description="Follows count")
     fans: int = Field(default=0, description="Fans count")
     registration_duration: str = Field(default="", description="Registration duration")

model/m_zhihu.py

@@ -19,8 +19,6 @@
 
 
 # -*- coding: utf-8 -*-
-from typing import Optional
-
 from pydantic import BaseModel, Field
 
 
@@ -40,12 +38,8 @@ class ZhihuContent(BaseModel):
     voteup_count: int = Field(default=0, description="Upvote count")
     comment_count: int = Field(default=0, description="Comment count")
     source_keyword: str = Field(default="", description="Source keyword")
-
-    user_id: str = Field(default="", description="User ID")
-    user_link: str = Field(default="", description="User homepage link")
-    user_nickname: str = Field(default="", description="User nickname")
-    user_avatar: str = Field(default="", description="User avatar URL")
-    user_url_token: str = Field(default="", description="User url_token")
+    creator_hash: str = Field(default="", description="Creator anonymized hash")
+    user_nickname: str = Field(default="", description="User nickname (masked)")
 
 
 class ZhihuComment(BaseModel):
@@ -57,30 +51,21 @@ class ZhihuComment(BaseModel):
     parent_comment_id: str = Field(default="", description="Parent comment ID")
     content: str = Field(default="", description="Comment content")
     publish_time: int = Field(default=0, description="Publish time")
-    ip_location: Optional[str] = Field(default="", description="IP location")
     sub_comment_count: int = Field(default=0, description="Sub-comment count")
     like_count: int = Field(default=0, description="Like count")
     dislike_count: int = Field(default=0, description="Dislike count")
     content_id: str = Field(default="", description="Content ID")
     content_type: str = Field(default="", description="Content type (article | answer | zvideo)")
-
-    user_id: str = Field(default="", description="User ID")
-    user_link: str = Field(default="", description="User homepage link")
-    user_nickname: str = Field(default="", description="User nickname")
-    user_avatar: str = Field(default="", description="User avatar URL")
+    creator_hash: str = Field(default="", description="Creator anonymized hash")
+    user_nickname: str = Field(default="", description="User nickname (masked)")
 
 
 class ZhihuCreator(BaseModel):
     """
-    Zhihu creator
+    Zhihu creator (in-memory only; personal profile is no longer persisted)
     """
-    user_id: str = Field(default="", description="User ID")
-    user_link: str = Field(default="", description="User homepage link")
-    user_nickname: str = Field(default="", description="User nickname")
-    user_avatar: str = Field(default="", description="User avatar URL")
-    url_token: str = Field(default="", description="User url_token")
-    gender: str = Field(default="", description="User gender")
-    ip_location: Optional[str] = Field(default="", description="IP location")
+    creator_hash: str = Field(default="", description="Creator anonymized hash")
+    user_nickname: str = Field(default="", description="User nickname (masked)")
     follows: int = Field(default=0, description="Follows count")
     fans: int = Field(default=0, description="Fans count")
     anwser_count: int = Field(default=0, description="Answer count")