M2b：删除旧 chat 体系——线性会话/叩心/情绪/纪念日模型与页面退役（迁移 003 双向验证），runs 去会话外键，测试全量修剪

backend/app/services/characters.py

@@ -10,7 +10,6 @@ from app.core.time import utc_now
 from app.db.session import AsyncSessionLocal
 from app.models.character import Character
 from app.models.personality import PersonalityVersion
-from app.models.time_anniversary import TimeAnniversary
 from app.modules.character import (
     MODEL_POLICY_CREATE_DEFAULTS,
     SYSTEM_TEMPLATE_OWNER_SCOPE,
@@ -19,7 +18,6 @@ from app.modules.character import (
 )
 from app.repositories import characters as character_repo
 from app.repositories import personality as personality_repo
-from app.repositories import time_anniversaries as anniversary_repo
 from app.repositories.json_utils import dumps, loads_dict
 from app.schemas.character import (
     ActivateCharacterResponse,
@@ -232,7 +230,7 @@ async def create_character_from_template(
     session: AsyncSession, template: Character, owner_scope: str
 ) -> Character:
     # 模板的 birthday 仅在兜底（空/缺失）时不继承；显式设置的有效生日原样保留，
-    # 由 _ensure_default_birthday 写入子角色的 profile 与 time_anniversaries 表。
+    # 由 _ensure_default_birthday 写入子角色的 profile。
     profile = loads_dict(template.profile_json)
     birthday = profile.get("birthday")
     if not (isinstance(birthday, str) and birthday.strip()):
@@ -388,51 +386,17 @@ async def _audit_character(session: AsyncSession, character: Character, action:
 
 
 async def _ensure_default_birthday(session: AsyncSession, character: Character) -> None:
-    """birthday 缺失时用 created_at 兜底：写 profile.birthday 并建一条生日纪念日。
+    """birthday 缺失时用 created_at 兜底：仅写 profile.birthday。
 
-    - 仅在 profile.birthday 为空/缺失时触发默认兜底；用户或模板已设则不覆盖。
-    - 无论 birthday 是否已设，只要角色尚无 birthday 纪念日，就建一条。
-    - profile.birthday 与 TimeAnniversary.date 取 birthday 值（显式）或 created_at 的 ISO 日期。
-    - 须在 character flush 后调用（依赖 id 与 created_at）；同一事务内随外层 commit 落库。
+    纪念日表（time_anniversaries）随旧时间模型退役删除；辰正（M8 重实现）落地后
+    生日提醒改由时态感知按 profile.birthday 计算，不再预写行。
     """
     profile = loads_dict(character.profile_json)
     birthday = profile.get("birthday")
     if isinstance(birthday, str) and birthday.strip():
-        # birthday 已设但可能无对应纪念日（如从模板继承），仅 ISO 格式生日补建
-        existing = await anniversary_repo.list_anniversaries(session, character.id)
-        if not any(a.kind == "birthday" for a in existing):
-            try:
-                datetime.strptime(birthday, "%Y-%m-%d")
-            except (ValueError, TypeError):
-                pass
-            else:
-                anniversary = TimeAnniversary(
-                    character_id=character.id,
-                    name=f"{character.display_name or character.name}·生辰",
-                    calendar="solar",
-                    date=birthday,
-                    recurs_yearly=True,
-                    kind="birthday",
-                    subject_type="character_self",
-                    source="auto",
-                )
-                await anniversary_repo.create_anniversary(session, anniversary)
         return
-    birthday_iso = character.created_at.strftime("%Y-%m-%d")
-    profile["birthday"] = birthday_iso
+    profile["birthday"] = character.created_at.strftime("%Y-%m-%d")
     character.profile_json = dumps(profile)
-    anniversary = TimeAnniversary(
-        character_id=character.id,
-        name=f"{character.display_name or character.name}·生辰",
-        calendar="solar",
-        date=birthday_iso,
-        recurs_yearly=True,
-        kind="birthday",
-        subject_type="character_self",
-        source="auto",
-    )
-    await anniversary_repo.create_anniversary(session, anniversary)
-
 
 async def create_character(
     session: AsyncSession,