feat: 回忆录证据血缘与内部评测可追溯，顺带对齐本地评测台与 CI

数据库与模型：新增多版迁移（章节证据快照、对话血缘、记忆事实/时间线 lineage 等），把「成稿 ↔ 对话/记忆」的溯源信息落到表结构里。
业务链路：会话与 WS、回忆录/故事流水线、记忆写入与 enrichment 等跟着接上线索与快照；新增章节证据快照与评测侧 EvalTraceService 等模块，方便组评审用的证据包。
内部评测：自动化 run 与手工 memoir 评审共用可追溯证据；rubric/ judge 相关脚本与文档有配套调整。
app-eval-web：Memoir/实验详情里能展开看证据摘要与 evidence_trace（含对话轮次 id）；Vite 代理与 development.sh 注入的 API 端口与当前默认内部评测端口一致，避免改端口后页面连错服务。
工程杂项：GitHub Actions / 仓库说明有更新；各适配器与支付/配额/plan 等多处为小改动或跟随主改动的收尾；新增/扩充了?

api/app/features/quota/service.py

@@ -2,6 +2,8 @@
 配额检查业务逻辑。
 
 「对话轮数」的定义：每条用户发出的消息（Segment 表的记录数）计为 1 轮。
+
+限额与 [app.features.plan.catalog](catalog) 中的套餐定义一致，单一事实来源。
 """
 
 from sqlalchemy import func, select
@@ -9,36 +11,9 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.features.conversation.models import Conversation, Segment
 from app.features.memoir.models import Chapter
+from app.features.plan.catalog import get_plan_by_type
 from app.features.quota.schemas import QuotaCheckResponse
 
-PLAN_QUOTAS = {
-    "free": {
-        "max_conversations": 50,
-        "max_chapters": 1,
-        "max_words": None,
-    },
-    "pro": {
-        "max_conversations": 2000,
-        "max_chapters": None,
-        "max_words": None,
-    },
-    "pro_plus": {
-        "max_conversations": 10000,
-        "max_chapters": None,
-        "max_words": None,
-    },
-    "premium": {
-        "max_conversations": None,
-        "max_chapters": None,
-        "max_words": None,
-    },
-    "test": {
-        "max_conversations": None,
-        "max_chapters": None,
-        "max_words": None,
-    },
-}
-
 
 async def get_segment_count(user_id: str, db: AsyncSession) -> int:
     """获取用户已消耗的对话轮数（= 该用户所有 Segment 记录数）。"""
@@ -71,8 +46,8 @@ def check_can_send_message(
     segment_count: int,
 ) -> tuple[bool, str]:
     """检查用户是否还能发送消息（对话轮数）。返回 (是否允许, 提示信息)。"""
-    quotas = PLAN_QUOTAS.get(subscription_type, PLAN_QUOTAS["free"])
-    max_conv = quotas.get("max_conversations")
+    plan = get_plan_by_type(subscription_type)
+    max_conv = plan.max_conversations
     if max_conv is None:
         return True, ""
     if segment_count >= max_conv:
@@ -88,8 +63,8 @@ def check_can_submit_organize(
     chapter_count: int,
 ) -> tuple[bool, str]:
     """检查是否可以提交整理任务（生成新章节）。免费版仅允许 1 个章节。"""
-    quotas = PLAN_QUOTAS.get(subscription_type, PLAN_QUOTAS["free"])
-    max_ch = quotas.get("max_chapters")
+    plan = get_plan_by_type(subscription_type)
+    max_ch = plan.max_chapters
     if max_ch is None:
         return True, ""
     if chapter_count >= max_ch:
@@ -123,11 +98,10 @@ class QuotaService:
 
     async def check(self, user_id: str, subscription_type: str) -> QuotaCheckResponse:
         """检查用户配额使用情况。"""
-        quotas = PLAN_QUOTAS.get(subscription_type, PLAN_QUOTAS["free"])
+        plan = get_plan_by_type(subscription_type)
         segment_count, chapter_count = await self.get_usage(user_id)
-        max_conversations = quotas.get("max_conversations")
-        max_chapters = quotas.get("max_chapters")
-        max_words = quotas.get("max_words")
+        max_conversations = plan.max_conversations
+        max_chapters = plan.max_chapters
 
         remaining_conversations = None
         remaining_chapters = None