feat: add compare, trends routes, embedder service, and phase5 tests

app/main.py

@@ -5,13 +5,16 @@ import os
 
 from fastapi import FastAPI
 from fastapi.staticfiles import StaticFiles
+from starlette.staticfiles import StaticFiles as StarletteStaticFiles
 
 from app.config import settings
 from app.database import engine
 from app.models import init_db
 from app.routes.admin import router as admin_router
+from app.routes.compare import router as compare_router
 from app.routes.pages import router as pages_router
 from app.routes.search import router as search_router
+from app.routes.trends import router as trends_router
 from app.routes.user import router as user_router
 
 logging.basicConfig(
@@ -49,11 +52,18 @@ def create_app() -> FastAPI:
     # 静态文件
     app.mount("/static", StaticFiles(directory="app/static"), name="static")
 
+    # Phase 5: 论文图片静态服务
+    papers_images_dir = os.path.join("data", "papers")
+    os.makedirs(papers_images_dir, exist_ok=True)
+    app.mount("/papers", StaticFiles(directory=papers_images_dir), name="papers")
+
     # 路由
     app.include_router(pages_router)
     app.include_router(admin_router)
     app.include_router(search_router)
     app.include_router(user_router)
+    app.include_router(trends_router)
+    app.include_router(compare_router)
 
     # 调度器（Phase 4）
     @app.on_event("startup")
@@ -61,6 +71,12 @@ def create_app() -> FastAPI:
         from app.services.scheduler import start_scheduler
         start_scheduler()
 
+    # Phase 5: 初始化 ChromaDB
+    @app.on_event("startup")
+    async def _init_chroma():
+        from app.services.embedder import init_chroma
+        init_chroma()
+
     @app.on_event("shutdown")
     async def _stop_scheduler():
         from app.services.scheduler import stop_scheduler