feat: 添加译文功能 + Attention Is All You Need 中文译本

api/server.py

@@ -464,6 +464,24 @@ def download_single_pdf(arxiv_id: str):
     except subprocess.TimeoutExpired:
         return {"ok": False, "arxiv_id": arxiv_id, "status": "timeout"}
 
+# ─── Routes: Translated PDFs ────────────────────────────
+TRANSLATED_DIR = PAPERS_DIR / "translated"
+
+@app.get("/api/translated/{arxiv_id}")
+def check_translation(arxiv_id: str):
+    """Check if translation exists for a paper"""
+    fn = f"{arxiv_id}.pdf"
+    return {"arxiv_id": arxiv_id, "exists": (TRANSLATED_DIR / fn).exists()}
+
+@app.get("/papers/translated/{arxiv_id}.pdf")
+def serve_translated(arxiv_id: str):
+    """Serve translated PDF from cache"""
+    fp = TRANSLATED_DIR / f"{arxiv_id}.pdf"
+    if not fp.exists():
+        raise HTTPException(status_code=404, detail="Translation not found")
+    return FileResponse(fp, media_type="application/pdf",
+        headers={"Content-Disposition": "inline"})
+
 # ─── Health ─────────────────────────────────────────────
 @app.get("/api/health")
 def health():

requirements.txt

@@ -5,4 +5,4 @@ pydantic>=2.10
 python-multipart>=0.0.19
 aiofiles>=24.0
 tqdm>=4.66
-PyMuPDF>=1.24
+fpdf2>=2.7

static/app.js

@@ -151,6 +151,7 @@ function renderPaper(p) {
   const links = [];
   if (pdfUrl) links.push(`<button class="paper-link" data-pdf="${encodeURIComponent(pdfUrl)}" data-title="${encodeURIComponent(p.title)}" onclick="openPdfBtn(this)">📄 阅读</button>`);
   else if (p.arxiv) links.push(`<a class="paper-link" href="https://arxiv.org/abs/${p.arxiv}" target="_blank">📋 arXiv</a>`);
+  if (p.arxiv) links.push(`<a class="paper-link trans-btn" href="/papers/translated/${p.arxiv}.pdf" target="_blank" title="中文译文">📖 译文</a>`);
   return `<div class="paper-item"><div class="paper-year">${p.year||'—'}</div><div class="paper-body" id="${id}">
     <div class="paper-title">${p.title}</div>
     <div class="paper-meta"><span>${p.authors||''}</span>${p.venue?`<span class="paper-venue">${p.venue}</span>`:''}${tags}</div>

static/index.html

@@ -183,6 +183,7 @@ function renderPaper(p) {
   const links = [];
   if (pdfUrl) links.push(`<button class="paper-link" data-pdf="${encodeURIComponent(pdfUrl)}" data-title="${encodeURIComponent(p.title)}" onclick="openPdfBtn(this)">📄 阅读</button>`);
   else if (p.arxiv) links.push(`<a class="paper-link" href="https://arxiv.org/abs/${p.arxiv}" target="_blank">📋 arXiv</a>`);
+  if (p.arxiv) links.push(`<a class="paper-link trans-btn" href="/papers/translated/${p.arxiv}.pdf" target="_blank" title="中文译文">📖 译文</a>`);
   return `<div class="paper-item"><div class="paper-year">${p.year||'—'}</div><div class="paper-body" id="${id}">
     <div class="paper-title">${p.title}</div>
     <div class="paper-meta"><span>${p.authors||''}</span>${p.venue?`<span class="paper-venue">${p.venue}</span>`:''}${tags}</div>