feat: initial commit - oncology literature search platform

OncoLit: a multi-tenant oncology literature search, feed, and
collaboration platform. Built with FastAPI + Vue 3 + PostgreSQL.
Includes PubMed pipeline, drug approvals, AI summaries, and
systematic review tools.

deploy.env.example

@@ -0,0 +1,14 @@
+# ═══════════════════════════════════════════════════════════════════
+# SciLit — 部署配置（供 deploy.sh 使用）
+# ═══════════════════════════════════════════════════════════════════
+#
+# 复制为 deploy.env，填入实际值，不要提交到 git：
+#   cp deploy.env.example deploy.env
+#
+# 然后在 deploy.env 同目录运行：
+#   source deploy.env && ./deploy.sh
+
+# 服务器 SSH 信息
+SCILIT_HOST=your-server.com
+SCILIT_USER=root
+SCILIT_PATH=/root/scilit-oncology