feat: 重构 PDF/文献检索同步机制、升级引力图交互与控制台 UI 样式

- [后端/PDF解析] 重构 MinerU PDF 解析流程：引入预签名两阶段直传机制，解决大文件 API 传输限制问题；支持轮询机制与本地 images 备用目录存储。
- [后端/同步与下载] 新增经典 ADS SCAN 扫描件 PDF 和 ADS_PDF 直接通道的下载逻辑；新增常用同步检索配置的持久化存储与去重管理 API。
- [后端/日志] 重构日志系统，支持控制台 pretty 输出与每日滚动文件日志（使用上海 +08:00 时区），引入 HTTP 路由请求链路追踪。
- [前端/引力图] 升级引用星系图 canvas 交互：支持平移拖拽与滚轮缩放，添加引力圈轨道装饰及未导入文献的半透明视觉区分。
- [前端/控制台] 统一重构为扁平高对比度浅色纯中文控制台样式；重新设计文献详情弹窗与状态进度条。
- [数据库] 新增 papers 表的 doctype 字段及 sync_queries 检索配置表。

Cargo.toml

@@ -10,10 +10,14 @@ path = "src/lib.rs"
 name = "astroresearch"
 path = "src/main.rs"
 
+[[bin]]
+name = "test_qiniu"
+path = "scratch/test_qiniu.rs"
+
 [dependencies]
 tokio = { version = "1", features = ["full"] }
 axum = { version = "0.7", features = ["macros"] }
-tower-http = { version = "0.5", features = ["cors", "fs"] }
+tower-http = { version = "0.5", features = ["cors", "fs", "trace"] }
 sqlx = { version = "0.7", features = ["runtime-tokio-rustls", "sqlite", "chrono", "json"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
@@ -23,7 +27,7 @@ quick-xml = { version = "0.31", features = ["serialize"] }
 anyhow = "1.0"
 thiserror = "1.0"
 tracing = "0.1"
-tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+tracing-subscriber = { version = "0.3", features = ["env-filter", "json"] }
 futures-util = { version = "0.3", features = ["io"] }
 rand = "0.8"
 regex = "1.10"
@@ -34,3 +38,7 @@ base64 = "0.22"
 urlencoding = "2.1"
 url = "2.5"
 html2md = "0.2"
+flate2 = "1.1.9"
+zip = "8.6.0"
+uuid = { version = "1.23.2", features = ["v4"] }
+tracing-appender = "0.2.5"