feat(project): 初始化项目结构和配置

- 添加.gitignore和.flaskenv环境配置文件
- 创建Flask应用基础架构，包括models、services、utils模块
- 配置数据库模型User和Setting，集成SQLAlchemy和Alembic迁移
- 添加前端Vue项目结构，包含Element Plus组件库
- 配置前后端API路由和蓝prints模块
- 实现书籍下载服务BookService功能模块
- 添加代码规范配置.editorconfig、.oxfmtrc.json、.oxlintrc.json
- 配置VSCode推荐插件和前端构建工具链
- 实现文件服务FileService和相关业务逻辑

app/static/setting.json

@@ -0,0 +1,14 @@
+{
+    "mod": "forumdisplay",
+    "fid": "139",
+    "orderby": "dateline",
+    "baseUrl": "http://127.0.0.1:20000/",
+    "targetDate": "2026-03-23",
+    "targetCountdownPage": 998,
+    "totalPage": 999,
+    "privilegeLevel": 20,
+    "headers": {
+        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36",
+        "cookie": "cPNj_2132_lastfp=079737cd852f396e59ea74a50e4ff9f1; cPNj_2132_saltkey=CeJLs8Ed; cPNj_2132_lastvisit=1726724743; _safe=h4uHX8t74U1uC89h; cPNj_2132_nofavfid=1; cPNj_2132_smile=1D1; cPNj_2132_secqaaqSARdM0=1286544.1fe30bcf776352790f; cPNj_2132_atarget=1; cPNj_2132__refer=%252Fhome.php%253Fmod%253Dspacecp%2526ac%253Dprofile%2526op%253Dpassword; cPNj_2132_auth=44bdzFfx4TYjBMhuKf4AZdi2JM%2BXZ0Okxd0JEl1Hmwbz%2Fr3WiX0sLmATmolWkLlRgorFz%2BULizz5o6G%2FJ3YGWYPF0xw; cPNj_2132_lastcheckfeed=508551%7C1726728824; cPNj_2132_lip=8.219.243.67%2C1726728824; cPNj_2132_secqaaqSAp9u0=1287401.84f80cf53671988988; cPNj_2132_home_diymode=1; cPNj_2132_sid=0; cPNj_2132_st_t=508551%7C1729318359%7C645e73a57f2807c1a85c994685fbe7b7; cPNj_2132_forum_lastvisit=D_151_1726729986D_36_1726732739D_95_1726751606D_103_1729304183D_139_1729318359; cPNj_2132_visitedfid=139D103D159D95D141D143D166D36D170D151; cPNj_2132_ulastactivity=1729318359%7C0; cf_clearance=wXzU4znYwA5CfAohAd3fPolFurbPcgWGacwTjhmMmQs-1729318361-1.2.1.1-YhnHHOA0XWfeDsF2TdvRrtWHzFTfFlZCf5l3u5AFdto2u16rpdDDZGgi6OkrKmJ6gw4bFgh1P1PcvBtfxw4wA3ME2BcVkNhYscsgDJ_V0Dgh91hgopC85KB4LlV2rcz_K0UL7NMyAgbhID4AC.eeLsjlPmxd_Xq8SJCDctTvfRimKb22bGEuyXA_bKL_k2X5lDLDJSXfjx3285g0X2WUQroJKymoOBHn0MBUYrnP1h_dyD7KzZYkj38J3_aiM22H_rtzKO3O2sD_fitnDRuM.BAJhdr2bYdrM_UXdJAj4IF3MY_BqlCyYHSX.AaVqOz3MyK7j7Dj_jv9PdThWwcA_kjRuK4hVmxoofcu._2tw5_EY28D2.0CDIgAbjidrIUW; cPNj_2132_st_p=508551%7C1729318366%7Cf7f4e3654f2de21700cdd0472289b3e2; cPNj_2132_viewid=tid_2380153; cPNj_2132_lastact=1729318373%09forum.php%09attachment"
+    }
+}