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

migrations/versions/b961883c5443_init.py

@@ -0,0 +1,54 @@
+"""init
+
+Revision ID: b961883c5443
+Revises: 
+Create Date: 2026-03-25 19:08:34.121849
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'b961883c5443'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('setting',
+    sa.Column('name', sa.String(length=64), nullable=False),
+    sa.Column('mod', sa.String(length=64), nullable=True),
+    sa.Column('fid', sa.Integer(), nullable=False),
+    sa.Column('orderby', sa.String(length=64), nullable=True),
+    sa.Column('baseUrl', sa.String(length=64), nullable=True),
+    sa.Column('targetDate', sa.String(length=64), nullable=True),
+    sa.Column('targetCountDownPage', sa.Integer(), nullable=True),
+    sa.Column('totalPage', sa.Integer(), nullable=True),
+    sa.Column('privilegeLevel', sa.Integer(), nullable=True),
+    sa.PrimaryKeyConstraint('fid')
+    )
+    with op.batch_alter_table('setting', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_setting_mod'), ['mod'], unique=True)
+
+    op.create_table('user',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('username', sa.String(length=80), nullable=False),
+    sa.Column('email', sa.String(length=120), nullable=False),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('email'),
+    sa.UniqueConstraint('username')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('user')
+    with op.batch_alter_table('setting', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_setting_mod'))
+
+    op.drop_table('setting')
+    # ### end Alembic commands ###