feat: 初始化考培练系统项目

- 从服务器拉取完整代码
- 按框架规范整理项目结构
- 配置 Drone CI 测试环境部署
- 包含后端(FastAPI)、前端(Vue3)、管理端

技术栈: Vue3 + TypeScript + FastAPI + MySQL

backend/migrations/versions/0487635b5e95_add_position_courses_table.py

@@ -0,0 +1,46 @@
+"""add_position_courses_table
+
+Revision ID: 0487635b5e95
+Revises: 5448c81e7afd
+Create Date: 2025-09-22 08:27:52.507507
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '0487635b5e95'
+down_revision: Union[str, None] = '5448c81e7afd'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('position_courses',
+    sa.Column('position_id', sa.Integer(), nullable=False, comment='岗位ID'),
+    sa.Column('course_id', sa.Integer(), nullable=False, comment='课程ID'),
+    sa.Column('course_type', sa.String(length=20), nullable=False, comment='课程类型'),
+    sa.Column('priority', sa.Integer(), nullable=True, comment='优先级/排序'),
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('created_at', sa.DateTime(), nullable=False),
+    sa.Column('updated_at', sa.DateTime(), nullable=False),
+    sa.Column('is_deleted', sa.Boolean(), nullable=False),
+    sa.Column('deleted_at', sa.DateTime(), nullable=True),
+    sa.ForeignKeyConstraint(['course_id'], ['courses.id'], ),
+    sa.ForeignKeyConstraint(['position_id'], ['positions.id'], ),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('position_id', 'course_id', 'is_deleted', name='uix_position_course')
+    )
+    op.create_index(op.f('ix_position_courses_id'), 'position_courses', ['id'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_position_courses_id'), table_name='position_courses')
+    op.drop_table('position_courses')
+    # ### end Alembic commands ###