add db migrations

migrations/README

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+Generic single-database configuration.

migrations/env.py

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+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+from models.base import Base
+import models.script  # noqa: F401 to ensure the model is imported
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = Base.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

migrations/versions/330873df4e1d_create_table_t_script.py

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+"""create table t_script
+
+Revision ID: 330873df4e1d
+Revises: 4b57e6113ae1
+Create Date: 2025-11-20 22:15:57.197011
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '330873df4e1d'
+down_revision: Union[str, Sequence[str], None] = '4b57e6113ae1'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('t_script',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False, comment='自动递增的唯一内容ID'),
+    sa.Column('project', sa.String(length=64), nullable=False, comment='项目名称'),
+    sa.Column('subject', sa.String(length=256), nullable=False, comment='主题'),
+    sa.Column('content', sa.Text(), nullable=True, comment='内容'),
+    sa.Column('create_time', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False, comment='创建时间'),
+    sa.Column('update_time', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False, comment='更新时间'),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_t_script_project'), 't_script', ['project'], unique=False)
+    op.create_index('ux_project_subject', 't_script', ['project', 'subject'], unique=True)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index('ux_project_subject', table_name='t_script')
+    op.drop_index(op.f('ix_t_script_project'), table_name='t_script')
+    op.drop_table('t_script')
+    # ### end Alembic commands ###

migrations/versions/4b57e6113ae1_init_tables.py

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+"""init tables
+
+Revision ID: 4b57e6113ae1
+Revises: 
+Create Date: 2025-11-20 22:07:59.558088
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision: str = '4b57e6113ae1'
+down_revision: Union[str, Sequence[str], None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_apscheduler_jobs_next_run_time'), table_name='apscheduler_jobs')
+    op.drop_table('apscheduler_jobs')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('apscheduler_jobs',
+    sa.Column('id', sa.VARCHAR(length=191), autoincrement=False, nullable=False),
+    sa.Column('next_run_time', sa.DOUBLE_PRECISION(precision=53), autoincrement=False, nullable=True),
+    sa.Column('job_state', postgresql.BYTEA(), autoincrement=False, nullable=False),
+    sa.PrimaryKeyConstraint('id', name=op.f('apscheduler_jobs_pkey'))
+    )
+    op.create_index(op.f('ix_apscheduler_jobs_next_run_time'), 'apscheduler_jobs', ['next_run_time'], unique=False)
+    # ### end Alembic commands ###