Init first files

backend/alembic/env.py

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+from logging.config import fileConfig
+from sqlalchemy import pool
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+from alembic import context
+from app.core.config import get_settings
+from app.core.db import Base
+from app.models import models  # noqa: F401
+
+config = context.config
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+settings = get_settings()
+config.set_main_option("sqlalchemy.url", settings.database_url)
+target_metadata = Base.metadata
+
+
+def run_migrations_offline() -> None:
+    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 do_run_migrations(connection: Connection) -> None:
+    context.configure(connection=connection, target_metadata=target_metadata)
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_migrations_online() -> None:
+    connectable = async_engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+    await connectable.dispose()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    import asyncio
+
+    asyncio.run(run_migrations_online())

backend/alembic/script.py.mako

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

backend/alembic/versions/0001_init.py

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+"""init schema
+
+Revision ID: 0001_init
+Revises:
+Create Date: 2026-02-12
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "0001_init"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "users",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("email", sa.String(length=255), nullable=False, unique=True),
+        sa.Column("password_hash", sa.String(length=255), nullable=False),
+        sa.Column("role", sa.String(length=20), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+    )
+    op.create_index("ix_users_email", "users", ["email"], unique=True)
+
+    op.create_table(
+        "targets",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("name", sa.String(length=120), nullable=False, unique=True),
+        sa.Column("host", sa.String(length=255), nullable=False),
+        sa.Column("port", sa.Integer(), nullable=False, server_default="5432"),
+        sa.Column("dbname", sa.String(length=120), nullable=False),
+        sa.Column("username", sa.String(length=120), nullable=False),
+        sa.Column("encrypted_password", sa.Text(), nullable=False),
+        sa.Column("sslmode", sa.String(length=20), nullable=False, server_default="prefer"),
+        sa.Column("tags", sa.JSON(), nullable=False, server_default="{}"),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+    )
+    op.create_index("ix_targets_name", "targets", ["name"], unique=True)
+
+    op.create_table(
+        "metrics",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("target_id", sa.Integer(), sa.ForeignKey("targets.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("ts", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.Column("metric_name", sa.String(length=120), nullable=False),
+        sa.Column("value", sa.Float(), nullable=False),
+        sa.Column("labels", sa.JSON(), nullable=False, server_default="{}"),
+    )
+    op.create_index("ix_metrics_target_id", "metrics", ["target_id"])
+    op.create_index("ix_metrics_ts", "metrics", ["ts"])
+    op.create_index("ix_metrics_metric_name", "metrics", ["metric_name"])
+
+    op.create_table(
+        "query_stats",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("target_id", sa.Integer(), sa.ForeignKey("targets.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("ts", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.Column("queryid", sa.String(length=100), nullable=False),
+        sa.Column("calls", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("total_time", sa.Float(), nullable=False, server_default="0"),
+        sa.Column("mean_time", sa.Float(), nullable=False, server_default="0"),
+        sa.Column("rows", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("query_text", sa.Text(), nullable=True),
+    )
+    op.create_index("ix_query_stats_target_id", "query_stats", ["target_id"])
+    op.create_index("ix_query_stats_ts", "query_stats", ["ts"])
+
+    op.create_table(
+        "audit_logs",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("ts", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.Column("user_id", sa.Integer(), sa.ForeignKey("users.id"), nullable=True),
+        sa.Column("action", sa.String(length=120), nullable=False),
+        sa.Column("payload", sa.JSON(), nullable=False, server_default="{}"),
+    )
+    op.create_index("ix_audit_logs_ts", "audit_logs", ["ts"])
+    op.create_index("ix_audit_logs_user_id", "audit_logs", ["user_id"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_audit_logs_user_id", table_name="audit_logs")
+    op.drop_index("ix_audit_logs_ts", table_name="audit_logs")
+    op.drop_table("audit_logs")
+    op.drop_index("ix_query_stats_ts", table_name="query_stats")
+    op.drop_index("ix_query_stats_target_id", table_name="query_stats")
+    op.drop_table("query_stats")
+    op.drop_index("ix_metrics_metric_name", table_name="metrics")
+    op.drop_index("ix_metrics_ts", table_name="metrics")
+    op.drop_index("ix_metrics_target_id", table_name="metrics")
+    op.drop_table("metrics")
+    op.drop_index("ix_targets_name", table_name="targets")
+    op.drop_table("targets")
+    op.drop_index("ix_users_email", table_name="users")
+    op.drop_table("users")