Persist runtime config in app db and seed from env

alembic_app/env.py

@@ -5,6 +5,7 @@ from sqlalchemy import engine_from_config, pool
 
 from app.auth_db import AuthBase
 from app.config import get_settings
+from app.models.config import AppConfigEntry  # noqa: F401
 from app.models.auth import AuthSession, AuthUser  # noqa: F401
 
 config = context.config

alembic_app/versions/20260420_04_app_config_table.py

@@ -0,0 +1,34 @@
+"""app config table
+
+Revision ID: 20260420_04_app_config_table
+Revises: 20260420_03_app_auth_baseline
+Create Date: 2026-04-20 00:00:01.000000
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision: str = "20260420_04_app_config_table"
+down_revision: Union[str, None] = "20260420_03_app_auth_baseline"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "app_config",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("key", sa.String(length=255), nullable=False),
+        sa.Column("value", sa.String(), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(op.f("ix_app_config_key"), "app_config", ["key"], unique=True)
+
+
+def downgrade() -> None:
+    op.drop_index(op.f("ix_app_config_key"), table_name="app_config")
+    op.drop_table("app_config")