create a first alembic revision to generate blocks and pages tables

point alembic.ini at a local sqlite db for testing

migrations/alembic/versions/040713502ba4_initial_outline_rs_schema.py

@@ -0,0 +1,48 @@
+"""initial outline-rs schema
+
+Revision ID: 040713502ba4
+Revises: 
+Create Date: 2026-03-30 10:47:36.255978
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+
+# revision identifiers, used by Alembic.
+revision: str = '040713502ba4'
+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."""
+
+    # block table holds individual bullet points in the outline
+    op.create_table(
+        "blocks",
+        sa.Column("id", sa.INTEGER, primary_key=True),
+        sa.Column("first_child_id", sa.INTEGER, sa.schema.ForeignKey("blocks.id")),
+        sa.Column("next_sibling_id", sa.INTEGER, sa.schema.ForeignKey("blocks.id")),
+        sa.Column("page_id", sa.INTEGER, sa.schema.ForeignKey("pages.id"), index=True),
+        sa.Column("content", sa.types.UnicodeText)
+    )
+
+    op.create_table(
+        "pages",
+        sa.Column("id", sa.INTEGER, primary_key=True),
+        sa.Column("root_block_id", sa.INTEGER, sa.schema.ForeignKey("blocks.id")),
+        sa.Column("title", sa.types.UnicodeText)
+    )
+    pass
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    op.drop_table("blocks")
+    op.drop_table("pages")
+    pass