redesigned dashboard page

backend/migrations/versions/a9b1c2d3e4f7_add_board_id_to_activity_events.py

@@ -0,0 +1,66 @@
+"""add board_id to activity_events
+
+Revision ID: a9b1c2d3e4f7
+Revises: f1b2c3d4e5a6
+Create Date: 2026-03-04 18:20:00.000000
+
+"""
+
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "a9b1c2d3e4f7"
+down_revision = "f1b2c3d4e5a6"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column("activity_events", sa.Column("board_id", sa.Uuid(), nullable=True))
+    op.execute(
+        """
+        UPDATE activity_events AS ae
+        SET board_id = t.board_id
+        FROM tasks AS t
+        WHERE ae.task_id = t.id
+          AND ae.board_id IS NULL
+        """
+    )
+    op.execute(
+        """
+        UPDATE activity_events AS ae
+        SET board_id = a.board_id
+        FROM agents AS a
+        WHERE ae.agent_id = a.id
+          AND ae.board_id IS NULL
+          AND a.board_id IS NOT NULL
+        """
+    )
+    op.create_foreign_key(
+        "fk_activity_events_board_id_boards",
+        "activity_events",
+        "boards",
+        ["board_id"],
+        ["id"],
+        ondelete="CASCADE",
+    )
+    op.create_index(
+        op.f("ix_activity_events_board_id"),
+        "activity_events",
+        ["board_id"],
+        unique=False,
+    )
+
+
+def downgrade() -> None:
+    op.drop_index(op.f("ix_activity_events_board_id"), table_name="activity_events")
+    op.drop_constraint(
+        "fk_activity_events_board_id_boards",
+        "activity_events",
+        type_="foreignkey",
+    )
+    op.drop_column("activity_events", "board_id")