Implement group duty pinning and user phone management

- Added functionality to pin duty messages in group chats, including scheduling updates and handling bot add/remove events.
- Introduced a new `GroupDutyPin` model to store pinned message details and a `phone` field in the `User` model for user contact information.
- Implemented commands for users to set or clear their phone numbers in private chats.
- Enhanced the repository with functions to manage group duty pins and user phone data.
- Updated handlers to register new commands and manage duty pin updates effectively.

alembic/versions/004_group_duty_pins_and_user_phone.py

@@ -0,0 +1,35 @@
+"""Group duty pins table and User.phone
+
+Revision ID: 004
+Revises: 003
+Create Date: 2025-02-18
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = "004"
+down_revision: Union[str, None] = "003"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "users",
+        sa.Column("phone", sa.Text(), nullable=True),
+    )
+    op.create_table(
+        "group_duty_pins",
+        sa.Column("chat_id", sa.BigInteger(), nullable=False),
+        sa.Column("message_id", sa.Integer(), nullable=False),
+        sa.PrimaryKeyConstraint("chat_id"),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("group_duty_pins")
+    op.drop_column("users", "phone")