first commit

apps/secretary-api/alembic/versions/0001_initial_support_schema.py

@@ -0,0 +1,374 @@
+"""initial support schema
+
+Revision ID: 0001_initial_support_schema
+Revises:
+Create Date: 2026-07-08 00:00:00
+"""
+
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+revision = "0001_initial_support_schema"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+support_status_codes = sa.table(
+    "support_status_codes",
+    sa.column("code", sa.String(length=20)),
+    sa.column("name", sa.String(length=50)),
+    sa.column("sort_order", sa.Integer()),
+)
+
+support_category_codes = sa.table(
+    "support_category_codes",
+    sa.column("code", sa.String(length=20)),
+    sa.column("name", sa.String(length=50)),
+    sa.column("sort_order", sa.Integer()),
+)
+
+service_types = sa.table(
+    "service_types",
+    sa.column("id", sa.BigInteger()),
+    sa.column("service_code", sa.String(length=50)),
+    sa.column("service_name", sa.String(length=100)),
+    sa.column("description", sa.Text()),
+    sa.column("is_active", sa.Boolean()),
+)
+
+workspaces = sa.table(
+    "workspaces",
+    sa.column("workspace_type", sa.String(length=20)),
+    sa.column("software_app_id", sa.BigInteger()),
+    sa.column("service_type_id", sa.BigInteger()),
+    sa.column("workspace_code", sa.String(length=50)),
+    sa.column("workspace_name", sa.String(length=100)),
+    sa.column("is_active", sa.Boolean()),
+)
+
+
+def upgrade() -> None:
+    op.create_table(
+        "software_apps",
+        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+        sa.Column("app_code", sa.String(length=50), nullable=False),
+        sa.Column("app_name", sa.String(length=100), nullable=False),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.Column("is_active", sa.Boolean(), nullable=False, server_default=sa.true()),
+        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("app_code", name="uq_software_apps_app_code"),
+        sa.UniqueConstraint("app_name", name="uq_software_apps_app_name"),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "service_types",
+        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+        sa.Column("service_code", sa.String(length=50), nullable=False),
+        sa.Column("service_name", sa.String(length=100), nullable=False),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.Column("is_active", sa.Boolean(), nullable=False, server_default=sa.true()),
+        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("service_code", name="uq_service_types_service_code"),
+        sa.UniqueConstraint("service_name", name="uq_service_types_service_name"),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "workspaces",
+        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+        sa.Column("workspace_type", sa.String(length=20), nullable=False),
+        sa.Column("software_app_id", sa.BigInteger(), nullable=True),
+        sa.Column("service_type_id", sa.BigInteger(), nullable=True),
+        sa.Column("workspace_code", sa.String(length=50), nullable=False),
+        sa.Column("workspace_name", sa.String(length=100), nullable=False),
+        sa.Column("is_active", sa.Boolean(), nullable=False, server_default=sa.true()),
+        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.CheckConstraint(
+            "(workspace_type = 'SOFTWARE_APP' AND software_app_id IS NOT NULL AND service_type_id IS NULL) OR "
+            "(workspace_type = 'INTRANET_SERVICE' AND service_type_id IS NOT NULL AND software_app_id IS NULL)",
+            name="chk_workspaces_scope",
+        ),
+        sa.ForeignKeyConstraint(["service_type_id"], ["service_types.id"], name="fk_workspaces_service_type"),
+        sa.ForeignKeyConstraint(["software_app_id"], ["software_apps.id"], name="fk_workspaces_software_app"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("workspace_code", name="uq_workspaces_workspace_code"),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "user_workspace_access",
+        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+        sa.Column("user_id", sa.String(length=100), nullable=False),
+        sa.Column("tenant_id", sa.String(length=100), nullable=False),
+        sa.Column("workspace_id", sa.BigInteger(), nullable=False),
+        sa.Column("workspace_role", sa.String(length=30), nullable=False, server_default="USER"),
+        sa.Column("can_read", sa.Boolean(), nullable=False, server_default=sa.true()),
+        sa.Column("can_write", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column("can_manage", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column("can_approve", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column("page_scope", sa.String(length=50), nullable=True),
+        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.ForeignKeyConstraint(["workspace_id"], ["workspaces.id"], name="fk_user_workspace_access_workspace"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint(
+            "user_id",
+            "tenant_id",
+            "workspace_id",
+            name="uq_user_workspace_access_user_tenant_workspace",
+        ),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "workspace_channel_mappings",
+        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+        sa.Column("workspace_id", sa.BigInteger(), nullable=False),
+        sa.Column("abc_channel_id", sa.String(length=100), nullable=False),
+        sa.Column("abc_channel_key", sa.String(length=100), nullable=True),
+        sa.Column("form_template_version", sa.String(length=30), nullable=True),
+        sa.Column("is_active", sa.Boolean(), nullable=False, server_default=sa.true()),
+        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.ForeignKeyConstraint(["workspace_id"], ["workspaces.id"], name="fk_workspace_channel_mappings_workspace"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("workspace_id", "abc_channel_id", name="uq_workspace_channel_mappings_workspace_channel"),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "workspace_field_mappings",
+        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+        sa.Column("workspace_id", sa.BigInteger(), nullable=False),
+        sa.Column("abc_channel_id", sa.String(length=100), nullable=False),
+        sa.Column("abc_field_key", sa.String(length=100), nullable=False),
+        sa.Column("local_field_code", sa.String(length=100), nullable=False),
+        sa.Column("field_label", sa.String(length=100), nullable=False),
+        sa.Column("field_type", sa.String(length=30), nullable=False),
+        sa.Column("is_required", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column("sort_order", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("validation_rule", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.ForeignKeyConstraint(["workspace_id"], ["workspaces.id"], name="fk_workspace_field_mappings_workspace"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint(
+            "workspace_id",
+            "abc_channel_id",
+            "abc_field_key",
+            name="uq_workspace_field_mappings_workspace_channel_field",
+        ),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "support_status_codes",
+        sa.Column("code", sa.String(length=20), nullable=False),
+        sa.Column("name", sa.String(length=50), nullable=False),
+        sa.Column("sort_order", sa.Integer(), nullable=False),
+        sa.PrimaryKeyConstraint("code"),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "support_category_codes",
+        sa.Column("code", sa.String(length=20), nullable=False),
+        sa.Column("name", sa.String(length=50), nullable=False),
+        sa.Column("sort_order", sa.Integer(), nullable=False),
+        sa.PrimaryKeyConstraint("code"),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "support_tickets",
+        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+        sa.Column("workspace_id", sa.BigInteger(), nullable=False),
+        sa.Column("requester_id", sa.String(length=100), nullable=False),
+        sa.Column("requester_tenant_id", sa.String(length=100), nullable=False),
+        sa.Column("ticket_type", sa.String(length=30), nullable=False),
+        sa.Column("source_system", sa.String(length=30), nullable=False, server_default="ABC"),
+        sa.Column("title", sa.String(length=255), nullable=False),
+        sa.Column("category_code", sa.String(length=20), nullable=True),
+        sa.Column("status_code", sa.String(length=20), nullable=False),
+        sa.Column("is_secret", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column("requires_approval", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column("current_assignee_id", sa.String(length=100), nullable=True),
+        sa.Column("current_assignee_tenant_id", sa.String(length=100), nullable=True),
+        sa.Column("requested_start_at", sa.TIMESTAMP(), nullable=True),
+        sa.Column("requested_end_at", sa.TIMESTAMP(), nullable=True),
+        sa.Column("priority", sa.String(length=20), nullable=False, server_default="NORMAL"),
+        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.Column(
+            "updated_at",
+            sa.TIMESTAMP(),
+            nullable=False,
+            server_default=sa.text("CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP"),
+        ),
+        sa.ForeignKeyConstraint(["category_code"], ["support_category_codes.code"], name="fk_support_tickets_category_code"),
+        sa.ForeignKeyConstraint(["status_code"], ["support_status_codes.code"], name="fk_support_tickets_status_code"),
+        sa.ForeignKeyConstraint(["workspace_id"], ["workspaces.id"], name="fk_support_tickets_workspace"),
+        sa.PrimaryKeyConstraint("id"),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "abc_feedback_mappings",
+        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+        sa.Column("ticket_id", sa.BigInteger(), nullable=False),
+        sa.Column("workspace_id", sa.BigInteger(), nullable=False),
+        sa.Column("abc_channel_id", sa.String(length=100), nullable=False),
+        sa.Column("abc_feedback_id", sa.String(length=100), nullable=False),
+        sa.Column("abc_feedback_url", sa.Text(), nullable=True),
+        sa.Column("sync_status", sa.String(length=20), nullable=False, server_default="SYNCED"),
+        sa.Column("last_synced_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.ForeignKeyConstraint(["ticket_id"], ["support_tickets.id"], name="fk_abc_feedback_mappings_ticket"),
+        sa.ForeignKeyConstraint(["workspace_id"], ["workspaces.id"], name="fk_abc_feedback_mappings_workspace"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("abc_feedback_id", name="uq_abc_feedback_mappings_feedback_id"),
+        sa.UniqueConstraint("ticket_id", name="uq_abc_feedback_mappings_ticket_id"),
+        mysql_engine="InnoDB",
+    )
+
+    op.create_table(
+        "request_approvals",
+        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+        sa.Column("ticket_id", sa.BigInteger(), nullable=False),
+        sa.Column("approver_id", sa.String(length=100), nullable=False),
+        sa.Column("approver_tenant_id", sa.String(length=100), nullable=False),
+        sa.Column("approval_status", sa.String(length=20), nullable=False),
+        sa.Column("comment", sa.Text(), nullable=True),
+        sa.Column("approved_at", sa.TIMESTAMP(), nullable=True),
+        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+        sa.ForeignKeyConstraint(["ticket_id"], ["support_tickets.id"], name="fk_request_approvals_ticket"),
+        sa.PrimaryKeyConstraint("id"),
+        mysql_engine="InnoDB",
+    )
+
+    op.bulk_insert(
+        support_status_codes,
+        [
+            {"code": "RECEIVED", "name": "접수", "sort_order": 10},
+            {"code": "PENDING_APPROVAL", "name": "승인 대기", "sort_order": 20},
+            {"code": "APPROVED", "name": "승인 완료", "sort_order": 30},
+            {"code": "REJECTED", "name": "반려", "sort_order": 40},
+            {"code": "IN_PROGRESS", "name": "처리 중", "sort_order": 50},
+            {"code": "RESOLVED", "name": "처리 완료", "sort_order": 60},
+            {"code": "CLOSED", "name": "종료", "sort_order": 70},
+        ],
+    )
+
+    op.bulk_insert(
+        support_category_codes,
+        [
+            {"code": "SUPPLIES", "name": "물품 신청", "sort_order": 10},
+            {"code": "BOOK", "name": "도서 신청", "sort_order": 20},
+            {"code": "VEHICLE", "name": "차량 신청", "sort_order": 30},
+            {"code": "EQUIPMENT", "name": "비품 대여", "sort_order": 40},
+            {"code": "GENERAL_QNA", "name": "일반 문의", "sort_order": 50},
+        ],
+    )
+
+    op.bulk_insert(
+        service_types,
+        [
+            {
+                "id": 1,
+                "service_code": "SUPPLIES_REQUEST",
+                "service_name": "물품 신청",
+                "description": "인트라넷 물품 신청 서비스",
+                "is_active": True,
+            },
+            {
+                "id": 2,
+                "service_code": "BOOK_REQUEST",
+                "service_name": "도서 신청",
+                "description": "인트라넷 도서 신청 서비스",
+                "is_active": True,
+            },
+            {
+                "id": 3,
+                "service_code": "VEHICLE_REQUEST",
+                "service_name": "출장 차량 신청",
+                "description": "인트라넷 차량 배차 신청 서비스",
+                "is_active": True,
+            },
+            {
+                "id": 4,
+                "service_code": "EQUIPMENT_RENTAL",
+                "service_name": "비품 대여",
+                "description": "인트라넷 비품 대여 서비스",
+                "is_active": True,
+            },
+            {
+                "id": 5,
+                "service_code": "GENERAL_QNA",
+                "service_name": "사내 일반 문의",
+                "description": "인트라넷 일반 문의 서비스",
+                "is_active": True,
+            },
+        ],
+    )
+
+    op.bulk_insert(
+        workspaces,
+        [
+            {
+                "workspace_type": "INTRANET_SERVICE",
+                "software_app_id": None,
+                "service_type_id": 1,
+                "workspace_code": "INTRA_SUPPLIES_REQUEST",
+                "workspace_name": "인트라넷 물품 신청",
+                "is_active": True,
+            },
+            {
+                "workspace_type": "INTRANET_SERVICE",
+                "software_app_id": None,
+                "service_type_id": 2,
+                "workspace_code": "INTRA_BOOK_REQUEST",
+                "workspace_name": "인트라넷 도서 신청",
+                "is_active": True,
+            },
+            {
+                "workspace_type": "INTRANET_SERVICE",
+                "software_app_id": None,
+                "service_type_id": 3,
+                "workspace_code": "INTRA_VEHICLE_REQUEST",
+                "workspace_name": "인트라넷 차량 신청",
+                "is_active": True,
+            },
+            {
+                "workspace_type": "INTRANET_SERVICE",
+                "software_app_id": None,
+                "service_type_id": 4,
+                "workspace_code": "INTRA_EQUIPMENT_RENTAL",
+                "workspace_name": "인트라넷 비품 대여",
+                "is_active": True,
+            },
+            {
+                "workspace_type": "INTRANET_SERVICE",
+                "software_app_id": None,
+                "service_type_id": 5,
+                "workspace_code": "INTRA_GENERAL_QNA",
+                "workspace_name": "인트라넷 일반 문의",
+                "is_active": True,
+            },
+        ],
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("request_approvals")
+    op.drop_table("abc_feedback_mappings")
+    op.drop_table("support_tickets")
+    op.drop_table("support_category_codes")
+    op.drop_table("support_status_codes")
+    op.drop_table("workspace_field_mappings")
+    op.drop_table("workspace_channel_mappings")
+    op.drop_table("user_workspace_access")
+    op.drop_table("workspaces")
+    op.drop_table("service_types")
+    op.drop_table("software_apps")

apps/secretary-api/alembic/versions/0002_support_ticket_content_fields.py

@@ -0,0 +1,62 @@
+"""add support ticket content fields
+
+Revision ID: 0002_support_fields
+Revises: 0001_initial_support_schema
+Create Date: 2026-07-10 00:00:00
+"""
+
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy import inspect
+
+revision = "0002_support_fields"
+down_revision = "0001_initial_support_schema"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    inspector = inspect(bind)
+    existing_columns = {column["name"] for column in inspector.get_columns("support_tickets")}
+
+    if "requester_contact" not in existing_columns:
+        op.add_column("support_tickets", sa.Column("requester_contact", sa.String(length=100), nullable=True))
+
+    if "description" not in existing_columns:
+        op.add_column("support_tickets", sa.Column("description", sa.Text(), nullable=True))
+
+    if "approval_status" not in existing_columns:
+        op.add_column(
+            "support_tickets",
+            sa.Column("approval_status", sa.String(length=20), nullable=False, server_default="NOT_REQUIRED"),
+        )
+
+    if "sync_status" not in existing_columns:
+        op.add_column(
+            "support_tickets",
+            sa.Column("sync_status", sa.String(length=20), nullable=False, server_default="PENDING"),
+        )
+
+    if "issue_link_status" not in existing_columns:
+        op.add_column(
+            "support_tickets",
+            sa.Column("issue_link_status", sa.String(length=20), nullable=False, server_default="NOT_REQUIRED"),
+        )
+
+    if "extra_fields" not in existing_columns:
+        op.add_column("support_tickets", sa.Column("extra_fields", sa.JSON(), nullable=True))
+
+    op.execute("UPDATE support_tickets SET description = '' WHERE description IS NULL")
+    op.alter_column("support_tickets", "description", existing_type=sa.Text(), nullable=False)
+
+
+def downgrade() -> None:
+    op.drop_column("support_tickets", "extra_fields")
+    op.drop_column("support_tickets", "issue_link_status")
+    op.drop_column("support_tickets", "sync_status")
+    op.drop_column("support_tickets", "approval_status")
+    op.drop_column("support_tickets", "description")
+    op.drop_column("support_tickets", "requester_contact")

apps/secretary-api/alembic/versions/0003_support_comments_attachments_workflows.py

@@ -0,0 +1,204 @@
+"""add comment, attachment, and approval workflow tables
+
+Revision ID: 0003_support_comment_flow
+Revises: 0002_support_fields
+Create Date: 2026-07-13 00:00:00
+"""
+
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy import inspect
+
+revision = "0003_support_comment_flow"
+down_revision = "0002_support_fields"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    inspector = inspect(bind)
+    existing_tables = set(inspector.get_table_names())
+
+    if "workspace_approval_policies" not in existing_tables:
+        op.create_table(
+            "workspace_approval_policies",
+            sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+            sa.Column("workspace_id", sa.BigInteger(), nullable=False),
+            sa.Column("request_category_code", sa.String(length=50), nullable=True),
+            sa.Column("ticket_type", sa.String(length=30), nullable=True),
+            sa.Column("rule_name", sa.String(length=100), nullable=False),
+            sa.Column("description", sa.Text(), nullable=True),
+            sa.Column("conditions", sa.JSON(), nullable=True),
+            sa.Column("is_active", sa.Boolean(), nullable=False, server_default=sa.true()),
+            sa.Column("version", sa.Integer(), nullable=False, server_default="1"),
+            sa.Column("created_by", sa.String(length=100), nullable=True),
+            sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+            sa.Column(
+                "updated_at",
+                sa.TIMESTAMP(),
+                nullable=False,
+                server_default=sa.text("CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP"),
+            ),
+            sa.ForeignKeyConstraint(["workspace_id"], ["workspaces.id"], name="fk_workspace_approval_policies_workspace"),
+            sa.PrimaryKeyConstraint("id"),
+            sa.UniqueConstraint(
+                "workspace_id",
+                "rule_name",
+                "version",
+                name="uq_workspace_approval_policies_workspace_rule_version",
+            ),
+            mysql_engine="InnoDB",
+        )
+
+    if "workspace_approval_steps" not in existing_tables:
+        op.create_table(
+            "workspace_approval_steps",
+            sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+            sa.Column("policy_id", sa.BigInteger(), nullable=False),
+            sa.Column("step_order", sa.Integer(), nullable=False),
+            sa.Column("approver_type", sa.String(length=30), nullable=False),
+            sa.Column("approver_key", sa.String(length=100), nullable=False),
+            sa.Column("approver_name", sa.String(length=100), nullable=True),
+            sa.Column("approval_mode", sa.String(length=20), nullable=False, server_default="ALL"),
+            sa.Column("is_required", sa.Boolean(), nullable=False, server_default=sa.true()),
+            sa.Column("sla_hours", sa.Integer(), nullable=True),
+            sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+            sa.ForeignKeyConstraint(["policy_id"], ["workspace_approval_policies.id"], name="fk_workspace_approval_steps_policy"),
+            sa.PrimaryKeyConstraint("id"),
+            sa.UniqueConstraint("policy_id", "step_order", name="uq_workspace_approval_steps_policy_order"),
+            mysql_engine="InnoDB",
+        )
+
+    if "ticket_comments" not in existing_tables:
+        op.create_table(
+            "ticket_comments",
+            sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+            sa.Column("ticket_id", sa.BigInteger(), nullable=False),
+            sa.Column("parent_comment_id", sa.BigInteger(), nullable=True),
+            sa.Column("author_id", sa.String(length=100), nullable=False),
+            sa.Column("author_tenant_id", sa.String(length=100), nullable=False),
+            sa.Column("author_name", sa.String(length=100), nullable=True),
+            sa.Column("comment_type", sa.String(length=20), nullable=False, server_default="COMMENT"),
+            sa.Column("content", sa.Text(), nullable=False),
+            sa.Column("is_internal", sa.Boolean(), nullable=False, server_default=sa.false()),
+            sa.Column("abc_comment_id", sa.String(length=100), nullable=True),
+            sa.Column("sync_status", sa.String(length=20), nullable=False, server_default="PENDING"),
+            sa.Column("edited_at", sa.TIMESTAMP(), nullable=True),
+            sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+            sa.Column(
+                "updated_at",
+                sa.TIMESTAMP(),
+                nullable=False,
+                server_default=sa.text("CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP"),
+            ),
+            sa.Column("deleted_at", sa.TIMESTAMP(), nullable=True),
+            sa.ForeignKeyConstraint(["ticket_id"], ["support_tickets.id"], name="fk_ticket_comments_ticket"),
+            sa.ForeignKeyConstraint(["parent_comment_id"], ["ticket_comments.id"], name="fk_ticket_comments_parent_comment"),
+            sa.PrimaryKeyConstraint("id"),
+            sa.UniqueConstraint("abc_comment_id", name="uq_ticket_comments_abc_comment_id"),
+            mysql_engine="InnoDB",
+        )
+        op.create_index("idx_ticket_comments_ticket_created", "ticket_comments", ["ticket_id", "created_at"])
+
+    if "attachments" not in existing_tables:
+        op.create_table(
+            "attachments",
+            sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
+            sa.Column("ticket_id", sa.BigInteger(), nullable=False),
+            sa.Column("comment_id", sa.BigInteger(), nullable=True),
+            sa.Column("workspace_id", sa.BigInteger(), nullable=False),
+            sa.Column("uploader_id", sa.String(length=100), nullable=False),
+            sa.Column("uploader_tenant_id", sa.String(length=100), nullable=False),
+            sa.Column("original_file_name", sa.String(length=255), nullable=False),
+            sa.Column("stored_file_name", sa.String(length=255), nullable=True),
+            sa.Column("storage_provider", sa.String(length=30), nullable=False, server_default="LOCAL"),
+            sa.Column("storage_bucket", sa.String(length=255), nullable=True),
+            sa.Column("storage_key", sa.String(length=500), nullable=False),
+            sa.Column("mime_type", sa.String(length=100), nullable=True),
+            sa.Column("file_extension", sa.String(length=20), nullable=True),
+            sa.Column("file_size", sa.BigInteger(), nullable=True),
+            sa.Column("checksum_sha256", sa.String(length=64), nullable=True),
+            sa.Column("abc_attachment_id", sa.String(length=100), nullable=True),
+            sa.Column("attachment_status", sa.String(length=20), nullable=False, server_default="ACTIVE"),
+            sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.text("CURRENT_TIMESTAMP")),
+            sa.Column(
+                "updated_at",
+                sa.TIMESTAMP(),
+                nullable=False,
+                server_default=sa.text("CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP"),
+            ),
+            sa.Column("deleted_at", sa.TIMESTAMP(), nullable=True),
+            sa.CheckConstraint(
+                "comment_id IS NULL OR ticket_id IS NOT NULL",
+                name="chk_attachments_comment_requires_ticket",
+            ),
+            sa.ForeignKeyConstraint(["comment_id"], ["ticket_comments.id"], name="fk_attachments_comment"),
+            sa.ForeignKeyConstraint(["ticket_id"], ["support_tickets.id"], name="fk_attachments_ticket"),
+            sa.ForeignKeyConstraint(["workspace_id"], ["workspaces.id"], name="fk_attachments_workspace"),
+            sa.PrimaryKeyConstraint("id"),
+            sa.UniqueConstraint("storage_provider", "storage_key", name="uq_attachments_storage_provider_key"),
+            sa.UniqueConstraint("abc_attachment_id", name="uq_attachments_abc_attachment_id"),
+            mysql_engine="InnoDB",
+        )
+        op.create_index("idx_attachments_ticket_created", "attachments", ["ticket_id", "created_at"])
+        op.create_index("idx_attachments_comment_created", "attachments", ["comment_id", "created_at"])
+
+    approval_columns = {column["name"] for column in inspector.get_columns("request_approvals")}
+
+    if "workflow_policy_id" not in approval_columns:
+        op.add_column("request_approvals", sa.Column("workflow_policy_id", sa.BigInteger(), nullable=True))
+        op.create_foreign_key(
+            "fk_request_approvals_workflow_policy",
+            "request_approvals",
+            "workspace_approval_policies",
+            ["workflow_policy_id"],
+            ["id"],
+        )
+
+    if "workflow_step_id" not in approval_columns:
+        op.add_column("request_approvals", sa.Column("workflow_step_id", sa.BigInteger(), nullable=True))
+        op.create_foreign_key(
+            "fk_request_approvals_workflow_step",
+            "request_approvals",
+            "workspace_approval_steps",
+            ["workflow_step_id"],
+            ["id"],
+        )
+
+    if "step_order" not in approval_columns:
+        op.add_column("request_approvals", sa.Column("step_order", sa.Integer(), nullable=True))
+
+
+def downgrade() -> None:
+    approval_columns = {column["name"] for column in inspect(op.get_bind()).get_columns("request_approvals")}
+
+    if "step_order" in approval_columns:
+        op.drop_column("request_approvals", "step_order")
+
+    if "workflow_step_id" in approval_columns:
+        op.drop_constraint("fk_request_approvals_workflow_step", "request_approvals", type_="foreignkey")
+        op.drop_column("request_approvals", "workflow_step_id")
+
+    if "workflow_policy_id" in approval_columns:
+        op.drop_constraint("fk_request_approvals_workflow_policy", "request_approvals", type_="foreignkey")
+        op.drop_column("request_approvals", "workflow_policy_id")
+
+    existing_tables = set(inspect(op.get_bind()).get_table_names())
+
+    if "attachments" in existing_tables:
+        op.drop_index("idx_attachments_comment_created", table_name="attachments")
+        op.drop_index("idx_attachments_ticket_created", table_name="attachments")
+        op.drop_table("attachments")
+
+    if "ticket_comments" in existing_tables:
+        op.drop_index("idx_ticket_comments_ticket_created", table_name="ticket_comments")
+        op.drop_table("ticket_comments")
+
+    if "workspace_approval_steps" in existing_tables:
+        op.drop_table("workspace_approval_steps")
+
+    if "workspace_approval_policies" in existing_tables:
+        op.drop_table("workspace_approval_policies")