feat: notification center backend core (PR-1)

- Add notifications table with Alembic migration - Notification model with user-scoped indexing and partial index on unread - NotificationService singleton with create/list/count/mark-read/dismiss - FastAPI router: GET /notifications, GET /unread, PATCH /{id}/read, POST /mark-all-read, DELETE /{id} - Mute categories filtering from UserConfig - 13 unit tests for NotificationService - 10 integration tests for API endpoints - Updated test_models.py with new table registration Quality gates: pytest 23 new passed, ruff clean
2026-05-29 12:05:31 +02:00
parent 4a0d38384f
commit cbaebcf649
18 changed files with 4161 additions and 9 deletions
@@ -0,0 +1,69 @@
+"""add notifications table
+
+Revision ID: 2026_05_29_add_notifications_table
+Revises: 2026_05_28_add_monitoring_tables
+Create Date: 2026-05-29
+
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "2026_05_29_add_notifications_table"
+down_revision: str | None = "2026_05_28_add_monitoring_tables"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "notifications",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("user_id", sa.Uuid(), nullable=False),
+        sa.Column("category", sa.String(length=32), nullable=False),
+        sa.Column("severity", sa.String(length=16), nullable=False),
+        sa.Column("title", sa.String(length=255), nullable=False),
+        sa.Column("message", sa.Text(), nullable=True),
+        sa.Column("source_type", sa.String(length=64), nullable=True),
+        sa.Column("source_id", sa.Uuid(), nullable=True),
+        sa.Column(
+            "metadata",
+            sa.JSON(),
+            nullable=False,
+            server_default="{}",
+        ),
+        sa.Column("read_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("dismissed_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.func.now(),
+            nullable=False,
+        ),
+        sa.ForeignKeyConstraint(
+            ["user_id"],
+            ["users.id"],
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(
+        "idx_notifications_user_created_at",
+        "notifications",
+        ["user_id", sa.text("created_at DESC")],
+    )
+    op.create_index(
+        "idx_notifications_user_unread",
+        "notifications",
+        ["user_id", "read_at"],
+        postgresql_where=sa.text("read_at IS NULL"),
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("idx_notifications_user_unread", table_name="notifications")
+    op.drop_index("idx_notifications_user_created_at", table_name="notifications")
+    op.drop_table("notifications")