release: v1.9.0 — IRM-алерты отдельно от инцидентов

- Alembic 005: таблицы irm_alerts и incident_alert_links
- Модуль alerts: API/UI, Ack/Resolve, привязка к инциденту через alert_ids
- Вебхук Grafana: одна транзакция ingress + irm_alerts; разбор payload в grafana_payload
- По умолчанию инцидент из вебхука не создаётся (AUTO_INCIDENT_FROM_ALERT)
- Документация IRM_GRAFANA_PARITY.md, обновления IRM.md и CHANGELOG

Made-with: Cursor

alembic/versions/005_irm_alerts.py

@@ -0,0 +1,74 @@
+"""IRM: алерты отдельно от инцидентов (ack/resolve), связь N:M инцидент↔алерт
+
+Revision ID: 005_irm_alerts
+Revises: 004_grafana_catalog
+Create Date: 2026-04-03
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "005_irm_alerts"
+down_revision: Union[str, None] = "004_grafana_catalog"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.execute(
+        """
+        CREATE TABLE IF NOT EXISTS irm_alerts (
+            id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+            ingress_event_id uuid NOT NULL UNIQUE REFERENCES ingress_events(id) ON DELETE CASCADE,
+            status text NOT NULL DEFAULT 'firing'
+                CHECK (status IN ('firing', 'acknowledged', 'resolved', 'silenced')),
+            title text NOT NULL DEFAULT '',
+            severity text NOT NULL DEFAULT 'warning',
+            source text NOT NULL DEFAULT 'grafana',
+            grafana_org_slug text,
+            service_name text,
+            labels jsonb NOT NULL DEFAULT '{}'::jsonb,
+            fingerprint text,
+            acknowledged_at timestamptz,
+            acknowledged_by text,
+            resolved_at timestamptz,
+            resolved_by text,
+            created_at timestamptz NOT NULL DEFAULT now(),
+            updated_at timestamptz NOT NULL DEFAULT now()
+        );
+        """
+    )
+    op.execute(
+        """
+        CREATE INDEX IF NOT EXISTS irm_alerts_status_created_idx
+        ON irm_alerts (status, created_at DESC);
+        """
+    )
+    op.execute(
+        """
+        CREATE INDEX IF NOT EXISTS irm_alerts_ingress_event_id_idx
+        ON irm_alerts (ingress_event_id);
+        """
+    )
+    op.execute(
+        """
+        CREATE TABLE IF NOT EXISTS incident_alert_links (
+            incident_id uuid NOT NULL REFERENCES incidents(id) ON DELETE CASCADE,
+            alert_id uuid NOT NULL REFERENCES irm_alerts(id) ON DELETE CASCADE,
+            PRIMARY KEY (incident_id, alert_id)
+        );
+        """
+    )
+    op.execute(
+        """
+        CREATE INDEX IF NOT EXISTS incident_alert_links_alert_idx
+        ON incident_alert_links (alert_id);
+        """
+    )
+
+
+def downgrade() -> None:
+    op.execute("DROP TABLE IF EXISTS incident_alert_links;")
+    op.execute("DROP TABLE IF EXISTS irm_alerts;")