Add slack integration

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>

pkg/coredata/migrations/20251016T174950Z.sql

@@ -0,0 +1,25 @@
+CREATE TYPE connector_protocol AS ENUM ('OAUTH2');
+CREATE TYPE connector_provider AS ENUM ('SLACK');
+
+ALTER TABLE connectors DROP COLUMN type;
+ALTER TABLE connectors DROP COLUMN name;
+
+ALTER TABLE connectors ADD COLUMN protocol connector_protocol NOT NULL;
+ALTER TABLE connectors ADD COLUMN provider connector_provider NOT NULL;
+ALTER TABLE connectors ADD COLUMN settings JSONB;
+
+DROP INDEX IF EXISTS idx_connectors_organization_id_name;
+
+CREATE TABLE slack_messages (
+	id TEXT PRIMARY KEY,
+	tenant_id TEXT NOT NULL,
+	organization_id TEXT NOT NULL,
+	body TEXT NOT NULL,
+	created_at TIMESTAMP WITH TIME ZONE NOT NULL,
+	updated_at TIMESTAMP WITH TIME ZONE NOT NULL,
+	sent_at TIMESTAMP WITH TIME ZONE,
+	error TEXT,
+	CONSTRAINT fk_slack_messages_organization_id FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE
+);
+
+CREATE INDEX ON slack_messages (sent_at) WHERE sent_at IS NULL AND error IS NULL;