Add dpa on vendors

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

pkg/coredata/migrations/20250813T141529Z.sql

@@ -0,0 +1,29 @@
+CREATE TABLE vendor_data_privacy_agreements (
+    id TEXT PRIMARY KEY,
+    organization_id TEXT NOT NULL,
+    tenant_id TEXT NOT NULL,
+    vendor_id TEXT NOT NULL,
+    valid_from DATE,
+    valid_until DATE,
+    file_id TEXT NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL,
+    updated_at TIMESTAMP WITH TIME ZONE NOT NULL,
+
+    CONSTRAINT vendor_data_privacy_agreements_organization_vendor_unique
+        UNIQUE (organization_id, vendor_id),
+
+    CONSTRAINT vendor_data_privacy_agreements_file_id_unique
+        UNIQUE (file_id),
+
+    CONSTRAINT vendor_data_privacy_agreements_organization_id_fkey
+        FOREIGN KEY (organization_id)
+        REFERENCES organizations(id)
+        ON UPDATE CASCADE
+        ON DELETE CASCADE,
+
+    CONSTRAINT vendor_data_privacy_agreements_file_id_fkey
+        FOREIGN KEY (file_id)
+        REFERENCES files(id)
+        ON UPDATE CASCADE
+        ON DELETE CASCADE
+);