Add multi-approver support

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/coredata/migrations/20260213T120000Z.sql

@@ -0,0 +1,36 @@
+-- Create document_approvers join table
+CREATE TABLE document_approvers (
+    document_id TEXT NOT NULL REFERENCES documents(id) ON DELETE CASCADE,
+    approver_profile_id TEXT NOT NULL REFERENCES iam_membership_profiles(id) ON UPDATE CASCADE ON DELETE RESTRICT,
+    tenant_id TEXT NOT NULL,
+    organization_id TEXT NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL,
+    PRIMARY KEY (document_id, approver_profile_id)
+);
+
+-- Create document_version_approvers join table
+CREATE TABLE document_version_approvers (
+    document_version_id TEXT NOT NULL REFERENCES document_versions(id) ON DELETE CASCADE,
+    approver_profile_id TEXT NOT NULL REFERENCES iam_membership_profiles(id) ON UPDATE CASCADE ON DELETE RESTRICT,
+    tenant_id TEXT NOT NULL,
+    organization_id TEXT NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL,
+    PRIMARY KEY (document_version_id, approver_profile_id)
+);
+
+-- Migrate existing approver data from documents to document_approvers
+INSERT INTO document_approvers (document_id, approver_profile_id, tenant_id, organization_id, created_at)
+SELECT id, approver_profile_id, tenant_id, organization_id, created_at
+FROM documents
+WHERE approver_profile_id IS NOT NULL
+  AND deleted_at IS NULL;
+
+-- Migrate existing approver data from document_versions to document_version_approvers
+INSERT INTO document_version_approvers (document_version_id, approver_profile_id, tenant_id, organization_id, created_at)
+SELECT id, approver_profile_id, tenant_id, organization_id, created_at
+FROM document_versions
+WHERE approver_profile_id IS NOT NULL;
+
+-- Drop the old columns
+ALTER TABLE documents DROP COLUMN approver_profile_id;
+ALTER TABLE document_versions DROP COLUMN approver_profile_id;