Move document type from document to document version

Follow the same pattern used for classification: document type now lives
exclusively on DocumentVersion. A migration copies existing values from
documents to their versions. The document filter uses a subquery on the
latest version. All three API surfaces (GraphQL, MCP, CLI), resolvers,
frontend, and e2e tests are updated accordingly.

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

pkg/server/api/console/v1/schema.graphql

@@ -2543,7 +2543,6 @@ type Document implements Node {
     id: ID!
     title: String!
     description: String
-    documentType: DocumentType!
     currentPublishedMajor: Int
     currentPublishedMinor: Int
     trustCenterVisibility: TrustCenterVisibility!
@@ -2583,7 +2582,6 @@ type EmployeeDocument
     id: ID!
     title: String!
     description: String
-    documentType: DocumentType!
     signed: Boolean @goField(forceResolver: true)
     approvalState: DocumentVersionApprovalDecisionState @goField(forceResolver: true)
 
@@ -2608,6 +2606,7 @@ type EmployeeDocumentVersion
     minor: Int!
     status: DocumentVersionStatus!
     classification: DocumentClassification!
+    documentType: DocumentType!
     signed: Boolean! @goField(forceResolver: true)
     approvalDecision: DocumentVersionApprovalDecision @goField(forceResolver: true)
     publishedAt: Datetime
@@ -4642,7 +4641,6 @@ input UpdateDocumentInput {
     id: ID!
     title: String
     content: String
-    documentType: DocumentType
     trustCenterVisibility: TrustCenterVisibility
 }
 
@@ -5529,6 +5527,7 @@ type DocumentVersion implements Node {
     changelog: String!
     title: String!
     classification: DocumentClassification!
+    documentType: DocumentType!
     approvers(
         first: Int
         after: CursorKey
@@ -5900,6 +5899,7 @@ input UpdateDocumentVersionInput {
     documentVersionId: ID!
     content: String
     classification: DocumentClassification
+    documentType: DocumentType
 }
 
 input CancelSignatureRequestInput {

pkg/server/api/console/v1/types/document.go

@@ -80,7 +80,6 @@ func NewDocument(document *coredata.Document) *Document {
 		Organization: &Organization{
 			ID: document.OrganizationID,
 		},
-		DocumentType:          document.DocumentType,
 		CurrentPublishedMajor: document.CurrentPublishedMajor,
 		CurrentPublishedMinor: document.CurrentPublishedMinor,
 		TrustCenterVisibility: document.TrustCenterVisibility,

pkg/server/api/console/v1/types/document_version.go

@@ -82,6 +82,7 @@ func NewDocumentVersion(documentVersion *coredata.DocumentVersion) *DocumentVers
 		Content:        documentVersion.Content,
 		Status:         documentVersion.Status,
 		Classification: documentVersion.Classification,
+		DocumentType:   documentVersion.DocumentType,
 		PublishedAt:    documentVersion.PublishedAt,
 		Changelog:      documentVersion.Changelog,
 		CreatedAt:      documentVersion.CreatedAt,

pkg/server/api/console/v1/types/employee_document.go

@@ -70,6 +70,7 @@ type (
 		Minor          int
 		Status         coredata.DocumentVersionStatus
 		Classification coredata.DocumentClassification
+		DocumentType   coredata.DocumentType
 		PublishedAt    *time.Time
 		CreatedAt      time.Time
 		UpdatedAt      time.Time

pkg/server/api/console/v1/v1_resolver.go

@@ -2168,6 +2168,7 @@ func (r *employeeDocumentResolver) Versions(ctx context.Context, obj *types.Empl
 			Minor:          v.Minor,
 			Status:         v.Status,
 			Classification: v.Classification,
+			DocumentType:   v.DocumentType,
 			PublishedAt:    v.PublishedAt,
 			CreatedAt:      v.CreatedAt,
 			UpdatedAt:      v.UpdatedAt,
@@ -5142,10 +5143,10 @@ func (r *mutationResolver) CreateDocument(ctx context.Context, input types.Creat
 		ctx,
 		probo.CreateDocumentRequest{
 			OrganizationID:        input.OrganizationID,
-			DocumentType:          input.DocumentType,
 			Title:                 input.Title,
 			Content:               content,
 			Classification:        input.Classification,
+			DocumentType:          input.DocumentType,
 			TrustCenterVisibility: input.TrustCenterVisibility,
 		},
 	)
@@ -5180,7 +5181,6 @@ func (r *mutationResolver) UpdateDocument(ctx context.Context, input types.Updat
 		probo.UpdateDocumentRequest{
 			DocumentID:            input.ID,
 			Title:                 input.Title,
-			DocumentType:          input.DocumentType,
 			TrustCenterVisibility: input.TrustCenterVisibility,
 		},
 	)
@@ -5923,6 +5923,7 @@ func (r *mutationResolver) UpdateDocumentVersion(ctx context.Context, input type
 			ID:             input.DocumentVersionID,
 			Content:        input.Content,
 			Classification: input.Classification,
+			DocumentType:   input.DocumentType,
 		},
 	)
 	if err != nil {