feat: implement article version content storage and reconstruction logic; enhance article repository with version management

server/internal/tenant/repository/workspace_repo.go

@@ -4,9 +4,6 @@ import (
 	"context"
 	"time"
 
-	"github.com/jackc/pgx/v5/pgtype"
-
-	"github.com/geo-platform/tenant-api/internal/shared/contentstats"
 	"github.com/geo-platform/tenant-api/internal/tenant/repository/generated"
 )
 
@@ -76,7 +73,7 @@ func (r *workspaceRepository) GetRecentArticles(ctx context.Context, tenantID in
 			GenerationMode: nullableText(row.GenerationMode),
 			CreatedAt:      timeFromTimestamp(row.CreatedAt),
 			Title:          nullableText(row.Title),
-			WordCount:      resolveWorkspaceWordCount(row.MarkdownContent, intFromInt4(row.WordCount)),
+			WordCount:      intFromInt4(row.WordCount),
 			SourceLabel:    nullableText(row.SourceLabel),
 			TemplateName:   nullableText(row.TemplateName),
 		})
@@ -107,12 +104,3 @@ func (r *workspaceRepository) GetActivePlanForTenant(ctx context.Context, tenant
 		EndAt:           timeFromTimestamp(row.EndAt),
 	}, nil
 }
-
-func resolveWorkspaceWordCount(markdown pgtype.Text, stored int) int {
-	if markdown.Valid {
-		if counted := contentstats.CountWords(markdown.String); counted > 0 {
-			return counted
-		}
-	}
-	return stored
-}