[MM-56073] MMCTL delete post command (#27539)

Co-authored-by: Ben Schumacher <ben.schumacher@mattermost.com>

server/channels/store/store.go

@@ -361,6 +361,7 @@ type PostStore interface {
 	Get(ctx context.Context, id string, opts model.GetPostsOptions, userID string, sanitizeOptions map[string]bool) (*model.PostList, error)
 	GetSingle(rctx request.CTX, id string, inclDeleted bool) (*model.Post, error)
 	Delete(rctx request.CTX, postID string, timestamp int64, deleteByID string) error
+	PermanentDelete(rctx request.CTX, postID string) error
 	PermanentDeleteByUser(rctx request.CTX, userID string) error
 	PermanentDeleteByChannel(rctx request.CTX, channelID string) error
 	GetPosts(options model.GetPostsOptions, allowFromCache bool, sanitizeOptions map[string]bool) (*model.PostList, error)
@@ -720,6 +721,7 @@ type FileInfoStore interface {
 	InvalidateFileInfosForPostCache(postID string, deleted bool)
 	AttachToPost(c request.CTX, fileID string, postID string, channelID, creatorID string) error
 	DeleteForPost(c request.CTX, postID string) (string, error)
+	PermanentDeleteForPost(rctx request.CTX, postID string) error
 	PermanentDelete(c request.CTX, fileID string) error
 	PermanentDeleteBatch(ctx request.CTX, endTime int64, limit int64) (int64, error)
 	PermanentDeleteByUser(ctx request.CTX, userID string) (int64, error)