dsh-session-import: Import Officially Exported DSH Sessions, Subsessions, and Attachments

`dsh-session-import` is an MIT-licensed plugin provided by kinyokun for restoring ZIP or JSONL files exported via the official DSH `/export` command into resumable chat sessions. It supports file parsing, SHA-256 verification, sync status, and importing tree structures. After installation, restart `dsh web`, then click “Import Conversation” and select a file to complete the process without overwriting the original session. The plugin has limitations on size, quantity, and format (for example, encrypted ZIP files are not supported), runs with the permissions of the current process, and uses `~/.dsh/sessions-import-recovery/` as the recovery area.