feat(harness): tht session documents --json read command

harness/tht/cli/session_cmd.py

@@ -218,6 +218,25 @@ def delete_cmd(session_id: str = typer.Argument(...), config: Path = CONFIG_OPT)
     typer.secho(f"OK: sessione {session_id} eliminata.", fg=typer.colors.GREEN)
 
 
+@session_app.command("documents")
+def documents_cmd(
+    session_id: str = typer.Argument(...),
+    json_out: bool = typer.Option(False, "--json", help="Emetti JSON su stdout (pristine)."),
+    config: Path = CONFIG_OPT,
+) -> None:
+    """Documenti di sola lettura della sessione (domanda, rivista, schema, SQL, report, decisioni)."""
+    from tht.session.store import build_documents
+
+    cfg = _load_config_or_exit(config)
+    manifest = load_session_or_exit(cfg, session_id)
+    docs = build_documents(manifest, session_dir(cfg, session_id))
+    if json_out:
+        typer.echo(json.dumps(docs, ensure_ascii=False, indent=2))
+        return
+    for d in docs:
+        typer.echo(f"[{d['phase']}] {d['title']} ({d['format']})")
+
+
 def session_problems(cfg, session_id: str) -> list[str]:
     """Problemi del Blocco 3 (decisioni + schema_linking). Riusato da check e finalize."""
     import json