refactor(harness): route workflow persistence through repositories

harness/tht/cli/decision_cmd.py

@@ -8,7 +8,7 @@ from pydantic import ValidationError
 
 from tht.cli.config_cmd import CONFIG_OPT
 from tht.cli.schema_cmd import _load_config_or_exit
-from tht.cli.session_cmd import load_session_or_exit, session_dir
+from tht.cli.session_cmd import load_session_or_exit, load_snapshot_or_exit, session_repository
 
 decision_app = typer.Typer(help="Decisioni del reviewer (per sessione, append-only)")
 
@@ -20,7 +20,7 @@ def add_join_set_cmd(
     config: Path = CONFIG_OPT,
 ) -> None:
     """Registra un insieme completo di join con un'unica sostituzione atomica del ledger."""
-    from tht.decisions import DecisionInput, append_decisions
+    from tht.decisions import DecisionInput
 
     cfg = _load_config_or_exit(config)
     load_session_or_exit(cfg, session)
@@ -40,7 +40,7 @@ def add_join_set_cmd(
     from tht.workflow import load_workflow
 
     require_phase_or_exit(cfg, session, load_workflow().decision_min_phase("join_modified"))
-    records = append_decisions(session_dir(cfg, session), decisions)
+    records = session_repository(cfg).append_decisions(session, decisions)
     typer.secho(
         f"OK: registrato set atomico di {len(records)} join.",
         fg=typer.colors.GREEN,
@@ -61,7 +61,7 @@ def add_cmd(
     config: Path = CONFIG_OPT,
 ) -> None:
     """Registra una decisione del reviewer nella sessione."""
-    from tht.decisions import DecisionType, append_decision
+    from tht.decisions import DecisionType
 
     cfg = _load_config_or_exit(config)
     load_session_or_exit(cfg, session)
@@ -82,7 +82,7 @@ def add_cmd(
     from tht.workflow import load_workflow
 
     require_phase_or_exit(cfg, session, load_workflow().decision_min_phase(type))
-    sdir = session_dir(cfg, session)
+    snapshot = load_snapshot_or_exit(cfg, session)
     if type == "cte_approved":
         # Un CTE si approva solo se appartiene al piano persistito. Senza piano
         # (o con subject fuori piano) l'approvazione e' priva di significato:
@@ -90,7 +90,7 @@ def add_cmd(
         # dove fu registrato un cte_approved:cte_plan senza alcun cte_plan.json.
         from tht.phase import cte_plan
 
-        plan = cte_plan(sdir)
+        plan = cte_plan(snapshot)
         if not plan:
             typer.secho(
                 "ERRORE: nessun piano CTE (cte_plan.json) in sessione. Persisti prima "
@@ -105,10 +105,10 @@ def add_cmd(
                 fg=typer.colors.RED, err=True,
             )
             raise typer.Exit(code=5)
-    record = append_decision(
-        sdir, type=type, subject=subject,
-        detail=detail, rationale=rationale, retracts=retracts,
-    )
+    record = session_repository(cfg).append_decisions(session, [{
+        "type": type, "subject": subject, "detail": detail,
+        "rationale": rationale, "retracts": retracts,
+    }])[0]
     typer.secho(f"OK: decisione [{record.seq}] {record.type}: {record.subject}",
                 fg=typer.colors.GREEN)
 
@@ -123,19 +123,18 @@ def retract_cmd(
     Granularita' (a) del rollback §4.8: 'rispondi di nuovo a questa domanda'. Scrive un
     marker decision_retracted (append-only, l'audit resta) che effective_decisions onora;
     il widget corrente puo' essere riproposto. Non cambia la fase."""
-    from tht.decisions import append_decision
     from tht.phase import effective_decisions
 
     cfg = _load_config_or_exit(config)
     load_session_or_exit(cfg, session)
-    sdir = session_dir(cfg, session)
+    snapshot = load_snapshot_or_exit(cfg, session)
 
     # Ultima decisione NON-meta della vista effective = quella associata al widget corrente.
     meta = {
         "phase_approved", "phase_auto_approved", "phase_reopened",
         "phase_skipped", "decision_retracted",
     }
-    substantive = [d for d in effective_decisions(sdir) if d.type not in meta]
+    substantive = [d for d in effective_decisions(snapshot) if d.type not in meta]
     if not substantive:
         typer.secho(
             "Nessuna decisione sostanziale da ritirare nella fase corrente.",
@@ -143,10 +142,10 @@ def retract_cmd(
         )
         raise typer.Exit(code=6)
     target = substantive[-1]
-    record = append_decision(
-        sdir, type="decision_retracted", subject=target.subject,
-        rationale=f"ritira [{target.seq}] {target.type}", retracts=target.seq,
-    )
+    record = session_repository(cfg).append_decisions(session, [{
+        "type": "decision_retracted", "subject": target.subject,
+        "rationale": f"ritira [{target.seq}] {target.type}", "retracts": target.seq,
+    }])[0]
     typer.secho(
         f"OK: ritirata decisione [{target.seq}] {target.type}: {target.subject} "
         f"(marker #{record.seq}).",
@@ -160,11 +159,8 @@ def list_cmd(
     config: Path = CONFIG_OPT,
 ) -> None:
     """Elenca le decisioni della sessione."""
-    from tht.decisions import list_decisions
-
     cfg = _load_config_or_exit(config)
-    load_session_or_exit(cfg, session)
-    decisions = list_decisions(session_dir(cfg, session))
+    decisions = load_snapshot_or_exit(cfg, session).decisions
     if not decisions:
         typer.echo("Nessuna decisione registrata.")
         return