refactor(evidence): migrate runtime consumption (#29)

harness/tht/session/artifacts.py

@@ -1,49 +1,17 @@
+"""Legacy session-artifact entrypoints retained during the Evidence migration."""
+
 from pathlib import Path
 
 from tht.decisions import DecisionRecord
 from tht.session.models import SchemaLinking
 
 
-def _find_evidence_file(evidence_root: Path, evidence_id: str) -> str:
-    # New deployments resolve only immutable materialized files from ACTIVE.  Keep
-    # the legacy curated-tree fallback for sessions created before a corpus exists.
-    corpus_root = evidence_root.parent.parent / "corpus"
-    if corpus_root.exists():
-        from tht.corpus.store import CorpusStore
-        from tht.search.evidence import resolve_evidence_file
-        return resolve_evidence_file(
-            CorpusStore(corpus_root), evidence_id,
-            materialized_root=evidence_root.parent / ".materialized-evidence",
-        )
-    for match in evidence_root.rglob(f"{evidence_id}.md"):
-        return str(match)
-    return ""
-
-
 def build_evidence_entries(
     decisions: list[DecisionRecord],
     linking: SchemaLinking,
     evidence_root: Path,
 ) -> list[dict]:
-    """Elenco {id, file, esito, decision_seq}: evidence citate nello schema linking
-    (esito 'usata') e decisioni esplicite del reviewer (accettata/scartata, che
-    prevalgono sul linking)."""
-    entries: dict[str, dict] = {}
-    for candidate in linking.candidates:
-        for evidence_id in candidate.evidence:
-            entries.setdefault(evidence_id, {
-                "id": evidence_id,
-                "file": _find_evidence_file(evidence_root, evidence_id),
-                "esito": "usata",
-                "decision_seq": candidate.decision_seq,
-            })
-    for d in decisions:
-        if d.type not in ("evidence_accepted", "evidence_rejected"):
-            continue
-        entries[d.subject] = {
-            "id": d.subject,
-            "file": _find_evidence_file(evidence_root, d.subject),
-            "esito": "accettata" if d.type == "evidence_accepted" else "scartata",
-            "decision_seq": d.seq,
-        }
-    return list(entries.values())
+    """Compatibility shim for callers not yet migrated to ``tht.evidence``."""
+    from tht.evidence import project_session
+
+    return project_session(decisions, linking, evidence_root)