feat(evidence): resolve curated evidence explicitly

harness/tht/cli/evidence_cmd.py

@@ -14,6 +14,7 @@ from tht.evidence import (
     EvidencePreparationError,
     PiEvidenceRestructurer,
     prepare_workspace_evidence,
+    resolve_workspace_evidence,
     validate_workspace_evidence,
 )
 
@@ -103,3 +104,38 @@ def validate_cmd(
     if all(finding.code in {"orphaned_unit", "unresolved_review_item"} for finding in report.findings):
         raise typer.Exit(code=3)
     raise typer.Exit(code=1)
+
+
+@evidence_app.command("resolve")
+def resolve_cmd(
+    workspace_root: Path,
+    evidence_id: str,
+    retire: Annotated[bool, typer.Option(help="Retire the Evidence unit.")] = False,
+    source: Annotated[Path | None, typer.Option(help="Relink the unit to this source/ path.")] = None,
+    json_output: Annotated[bool, typer.Option("--json", help="Write machine JSON to stdout.")] = False,
+) -> None:
+    """Explicitly retire or relink one Evidence unit without publishing it."""
+    if retire == (source is not None):
+        raise typer.BadParameter("choose exactly one of --retire or --source")
+    root = _canonical_worktree(workspace_root)
+    try:
+        report = resolve_workspace_evidence(root, evidence_id, retire=retire, source=source)
+    except EvidencePreparationError as error:
+        _emit({"schemaVersion": 1, "operation": "evidence_resolve", "status": "failed", "code": error.code}, json_output)
+        exit_code = 2 if error.code in {
+            "evidence_id_invalid", "resolve_mode_invalid", "source_invalid",
+        } else 1
+        raise typer.Exit(code=exit_code) from error
+    _emit({
+        "schemaVersion": 1,
+        "operation": "evidence_resolve",
+        "status": "resolved",
+        "action": report.action,
+        "evidenceId": report.evidence_id,
+        "sourceFile": report.source_file,
+        "findings": _findings_payload(report.findings),
+    }, json_output)
+    if report.findings:
+        if all(finding.code in {"orphaned_unit", "unresolved_review_item"} for finding in report.findings):
+            raise typer.Exit(code=3)
+        raise typer.Exit(code=1)