feat(evidence): prepare curated evidence incrementally

harness/tests/test_evidence_cli.py

@@ -0,0 +1,40 @@
+import json
+
+from typer.testing import CliRunner
+
+from tht.cli import app
+
+
+def test_evidence_authoring_commands_are_distinct_from_runtime_preprocessing():
+    result = CliRunner().invoke(app, ["evidence", "--help"])
+
+    assert result.exit_code == 0
+    assert "prepare" in result.output
+    assert "validate" in result.output
+
+
+def test_evidence_validate_json_is_pristine_and_reports_review_required(monkeypatch, tmp_path):
+    from tht.cli import evidence_cmd
+    from tht.evidence import ValidationFinding, ValidationReport
+
+    monkeypatch.setattr(evidence_cmd, "_canonical_worktree", lambda root: root)
+    monkeypatch.setattr(evidence_cmd, "validate_workspace_evidence", lambda root: ValidationReport((
+        ValidationFinding("error", "unresolved_review_item", "curated/domain/x.md", "Review needed."),
+    )))
+
+    result = CliRunner().invoke(app, ["evidence", "validate", str(tmp_path), "--json"])
+
+    assert result.exit_code == 3
+    assert result.stderr == ""
+    assert json.loads(result.stdout) == {
+        "findings": [{
+            "code": "unresolved_review_item",
+            "message": "Review needed.",
+            "path": "curated/domain/x.md",
+            "severity": "error",
+        }],
+        "operation": "evidence_validate",
+        "publishable": False,
+        "schemaVersion": 1,
+        "status": "review_required",
+    }