Add durable bounded corrections for early LLM phases and validated review

src/viano_bug_analysis/case/assembler.py

@@ -84,6 +84,20 @@ class CaseAssembler:
         prior_refs = []
         for _, checkpoint in reversed(chain):
             details = checkpoint["details"]
+            if details.get("operation") == "early-correction":
+                ref = details.get("artifact_ref")
+                if not isinstance(ref, str) or not ref.startswith(("analysis/interpretations/", "analysis/hypotheses/")) or "/corrections/" not in ref:
+                    raise CaseBuildError("PREVIOUS_CASE", "Invalid correction artifact checkpoint")
+                doc = load(ref, "early-correction")
+                from viano_bug_analysis.analysis.correction import base, digest, PHASES
+                phase = details.get("phase")
+                expected = base(phase, checkpoint["analysis_revision"]) + "/" + (
+                    f"attempt-{doc.get('attempt', 0):04d}.json" if doc["kind"] == "attempt" else doc["kind"] + ".json") if phase in PHASES else None
+                if (ref != expected or digest(doc) != details.get("artifact_sha256") or doc["phase"] != phase
+                        or doc["analysis_revision"] != checkpoint["analysis_revision"]
+                        or any(doc[f] != manifest[f] for f in ("case_id", "package_id"))):
+                    raise CaseBuildError("PREVIOUS_CASE", "Invalid correction artifact checkpoint")
+                excluded.add(ref)
             if details.get("operation") in {"change-request-start", "change-request-complete", "change-request-rejected", "output-validated"}:
                 fields = ("context_ref", "decision_ref", "change_request_ref", "summary_ref", "failure_ref", "error_ref", "validation_ref")
                 for field in fields: