chore: import upstream snapshot with attribution

internal/indexer/parse_errors.go

@@ -0,0 +1,36 @@
+package indexer
+
+import (
+	"github.com/zzet/gortex/internal/graph"
+	"github.com/zzet/gortex/internal/parser"
+)
+
+// stampParseErrors checks the parse tree on result for ERROR/MISSING
+// nodes and stamps the count plus a boolean flag onto the file node.
+//
+// Surfacing this on KindFile lets index_health rank files by parse
+// failure and lets agents skip badly-broken sources without re-doing
+// the parse. Files whose extractor doesn't keep result.Tree (rare;
+// mostly "skip-grammar" stubs that emit a file node and call it
+// done) get no stamp — absence of the meta key means "unknown", not
+// "clean".
+func stampParseErrors(result *parser.ExtractionResult) {
+	if result == nil || result.Tree == nil {
+		return
+	}
+	if !result.Tree.HasParseErrors() {
+		return
+	}
+	count := result.Tree.CountParseErrors()
+	for _, n := range result.Nodes {
+		if n.Kind != graph.KindFile {
+			continue
+		}
+		if n.Meta == nil {
+			n.Meta = map[string]any{}
+		}
+		n.Meta["parse_errors"] = count
+		n.Meta["has_parse_errors"] = true
+		break
+	}
+}