067340b6fc
parseJsonlToTree resolves `_parent` via a `Map<id, node>` that's
overwritten on duplicate ids. A JSONL line whose `_parent` equals its
own `id` (or otherwise references a node that ends up being itself
after the map overwrite) produces `node.children = [node]` — a cyclic
graph. Without a cycle guard, `collectIds` would recurse forever
walking node → node.children[0] → node → … and never surface the
duplicate or fail the dispatch.
Two-part guard:
1. Reference-identity `WeakSet` (visitedRefs) — short-circuits the
recursion the moment we re-enter the same node object.
2. Early return after pushing a duplicate id — once we've recorded
the dup, descending into its (potentially cyclic) subtree adds no
information.
Either guard alone would prevent the stack overflow; together they
make the dup-detection robust against any malformed input shape that
parseJsonlToTree might produce.
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| .. | ||
| public | ||
| server | ||
| src | ||
| CLAUDE.md | ||
| components.json | ||
| dev.ts | ||
| package.json | ||
| tsconfig.json | ||
| vite.config.ts | ||