feat(parser-react): class components, HOC unwrapping, graceful degradation — Gate 1 complete

[officialCodeWork]

Summary

TRACKER Step 1.6 — failure mode D4, and the close of Phase 1 (Gate 1).

What's in it

• Class components — React.Component / PureComponent / bare Component subclasses: render() supplies text/instances/events, the whole class body supplies lifecycle fetches (componentDidMount), this.state keys become class-state nodes, this.props.X accesses become props, and onClick={this.refresh} method references resolve as handlers.
• HOC unwrapping — const Panel = connect(mapState)(PanelInner) records an alias; <Panel/> materializes as an instance of PanelInner. Covers connect/withRouter/memo/forwardRef/observer/inject/withTranslation/styled, curried or not, alias chains bounded at 3.
• Graceful degradation — a class with no render() yields an incomplete-flagged node instead of silence; coderadar scan prints incomplete: N node(s) could not be fully parsed.
• Eval check fix the HOC case exposed: instance counts now match by definitionId, not tag name — <Panel/> is an instance of PanelInner even though the JSX never says so.

Gate 1 (from docs/testing-strategy.md)

Lineage precision ≥ 0.90, recall ≥ 0.80 across fixtures C2, C3, C5, A2, A7, A8, D4; zero forbidden hits

Passed: precision 1.000, recall 0.895, all seven failure-mode fixtures green, zero poison. Scorecard: 91 pass / 0 fail / 2 xfail (the C1 instance attributions — Phase 2's headline target).

Test plan

• 67 unit tests green (7 new: class detection, lifecycle attribution, class-state, method handlers, class props, HOC instance resolution, incomplete flag)
• pnpm eval gate OK; schema regenerated (class-state kind), drift gate green
• CLI incomplete-count verified on the fixture

Documentation

• TRACKER.md — 1.6 done, Gate 1 recorded, Status → Phase 2 step 2.1

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