test(zigux): add lane16 duplicate replay test alias

[adybag14-cyber]

Summary

• update zigux/tests/phase1_rbtree_duplicate_bench_replay_build.zig so the existing duplicate-range rbtree replay build shard also exposes a plain test alias
• keep the existing focused phase1-rbtree-duplicate-bench-replay route intact
• keep the change stacked and one-file scoped, with no edits to the replay body, tools/lib/rbtree.zig, shared Phase 1 bench files, checkers, docs, fixtures, or workflows

Why This Lane

• Lane 16 owns the Phase 1 hardening gates around bench-sensitive helper packets
• PR test(zigux): add lane16 rbtree duplicate bench replay #12794 already carries the duplicate-range replay and an older focused build shard, but it predates the newer Lane 16 runner convention where each shard also has a plain test route
• this follow-up makes the duplicate-range runner consistent with the newer same-lane shards without widening the aggregate bench route or helper implementation surface

Validation

• authenticated base-branch reread confirmed zigux/tests/phase1_rbtree_duplicate_bench_replay.zig and zigux/tests/phase1_rbtree_duplicate_bench_replay_build.zig exist on branch zigux-builder/lane16-rbtree-duplicate-bench-replay-current-master-20260527t2045z
• focused scratch validation used the attached Zigux-master.zip scaffold plus the active PR test(zigux): add lane16 rbtree duplicate bench replay #12794 replay/build files and attached Zig 0.17.0-dev.87+9b177a7d2 toolchain
• zig fmt --check zigux/tests/phase1_rbtree_duplicate_bench_replay.zig zigux/tests/phase1_rbtree_duplicate_bench_replay_build.zig tools/lib/rbtree.zig
• zig build --build-file zigux/tests/phase1_rbtree_duplicate_bench_replay_build.zig --list-steps
  • result: step list includes phase1-rbtree-duplicate-bench-replay and test
• zig build phase1-rbtree-duplicate-bench-replay --build-file zigux/tests/phase1_rbtree_duplicate_bench_replay_build.zig --summary all
  • result: Build Summary: 3/3 steps succeeded; 2/2 tests passed
• zig build test --build-file zigux/tests/phase1_rbtree_duplicate_bench_replay_build.zig --summary all
  • result: Build Summary: 3/3 steps succeeded; 2/2 tests passed
• authenticated compare against PR test(zigux): add lane16 rbtree duplicate bench replay #12794 base branch:
  • changed files: 1
  • result: ahead_by: 1
  • result: behind_by: 0
  • result: status: ahead

Scope

• lane: Lane 16 - Phase 1 hardening gates
• session issue: Zigux session 2026-05-29 07:46 UTC #14859
• base PR: test(zigux): add lane16 rbtree duplicate bench replay #12794
• base branch: zigux-builder/lane16-rbtree-duplicate-bench-replay-current-master-20260527t2045z
• branch: zigux-builder/lane16-rbtree-duplicate-replay-test-alias-20260529t0735z
• file:
  • zigux/tests/phase1_rbtree_duplicate_bench_replay_build.zig

Coordination

• keep PR test(zigux): add lane16 rbtree duplicate bench replay #12794 as the duplicate-range replay body and original runner base
• keep PR test(zigux): add lane16 rbtree findAdd replay runner #14806 as the separate findAdd(...) replay runner frontier
• keep PR test(zigux): add lane16 rbtree postorder replay runner #14749 as the separate postorder replay runner frontier
• keep PR test(zigux): add lane16 bitmap-window bench replay runner #14688 as the separate bitmap-window replay runner frontier
• keep PR test(zigux): add lane16 rbtree cached bench replay runner #14628 as the separate cached rbtree replay runner frontier
• keep PR test(zigux): add lane16 rbtree duplicate mutation replay runner #14569 as the separate duplicate-mutation replay runner frontier
• keep PR test(zigux): restack lane16 hweight bench replay runner #14511 as the separate hweight replay runner frontier
• keep PR test(zigux): restack lane16 list_sort bench replay runner #14450 as the separate list_sort replay runner frontier
• keep checker, workflow, aggregate bench, and helper implementation fronts untouched

Validation Boundary

Direct live checkout remains unavailable in this scheduled container, so live repo grounding and publication used authenticated GitHub reads/writes plus focused snapshot-backed local validation.

[coderabbitai]

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch zigux-builder/lane16-rbtree-duplicate-replay-test-alias-20260529t0735z

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