perf(pm): remove obsolete resolver preload

[elrrrrrrr]

Summary

• remove the old resolver preload module after demand BFS takes over manifest scheduling
• drop preload-only progress events
• keep demand BFS progress events intact

Validation

• cargo fmt
• cargo check -p utoo-ruborist
• cargo test -p utoo-ruborist --lib
• cargo clippy --all-targets -- -D warnings --no-deps

Split Plan

Part of the resolver stack split from source PR #3028. This is a cleanup PR after #3043 switches scheduling to the demand mainloop.

[gemini-code-assist]

Code Review

This pull request removes the manifest preloading functionality from the resolver, including the deletion of the preload module and the removal of preload-related variants from the BuildEvent enum. I have no feedback to provide.

[github-actions]

📊 pm-bench-phases · f958e8b · linux (ubuntu-latest)

Workflow run — ant-design

PMs: utoo (this branch) · utoo-npm (latest published) · bun (latest)

npmjs.org

p0_full_cold

PM	wall	±σ	user	sys	RSS	pgMinor
utoo-next	8.47s	0.31s	10.88s	12.82s	1003M	126.4K
utoo-npm	8.28s	0.01s	11.29s	13.10s	984M	116.6K
utoo	8.70s	1.02s	11.80s	12.85s	948M	135.9K
bun	0.00s	0.00s	10.99s	10.81s	716M	343.4K

PM	vCtx	iCtx	netRX	netTX	cache	node_mod	lock
utoo-next	113.3K	80.0K	1.16G	5M	1.71G	1.70G	2M
utoo-npm	130.1K	96.3K	1.16G	5M	1.71G	1.70G	2M
utoo	111.0K	62.9K	1.16G	6M	1.71G	1.70G	2M
bun	14.7K	17.4K	1.19G	6M	1.86G	1.75G	-

p1_resolve

PM	wall	±σ	user	sys	RSS	pgMinor
bun	2.11s	0.12s	4.15s	1.10s	493M	169.2K
utoo-next	2.96s	0.06s	5.52s	1.79s	606M	88.1K
utoo-npm	3.17s	0.07s	5.72s	2.09s	617M	83.8K
utoo	2.57s	0.19s	6.21s	1.64s	641M	117.5K

PM	vCtx	iCtx	netRX	netTX	cache	node_mod	lock
bun	8.4K	4.6K	203M	3M	107M	-	1M
utoo-next	47.2K	73.1K	200M	2M	7M	3M	2M
utoo-npm	71.0K	89.3K	200M	2M	7M	3M	2M
utoo	14.3K	19.4K	201M	3M	7M	3M	2M

p3_cold_install

PM	wall	±σ	user	sys	RSS	pgMinor
bun	7.29s	0.49s	6.41s	10.71s	629M	223.0K
utoo-next	7.17s	1.40s	5.35s	11.85s	507M	60.1K
utoo-npm	6.62s	0.52s	5.31s	11.42s	472M	63.2K
utoo	6.15s	0.35s	5.38s	11.51s	472M	59.3K

PM	vCtx	iCtx	netRX	netTX	cache	node_mod	lock
bun	4.3K	6.9K	1017M	3M	1.76G	1.76G	1M
utoo-next	106.0K	53.8K	989M	3M	1.70G	1.70G	2M
utoo-npm	97.9K	51.2K	989M	2M	1.70G	1.70G	2M
utoo	90.2K	52.8K	989M	2M	1.70G	1.70G	2M

p4_warm_link

PM	wall	±σ	user	sys	RSS	pgMinor
bun	3.67s	0.06s	0.20s	2.51s	134M	31.6K
utoo-next	2.29s	0.05s	0.55s	3.96s	79M	18.7K
utoo-npm	2.34s	0.07s	0.57s	3.93s	78M	18.2K
utoo	2.20s	0.01s	0.54s	4.01s	79M	18.2K

PM	vCtx	iCtx	netRX	netTX	cache	node_mod	lock
bun	253	22	22K	17K	1.87G	1.76G	1M
utoo-next	41.7K	19.7K	5K	7K	1.70G	1.70G	2M
utoo-npm	41.2K	20.8K	7K	21K	1.70G	1.70G	2M
utoo	42.6K	20.8K	5K	6K	1.71G	1.70G	2M

npmmirror.com: no output captured.