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Fix hub analysis and bounded trails; audit graph comparison evidence #1022

Job	Run time
code-graph-v1-fixtures	23m 2s
x86_64-pc-windows-msvc	42m 53s
quality	24m 17s
dependency-audit	58m 0s
code-graph-client-platforms (ubuntu-24.04)	33s
javascript-and-vscode	4m 29s
dependency-policy	58m 0s
x86_64-apple-darwin	26m 57s
aarch64-pc-windows-msvc	30m 58s
code-graph-client-platforms (macos-15)	37s
aarch64-unknown-linux-gnu	9m 57s
x86_64-unknown-linux-gnu	58m 0s
aarch64-apple-darwin	11m 12s
code-graph-client-platforms (windows-2025)	47s
	5h 49m 42s