fix(graph): route the four spacetime sliders into d3 forces in non-galaxy mode #1263

Job	Run time
repo hygiene gate (no stray DBs/logs)	5s
coverage gate (Python 3.11)	6m 36s
encryption driver gate (Python 3.14)	32s
browser accessibility smoke	4m 45s
core + backends typecheck (Python 3.11)	33s
encryption driver gate (Python 3.10)	31s
docker smoke — path gate	7s
core floor (numpy-only, Python 3.9)	3m 57s
test + lint (full offline stack) (3.14)	4m 20s
test + lint (full offline stack) (3.13)	4m 53s
encryption driver gate (Python 3.12)	28s
encryption driver gate (Python 3.13)	32s
test + lint (full offline stack) (3.10)	5m 15s
Pi extension (windows-latest, Python 3.11, Node 24)	1m 56s
Pi extension (ubuntu-latest, Python 3.10, Node 22.19.0)	1m 3s
test + lint (full offline stack) (3.11)	4m 44s
build + install wheel	34s
test + lint (full offline stack) (3.12)	3m 59s
encryption driver gate (Python 3.11)	30s
docker build + health smoke	1m 53s
	47m 13s

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