feat(staggered): materialize non-estimable (g,t) cells as NaN in Call… #2526

Job	Run time
Pure Python Fallback	1h 31m 21s
Rust Unit Tests (ubuntu-latest)	1m 16s
Rust Unit Tests (ubuntu-24.04-arm)	1m 27s
Rust Unit Tests (windows-latest)	2m 15s
Rust Unit Tests (macos-latest)	1m 37s
Python Tests (ubuntu-latest, py3.13)	1h 3m 5s
Python Tests (ubuntu-latest, py3.14)	1h 4m 30s
Python Tests (macos-latest, py3.11)	38m 23s
Python Tests (macos-latest, py3.14)	32m 49s
Python Tests (ubuntu-24.04-arm, py3.11)	41m 32s
Python Tests (macos-latest, py3.13)	33m 10s
Python Tests (ubuntu-24.04-arm, py3.14)	37m 4s
Python Tests (ubuntu-24.04-arm, py3.13)	35m 49s
Python Tests (windows-latest, py3.13)	1h 7m 38s
Python Tests (windows-latest, py3.14)	1h 0m 58s
Python Tests (ubuntu-latest, py3.11)	1h 1m 50s
Python Tests (windows-latest, py3.11)	59m 7s
	11h 33m 51s

Provide feedback