chore: file/function length caps — ruff PLR0915/PLR0912 + check_file_… #63

Job	Run time
Lint & Format	11s
Unit tests	3s
Type Check	4s
Pre-commit	11s
Coverage	12s
File length	10s
Architecture (import-linter)	22s
Commit-type sync	9s
Branch-protection contexts sync	4s
Frontend Quality	11s
Frontend Build	11s
	1m 48s

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