feat: phase 1 opts + recursion circuit #5459

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2 errors and 7 warnings

Canceling since a higher priority waiting request for 'PR-1638' exists

The operation was canceled.

constant `MAX_SHARD_SIZE` is never used

function `shard_size` is never used

`sp1-stark` (lib) generated 2 warnings

`sp1-stark` (lib test) generated 2 warnings (2 duplicates)

constant `MAX_SHARD_SIZE` is never used

function `shard_size` is never used

`sp1-stark` (lib) generated 2 warnings