refactor(rust_crypto): lift RSA backend to rsa 0.10.0-rc.17#1

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EffortlessSteven wants to merge 3 commits intomasterfrom

codex/rust-crypto-rsa-010

Commits on Apr 15, 2026

refactor(rust_crypto): move RSA signing onto low-level key operations
EffortlessSteven
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chore(rust_crypto): lift RSA backend to rsa 0.10.0-rc.17
EffortlessSteven
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fix(rust_crypto): preserve RSA component extraction behavior
EffortlessSteven
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