Update wallet libraries to Zakura Common 3.0.0

[p0mvn]

Summary

Update the wallet stack to Zakura Common 3.0.0, including the shared note-encryption fork and the stable transparent key dependencies. Adapt transaction signing and proving-key handling to the new APIs, use the matching tagged receiver PIR libraries, and check fresh facade consumers against the new release family.

Breaking changes

• DB: None.
• API: Public cryptography types now come from Common 3.0.0 and secp256k1 0.33. Historical Orchard circuits remain available for verification but no longer support constructing proofs.
• Other: Rust 1.97 is now required. The selectable upstream backend moves to its matching prerelease family so it can resolve alongside stable bip32 0.6.

Validation

Local checks pass for receiver recovery, one-time incoming-key scenarios, the dependency graph, the transparent wallet build, and the upgraded PIR services, including authenticated note recovery over HTTP. The final receiver release passes the sweep integration checks. Full CI validation is pending on the updated head.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	zakura-pasta-curves@​2.0.0 ⏵ 3.0.0	+11
	zakura-orchard@​2.0.0 ⏵ 3.0.0
	zakura-bellman@​2.0.0 ⏵ 3.0.0
	pasta_curves@​0.5.2 ⏵ 0.6.1	-18
	zcash_script@​0.4.5 ⏵ 0.6.0
	zakura-bls12-381@​2.0.0 ⏵ 3.0.0
	zakura-equihash@​3.0.0
	zakura-note-encryption@​3.0.0
	incrementalmerkletree@​0.9.0
	secp256k1@​0.33.1
	shardtree@​0.8.0
	zcash_encoding@​0.5.0
	zip32@​0.3.0
	bip32@​0.6.0-pre.1 ⏵ 0.6.0
	bls12_381@​0.8.0 ⏵ 0.9.0
	jubjub@​0.10.0 ⏵ 0.11.1
	redjubjub@​0.8.0 ⏵ 0.9.0
	ripemd@​0.2.0-pre.4 ⏵ 0.2.0
	sha2@​0.11.0-pre.4 ⏵ 0.11.1
	zakura-address@​2.0.0 ⏵ 3.0.0
	zakura-halo2-gadgets@​2.0.0 ⏵ 3.0.0
	zakura-halo2-legacy-pdqsort@​2.0.0 ⏵ 3.0.0
	zakura-halo2-poseidon@​2.0.0 ⏵ 3.0.0
	zakura-halo2-proofs@​2.0.0 ⏵ 3.0.0
	zakura-jubjub@​2.0.0 ⏵ 3.0.0
	zakura-keys@​2.0.0 ⏵ 3.0.0
	zakura-pairing@​2.0.0 ⏵ 3.0.0
	zakura-primitives@​2.0.0 ⏵ 3.0.0
	zakura-proofs@​2.0.0 ⏵ 3.0.0
	zakura-protocol@​2.0.0 ⏵ 3.0.0
	zakura-reddsa@​2.0.0 ⏵ 3.0.0
	zakura-redjubjub@​2.0.0 ⏵ 3.0.0
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