Overview

Bump ledger dependencies:

• Ledger 7: from 7.0.2 (crates.io) to 7.0.3-rc.1 (git tag)
• Ledger 8: from 8.0.0-rc.4 to 8.0.0-rc.5 (git tags)
• Hard-fork test: from hard-fork-test-ledger-8.0.0-rc.4 to hard-fork-test-ledger-8.0.0-rc.5

Fixes diamond dependency on shared crates (base-crypto, coin-structure, midnight-serialize, transient-crypto, zkir) by giving each ledger version its own dependency tree. Concretizes fork module generics (D: DB) with concrete Db7/Db8 type aliases. (We could not unify the Db trait that we were using before)

🗹 TODO before merging

• Ready

📌 Submission Checklist

• Changes are backward-compatible (or flagged if breaking)
• Pull request description explains why the change is needed
• Self-reviewed the diff
• I have included a change file, or skipped for this reason:
• If the changes introduce a new feature, I have bumped the node minor version
• Update documentation (if relevant)
• Updated AGENTS.md if build commands, architecture, or workflows changed
• No new todos introduced

🧪 Testing Evidence

• cargo clippy --workspace — clean (0 errors, 0 warnings)

• cargo test --workspace --lib — all passing (excluding pre-existing env-specific failures)

• Additional tests are provided (if possible)

🔱 Fork Strategy

• Node Runtime Update
• Node Client Update
• Other:
• N/A

Links

• JIRA: https://shielded.atlassian.net/browse/PM-22040