feat: Raise Delegation & Commit Fees 10x

[snawaz]

Implements MIMD-0030 fee changes:

• Raise delegation session and commit fees 10x.
  • SESSION_FEE_LAMPORTS: 300_000 -> 3_000_000
  • COMMIT_FEE_LAMPORTS: 100_000 -> 1_000_000
• Add AccountSpace so PDA creation can use either current rent or legacy rent for funding.
  • Use AccountSpace::LegacyRent(usize) from Delegate* instructions only.
  • Use AccountSpace::CurrentRent(usize) from all other places.

Legacy Rent is computed using information provided in SIMD 0194.

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📥 Commits

Reviewing files that changed from the base of the PR and between ba42bb6 and 4ae062a.

📒 Files selected for processing (2)

• dlp-api/src/consts.rs
• src/processor/fast/utils/pda.rs

No actionable comments were generated in the recent review. 🎉

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⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

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📥 Commits

Reviewing files that changed from the base of the PR and between 9b95c46 and ba42bb6.

📒 Files selected for processing (7)

• src/processor/fast/commit_state.rs
• src/processor/fast/delegate.rs
• src/processor/fast/delegate_with_actions.rs
• src/processor/fast/request_undelegation.rs
• src/processor/fast/undelegate.rs
• src/processor/fast/undelegate_confined_account.rs
• src/processor/fast/utils/pda.rs

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📝 Walkthrough

Walkthrough

The change adds current and legacy funding modes to PDA creation. Fast commit, delegation, and undelegation processors now pass explicit account-space values. Legacy rent calculations and delegation account balances receive test coverage. Public commit and delegation-session fees increase tenfold, while the legacy rent percentage remains for compatibility.

Suggested reviewers: gabrielepicco

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch snawaz/mimd-0030

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[snawaz]

Removed because it was unused.