chore: remove obsolete zone genesis setup - #1221

Summary

• remove the unused --admin and --sequencer inputs from generate-zone-genesis
• remove the temporary funded 0xdeadbeef… deployer account and its allocation filter
• remove the obsolete Address::ZERO nonce allocation and regenerate the bundled Zone genesis
• keep L1 Zone Portal admin and sequencer configuration unchanged

Validation

• cargo +nightly fmt --check
• cargo check -p tempo-xtask
• audited every remaining GenerateZoneGenesis field; each is consumed by genesis construction or output
• generated a Zone genesis through the CLI without --admin and verified neither 0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef nor Address::ZERO is allocated
• RUST_LOG=info cargo test -p zone-node --test it l1_e2e::test_deposit_via_real_l1 -- --exact --nocapture — passed; captured output contains no state-root mismatch or state-root fallback warnings

Prompted by: @klkvr