E2E tests for coldkey swap

[l0r1s]

Summary

Add E2E tests for coldkey swap using polkadot-api (papi).

Changes

Moonwall config (moonwall.config.json)

• Added zombienet_coldkey_swap environment with papi connection
• Added generate-types.sh to runScripts so papi descriptors are generated before test run

Utility files

• utils/coldkey_swap.ts — Helpers for coldkey swap operations: announceColdkeySwap, swapColdkeyAnnounced, disputeColdkeySwap, clearColdkeySwapAnnouncement, sudoResetColdkeySwap, sudoSwapColdkey, and storage query helpers. Uses coldkeyHashBinary() for papi FixedSizeBinary<32> hash params.
• utils/transactions.ts — sendTransaction wrapper that returns success/failure instead of throwing, for negative tests.

Test files

• 00-coldkey-swap.test.ts — User-initiated coldkey swap tests:
  • T01–T08: core coldkey swap (announce, swap, dispute, reannounce, hash mismatch, etc.)
  • T09–T12: clear_coldkey_swap_announcement (happy path, too early, no announcement, after dispute)
  • T13: CheckColdkeySwap dispatch guard — active announcement blocks add_stake and Balances.transfer_keep_alive; swap-related calls (announce_coldkey_swap, dispute_coldkey_swap) still allowed through
  • T14: CheckColdkeySwap dispatch guard — disputed swap blocks ALL calls including add_stake, Balances.transfer_keep_alive, and even swap-related calls (swap_coldkey_announced)
• 01-coldkey-swap-sudo.test.ts — Sudo coldkey swap tests (reset, instant swap, clears pending announcement)