feat(cctx): accept both inbound and cctx hash

[fadeev]

• Shows how many CCTXs are pending in front of the one you're tracking
• Replaced BlockPI with ZetaChain's own WSS, because the former one was closing connection after 1 block (decided not to make a reconnecting socket for now)
• Added --json for non-interactive use
• Checks a tx on the destination chain. Currently not used in the UI, but this is good to have for integration testing: broadcast a tx, then run npx hardhat cctx --json and read the output to check that the CCTX has been successfully processed on the destination chain.

npx hardhat cctx 0xe6cac4dc7b978806bdd37262f3253289fb8a160a855275faf28a5196aa5ba4a9

✓ CCTXs on ZetaChain found.

✓ 0x0967302e138ad26abf9a4f40c2bd6c234324f650db2b4b50f39332d230c64fb4: 80001 → 7001: OutboundMined (Remote omnichain contract call completed)
✓ 0x0b9f9e90dc6eaddc4129a35efa9a34bdc08b3dfd4e778a8385aa9b33d44a74e6: 7001 → 5: OutboundMined 
✓ 0x63d075e03928ff060a2fe9eae3efada4a8c3c4321f64e079de28fabb98d74c03: 7001 → 97: OutboundMined 

npx hardhat cctx 0x0967302e138ad26abf9a4f40c2bd6c234324f650db2b4b50f39332d230c64fb4

✓ CCTXs on ZetaChain found.

✓ 0x0967302e138ad26abf9a4f40c2bd6c234324f650db2b4b50f39332d230c64fb4: 80001 → 7001: OutboundMined (Remote omnichain contract call completed)
✓ 0x0b9f9e90dc6eaddc4129a35efa9a34bdc08b3dfd4e778a8385aa9b33d44a74e6: 7001 → 5: OutboundMined 
✓ 0x63d075e03928ff060a2fe9eae3efada4a8c3c4321f64e079de28fabb98d74c03: 7001 → 97: OutboundMined 

npx hardhat cctx 0x15ffebf79fa050c2bc1a1eb5abaaf88c9332f327c5b3e0c564fe0c90eba74cf3

✓ CCTXs on ZetaChain found.

✓ 0xb3c209fbe8eb556914bd2151d0a3c4b10325c36389dc4ee57d10153e6f50cc2b: 7001 → 5: OutboundMined 
✓ 0x15ffebf79fa050c2bc1a1eb5abaaf88c9332f327c5b3e0c564fe0c90eba74cf3: 80001 → 7001: OutboundMined (Remote omnichain contract call completed)