feat: add Monad Cards protocol entry

[dak-agent]

Adds a mainnet protocol entry for Monad Cards (cards.monad.xyz).

Details

• File: mainnet/monad_cards.jsonc
• Category: NFT::Collections
• Contract: 0x0000CA12D5c07085022eBC74867157449919Fd67
  • Verified on-chain as an ERC-721 named "Monad Cards" (source code verification status: perfect).

Requested by @keone.

[github-actions]

Contract Verification Results

Changed Files

• mainnet/monad_cards.jsonc

Verification Output

Verifying 1 protocol file(s)...

  ✓ Monad Cards (1 addresses)

================================================================================
                         CONTRACT VERIFICATION RESULTS                          
================================================================================

✓ Monad Cards (monad_cards.jsonc)

================================================================================
                                    SUMMARY                                     
================================================================================
  Files Processed:     1
  Addresses Checked:   1
  ✓ Verified:          1
  ✗ Not Verified:      0

  All contracts verified successfully!
================================================================================

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_{Workflow run: Verify PR Contracts}