feat: add Helixa AgentDNA action provider — onchain identity for AI agents

Adds HelixaActionProvider with 8 actions for the Helixa AgentDNA protocol
(ERC-8004 compliant identity NFTs for AI agents on Base):

- register_agent: Mint an onchain identity NFT
- get_agent: Look up agent by token ID
- get_agent_by_address: Look up agent by wallet address
- mutate_agent: Record version changes
- add_trait: Add personality traits and skills
- resolve_name: Resolve .agent names to addresses
- check_name: Check .agent name availability
- get_helixa_stats: Protocol statistics

Contract: 0x665971e7bf8ec90c3066162c5b396604b3cd7711 (Base mainnet)
Website: https://helixa.xyz

Free mint for first 100 agents, tiered pricing after.
Early adopters earn 2x points toward future token allocation.

Author: Ubuntu

typescript/agentkit/src/action-providers/helixa/constants.ts

@@ -0,0 +1,135 @@
+/**
+ * Helixa AgentDNA contract on Base mainnet (Chain ID 8453).
+ * ERC-8004 compliant identity NFT for AI agents.
+ *
+ * IMPORTANT: This contract does NOT implement ERC721Enumerable.
+ * totalSupply() and paused() will REVERT. Use totalAgents() instead.
+ * balanceOf() and ownerOf() work fine (standard ERC721).
+ */
+export const AGENTDNA_CONTRACT = "0x665971e7bf8ec90c3066162c5b396604b3cd7711";
+
+/**
+ * Helixa AgentNames contract on Base mainnet.
+ * .agent naming registry for AI agents.
+ */
+export const AGENTNAMES_CONTRACT = "0xDE8c422D2076CbAE0cA8f5dA9027A03D48928F2d";
+
+/**
+ * Max uint256 — pass as parentTokenId when minting without a parent.
+ */
+export const NO_PARENT =
+  "115792089237316195423570985008687907853269984665640564039457584007913129639935";
+
+export const AGENTDNA_ABI = [
+  {
+    inputs: [],
+    name: "totalAgents",
+    outputs: [{ type: "uint256" }],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [{ name: "tokenId", type: "uint256" }],
+    name: "getAgent",
+    outputs: [
+      {
+        components: [
+          { name: "agentAddress", type: "address" },
+          { name: "name", type: "string" },
+          { name: "framework", type: "string" },
+          { name: "mintedAt", type: "uint256" },
+          { name: "verified", type: "bool" },
+          { name: "soulbound", type: "bool" },
+          { name: "generation", type: "uint256" },
+          { name: "parentDNA", type: "uint256" },
+          { name: "currentVersion", type: "string" },
+          { name: "mutationCount", type: "uint256" },
+        ],
+        type: "tuple",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [{ name: "agentAddress", type: "address" }],
+    name: "addressToTokenId",
+    outputs: [{ type: "uint256" }],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [{ name: "tokenId", type: "uint256" }],
+    name: "getPoints",
+    outputs: [{ type: "uint256" }],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "mintPrice",
+    outputs: [{ type: "uint256" }],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      { name: "agentAddress", type: "address" },
+      { name: "name", type: "string" },
+      { name: "framework", type: "string" },
+      { name: "tokenURI_", type: "string" },
+      { name: "soulbound", type: "bool" },
+      { name: "parentTokenId", type: "uint256" },
+    ],
+    name: "mint",
+    outputs: [{ type: "uint256" }],
+    stateMutability: "payable",
+    type: "function",
+  },
+  {
+    inputs: [
+      { name: "tokenId", type: "uint256" },
+      { name: "newVersion", type: "string" },
+      { name: "reason", type: "string" },
+    ],
+    name: "mutate",
+    outputs: [],
+    stateMutability: "payable",
+    type: "function",
+  },
+  {
+    inputs: [
+      { name: "tokenId", type: "uint256" },
+      { name: "traitType", type: "string" },
+      { name: "traitValue", type: "string" },
+    ],
+    name: "addTrait",
+    outputs: [],
+    stateMutability: "payable",
+    type: "function",
+  },
+] as const;
+
+export const AGENTNAMES_ABI = [
+  {
+    inputs: [{ name: "name", type: "string" }],
+    name: "resolve",
+    outputs: [{ type: "address" }],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [{ name: "name", type: "string" }],
+    name: "available",
+    outputs: [{ type: "bool" }],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [{ name: "name", type: "string" }],
+    name: "register",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+] as const;