feat/wallet core consolidation

package.json

@@ -7,8 +7,8 @@
   "scripts": {
     "preinstall": "node scripts/check-node-version.mjs && npx only-allow pnpm",
     "prepare": "git config core.hooksPath .githooks || true",
-    "build": "pnpm -r --filter @dcprotocol/core run build && pnpm -r run build",
-    "dev:cli": "pnpm -r --filter @dcprotocol/core run build && pnpm --filter @dcprotocol/vault run dev --",
+    "build": "pnpm -r --filter @dcprotocol/wallet-core run build && pnpm -r --filter @dcprotocol/core run build && pnpm -r run build",
+    "dev:cli": "pnpm -r --filter @dcprotocol/wallet-core run build && pnpm -r --filter @dcprotocol/core run build && pnpm --filter @dcprotocol/vault run dev --",
     "test": "pnpm -r run test",
     "clean": "rm -rf packages/*/dist",
     "publish-guard": "node scripts/publish-guard.mjs"

packages/dcp-agent/package.json

@@ -57,6 +57,7 @@
   "dependencies": {
     "@dcprotocol/client": "^3.0.0",
     "@dcprotocol/core": "^3.0.0",
+    "@dcprotocol/wallet-core": "workspace:*",
     "@modelcontextprotocol/sdk": "^1.0.0",
     "@noble/curves": "^1.4.0",
     "@solana/web3.js": "^1.98.0",

packages/dcp-agent/src/connection.ts

@@ -179,6 +179,88 @@ export class AgentConnection {
     };
   }
 
+  /**
+   * Build + sign + submit a transfer. DCP (the vault) builds the transaction
+   * itself from the intent, signs it, and submits it to the network.
+   */
+  async transfer(params: {
+    chain: 'solana';
+    to: string;
+    amount: number;
+    currency?: string;
+    mint?: string;
+    decimals?: number;
+    confirm?: 'submitted' | 'confirmed';
+    description?: string;
+    idempotencyKey?: string;
+  }): Promise<{
+    chain: string;
+    from: string;
+    to: string;
+    amount: number;
+    currency: string;
+    signature: string;
+    status: string;
+    explorer_url: string;
+    remaining_daily?: number;
+  }> {
+    this.ensureConnected();
+    this.updateState();
+    const result = await this.client!.transfer(params);
+    return {
+      chain: result.chain,
+      from: result.from,
+      to: result.to,
+      amount: result.amount,
+      currency: result.currency,
+      signature: result.signature,
+      status: result.status,
+      explorer_url: result.explorerUrl,
+      remaining_daily: result.remainingDaily,
+    };
+  }
+
+  /**
+   * Quote + build + sign + submit a swap via Jupiter.
+   */
+  async swap(params: {
+    chain: 'solana';
+    fromToken: string;
+    toToken: string;
+    amount: number;
+    slippageBps?: number;
+    fromDecimals?: number;
+    toDecimals?: number;
+    confirm?: 'submitted' | 'confirmed';
+    description?: string;
+    idempotencyKey?: string;
+  }): Promise<{
+    chain: string;
+    from_token: string;
+    to_token: string;
+    amount: number;
+    out_amount?: string;
+    signature: string;
+    status: string;
+    explorer_url: string;
+    remaining_daily?: number;
+  }> {
+    this.ensureConnected();
+    this.updateState();
+    const result = await this.client!.swap(params);
+    return {
+      chain: result.chain,
+      from_token: result.fromToken,
+      to_token: result.toToken,
+      amount: result.amount,
+      out_amount: result.outAmount,
+      signature: result.signature,
+      status: result.status,
+      explorer_url: result.explorerUrl,
+      remaining_daily: result.remainingDaily,
+    };
+  }
+
   /**
    * Sign a message
    */