feat: add Solana transaction parser component

Add interactive UI for parsing and inspecting Solana transactions:
- Accepts base64-encoded transactions (standard Solana wire format)
- Shows fee payer, blockhash, and signature count
- Detects and displays durable nonce information
- Decodes known instruction types with color-coded display
- Supports URL param sharing for easy transaction sharing

Issue: BTC-2929

Ticket: BTC-2929

Author: lcovar

package-lock.json

@@ -22,6 +22,7 @@
     "deploy": "gh-pages -d dist"
   },
   "dependencies": {
+    "@bitgo/wasm-solana": "*",
     "@bitgo/wasm-utxo": "*",
     "fp-ts": "^2.16.8",
     "io-ts": "^2.2.21",

packages/webui/package.json

@@ -9,6 +9,7 @@ import { initRouter, type Route } from "./lib/router";
 
 // Import demo components (registers them as custom elements)
 import "./wasm-utxo/addresses";
+import "./wasm-solana/transaction";
 
 // Common styles used across components
 export const commonStyles = `
@@ -136,6 +137,20 @@ class HomePage extends BaseComponent {
               ),
             ),
           ),
+          h(
+            "li",
+            {},
+            h(
+              "a",
+              { class: "demo-link", href: "#/wasm-solana/transaction" },
+              h("div", { class: "demo-title" }, "Solana Transaction Parser"),
+              h(
+                "div",
+                { class: "demo-desc" },
+                "Parse and decode Solana transaction instructions from base64",
+              ),
+            ),
+          ),
         ),
       ),
     );
@@ -148,6 +163,7 @@ defineComponent("home-page", HomePage);
 const routes: Route[] = [
   { path: "/", component: "home-page" },
   { path: "/wasm-utxo/addresses", component: "address-converter" },
+  { path: "/wasm-solana/transaction", component: "solana-transaction-parser" },
 ];
 
 // Initialize router when DOM is ready