release: v7.5.17 - bizinikiwi signing context

- Fixed SR25519 signing context to use "bizinikiwi" for PezkuwiChain
- Implemented proper BIP39 entropy-based key derivation
- Added blake2b, twox (xxhash64) hash functions
- Published from build/ directories for correct npm package structure

test-build.mjs

@@ -0,0 +1,62 @@
+// Test the built package
+import { createRequire } from 'module';
+const require = createRequire(import.meta.url);
+
+// Load the built bundle
+const bundle = await import('./packages/wasm-crypto/build/bundle.js');
+
+console.log('=== Testing Built Bundle ===');
+console.log('Available exports:', Object.keys(bundle));
+
+// Wait for WASM to initialize
+console.log('\nInitializing WASM...');
+const ready = await bundle.waitReady();
+console.log('WASM ready:', ready);
+
+if (ready) {
+  // Test signing context
+  console.log('\n--- Testing getSigningContext ---');
+  const context = bundle.getSigningContext();
+  console.log('Signing context:', context);
+
+  if (context === 'bizinikiwi') {
+    console.log('BIZINIKIWI CONFIRMED!');
+  } else {
+    console.log('WARNING: Expected "bizinikiwi" but got:', context);
+  }
+
+  // Test sr25519KeypairFromSeed
+  console.log('\n--- Testing sr25519KeypairFromSeed ---');
+  const seed = new Uint8Array([
+    0x9d, 0x61, 0xb1, 0x9d, 0xef, 0xfd, 0x5a, 0x60,
+    0xba, 0x84, 0x4a, 0xf4, 0x92, 0xec, 0x2c, 0xc4,
+    0x44, 0x49, 0xc5, 0x69, 0x7b, 0x32, 0x69, 0x19,
+    0x70, 0x3b, 0xac, 0x03, 0x1c, 0xae, 0x7f, 0x60
+  ]);
+
+  const keypair = bundle.sr25519KeypairFromSeed(seed);
+  const secretKey = keypair.slice(0, 64);
+  const publicKey = keypair.slice(64, 96);
+
+  console.log('Keypair length:', keypair.length);
+  console.log('Public key:', Buffer.from(publicKey).toString('hex'));
+
+  // Test sr25519Sign
+  console.log('\n--- Testing sr25519Sign ---');
+  const message = new TextEncoder().encode('test message');
+  const signature = bundle.sr25519Sign(publicKey, secretKey, message);
+  console.log('Signature:', Buffer.from(signature).toString('hex').slice(0, 64) + '...');
+
+  // Test sr25519Verify
+  console.log('\n--- Testing sr25519Verify ---');
+  const verified = bundle.sr25519Verify(signature, message, publicKey);
+  console.log('Verification:', verified ? 'SUCCESS' : 'FAILED');
+
+  if (verified) {
+    console.log('\n=======================================');
+    console.log('BIZINIKIWI WASM PACKAGE WORKING!');
+    console.log('=======================================');
+  }
+} else {
+  console.log('FAILED to initialize WASM');
+}