feat: implement simple AITBC wallet CLI tool

- Add simple_wallet.py with create, send, list commands
- Compatible with existing keystore structure (/var/lib/aitbc/keystore)
- Uses requests library (available in central venv)
- Supports password file authentication
- Provides JSON and table output formats
- Replaces complex CLI fallbacks with working implementation
- Update workflow to use simple wallet CLI
- Cross-node deployment to both aitbc1 and aitbc

This provides a fully functional CLI tool for wallet operations
as requested, eliminating the need for Python script fallbacks.

.windsurf/workflows/multi-node-blockchain-setup.md

@@ -259,25 +259,15 @@ fi
 ### 5. Create Wallet on aitbc
 
 ```bash
-# On aitbc, create a new wallet using AITBC CLI tool
-# Note: CLI tool may not be fully implemented - fallback to Python script if needed
-if ssh aitbc "source /opt/aitbc/venv/bin/activate && aitbc wallet create --name aitbc-user --password-file /var/lib/aitbc/keystore/.password" 2>/dev/null; then
-  echo "Wallet created using CLI tool"
-else
-  echo "CLI not fully implemented, using Python script fallback..."
-  ssh aitbc 'cd /opt/aitbc/apps/blockchain-node && /opt/aitbc/venv/bin/python scripts/keystore.py --name aitbc-user --create --password $(cat /var/lib/aitbc/keystore/.password)'
-fi
+# On aitbc, create a new wallet using AITBC simple wallet CLI
+ssh aitbc 'python /opt/aitbc/cli/simple_wallet.py create --name aitbc-user --password-file /var/lib/aitbc/keystore/.password'
 
 # Note the new wallet address
 WALLET_ADDR=$(ssh aitbc 'cat /var/lib/aitbc/keystore/aitbc-user.json | jq -r .address')
 echo "New wallet: $WALLET_ADDR"
 
 # Verify wallet was created successfully
-if ssh aitbc "source /opt/aitbc/venv/bin/activate && aitbc wallet list --format json" 2>/dev/null; then
-  ssh aitbc "source /opt/aitbc/venv/bin/activate && aitbc wallet list --format json | jq '.[] | select(.name == \"aitbc-user\")'"
-else
-  echo "Wallet created (CLI list not available)"
-fi
+ssh aitbc "python /opt/aitbc/cli/simple_wallet.py list --format json | jq '.[] | select(.name == \"aitbc-user\")'"
 ```
 
 **🔑 Wallet Attachment & Coin Access:**
@@ -297,57 +287,17 @@ The newly created wallet on aitbc will:
 ### 6. Send 1000 AIT from Genesis to aitbc Wallet
 
 ```bash
-# On aitbc1, send 1000 AIT using AITBC CLI tool
-# Note: CLI tool may not be fully implemented - fallback to manual method if needed
-source /opt/aitbc/venv/bin/activate
-
-if aitbc wallet send --from aitbc1genesis --to $WALLET_ADDR --amount 1000 --password-file /var/lib/aitbc/keystore/.password --fee 10 2>/dev/null; then
-  echo "Transaction sent using CLI tool"
-  # Get transaction hash for verification
-  TX_HASH=$(aitbc wallet transactions --from aitbc1genesis --limit 1 --format json 2>/dev/null | jq -r '.[0].hash' || echo "Transaction hash retrieval failed")
-else
-  echo "CLI not fully implemented, using manual transaction method..."
-  # Manual transaction method (fallback)
-  GENESIS_KEY=$(/opt/aitbc/venv/bin/python -c "
-import json, sys
-from cryptography.hazmat.primitives.asymmetric import ed25519
-from cryptography.hazmat.primitives.ciphers.aead import AESGCM
-from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
-from cryptography.hazmat.primitives import hashes
-
-with open('/var/lib/aitbc/keystore/aitbc1genesis.json') as f:
-    ks = json.load(f)
-
-# Decrypt private key
-crypto = ks['crypto']
-salt = bytes.fromhex(crypto['kdfparams']['salt'])
-kdf = PBKDF2HMAC(hashes.SHA256(), 32, salt, crypto['kdfparams']['c'])
-key = kdf.derive('aitbc123'.encode())
-aesgcm = AESGCM(key)
-nonce = bytes.fromhex(crypto['cipherparams']['nonce'])
-priv = aesgcm.decrypt(nonce, bytes.fromhex(crypto['ciphertext']), None)
-print(priv.hex())
-")
-
-  # Create and submit transaction
-  TX_JSON=$(cat << EOF
-{
-  "sender": "$(cat /var/lib/aitbc/keystore/aitbc1genesis.json | jq -r .address)",
-  "recipient": "$WALLET_ADDR",
-  "value": 1000,
-  "fee": 10,
-  "nonce": 0,
-  "type": "transfer",
-  "payload": {}
-}
-EOF
-)
-
-  curl -X POST http://localhost:8006/sendTx \
-    -H "Content-Type: application/json" \
-    -d "$TX_JSON"
-fi
+# On aitbc1, send 1000 AIT using AITBC simple wallet CLI
+python /opt/aitbc/cli/simple_wallet.py send \
+  --from aitbc1genesis \
+  --to $WALLET_ADDR \
+  --amount 1000 \
+  --fee 10 \
+  --password-file /var/lib/aitbc/keystore/.password \
+  --rpc-url http://localhost:8006
 
+# Get transaction hash for verification (simplified - using RPC to check latest transaction)
+TX_HASH=$(curl -s http://localhost:8006/rpc/transactions --limit 1 | jq -r '.transactions[0].hash' 2>/dev/null || echo "Transaction hash retrieval failed")
 echo "Transaction hash: $TX_HASH"
 
 # Wait for transaction to be mined