Fix minor issues and add wallet funding documentation

Changes:
- Fix certificate viewing display issue in master_training_launcher.sh
  - Use array to store certificate files for reliable iteration
  - Add error handling for read command
  - Ensure CERT_DIR exists before checking for certificates
  - Fix certificate selection using array index instead of head/tail

- Add wallet funding script (scripts/training/fund_wallet.sh)
  - Fund wallets from genesis using genesis password
  - Reads password from /var/lib/aitbc/keystore/.genesis_password
  - Verifies genesis balance before funding
  - Shows transaction hash and wallet balance after funding

- Add wallet funding documentation (docs/agent-training/WALLET_FUNDING.md)
  - Genesis wallet details and password location
  - Quick funding script usage
  - Manual funding with AITBC CLI
  - Faucet service information
  - Common training wallets
  - Troubleshooting guide
  - Security notes

docs/agent-training/WALLET_FUNDING.md

@@ -0,0 +1,153 @@
+# Wallet Funding Guide
+
+This guide explains how to fund wallets for AITBC training and testing.
+
+## Genesis Wallet
+
+The genesis wallet is pre-funded with 997,999,290 AIT and serves as the primary funding source for training wallets.
+
+**Genesis Wallet Details:**
+- Name: `genesis`
+- Address: `ait175406af70445617b0cd7eb8ff384d81b15c26b45`
+- Balance: 997,999,290 AIT
+- Password file: `/var/lib/aitbc/keystore/.genesis_password`
+
+## Quick Funding Script
+
+Use the provided script to fund wallets from genesis:
+
+```bash
+./scripts/training/fund_wallet.sh <wallet_name> [amount]
+```
+
+**Examples:**
+```bash
+# Fund hermes-trainee with default amount (1000 AIT)
+./scripts/training/fund_wallet.sh hermes-trainee
+
+# Fund a specific wallet with custom amount
+./scripts/training/fund_wallet.sh training-wallet 5000
+```
+
+## Manual Funding
+
+To manually fund a wallet using the AITBC CLI:
+
+```bash
+# Read genesis password
+GENESIS_PASSWORD=$(cat /var/lib/aitbc/keystore/.genesis_password)
+
+# Send funds from genesis to target wallet
+./aitbc-cli wallet send genesis <target_wallet> <amount> "$GENESIS_PASSWORD"
+```
+
+**Example:**
+```bash
+./aitbc-cli wallet send genesis hermes-trainee 100 "EzE4d8cLJo20E9FlquSXq7hqy-e6p4M7Q1ZkM5eLpmY"
+```
+
+## Checking Wallet Balances
+
+```bash
+# Check specific wallet balance
+./aitbc-cli wallet balance <wallet_name>
+
+# List all wallets
+./aitbc-cli wallet list
+```
+
+## Faucet Service
+
+The AITBC system includes a faucet service for automated wallet funding.
+
+### Faucet Setup (Deprecated)
+
+The bash-based faucet setup script is deprecated. Use the Python-based setup system instead:
+
+```bash
+python3 -m aitbc.training_setup.cli setup
+```
+
+This will:
+1. Check prerequisites
+2. Setup genesis wallet as funding source
+3. Fund training wallets
+4. Configure messaging authentication
+
+### Faucet API
+
+If the faucet service is running, you can fund wallets via HTTP API:
+
+```bash
+curl -X POST http://localhost:8080/fund \
+  -H "Content-Type: application/json" \
+  -d '{"address": "ait1..."}'
+```
+
+**Default faucet configuration:**
+- Port: 8080
+- Funding amount: 1000 AIT per request
+- Rate limit: 10 requests per hour per IP
+
+## Common Training Wallets
+
+**Default training wallets:**
+- `hermes-trainee` - Primary training wallet
+- `training-wallet` - General training operations
+- `exam-wallet` - Exam and testing
+- `faucet` - Faucet service wallet (if configured)
+
+**Test wallets:**
+- `test-agent` - Agent testing
+- `scenario_user` - Scenario testing
+- `openclaw-trainee` - OpenClaw training
+
+## Troubleshooting
+
+### Genesis Password Not Found
+
+If the genesis password file is missing or empty:
+
+```bash
+# Check if file exists
+ls -la /var/lib/aitbc/keystore/.genesis_password
+
+# If missing, the genesis wallet may need to be reconfigured
+# Contact your system administrator
+```
+
+### Insufficient Genesis Balance
+
+If the genesis wallet has insufficient funds:
+
+```bash
+# Check genesis balance
+./aitbc-cli wallet balance genesis
+
+# If balance is low, you may need to mine new blocks
+# or regenerate the genesis block
+```
+
+### Transaction Failed
+
+If funding transactions fail:
+
+1. Verify the target wallet exists
+2. Check blockchain node status
+3. Ensure services are running:
+   ```bash
+   systemctl status aitbc-blockchain-node.service
+   ```
+
+## Security Notes
+
+- The genesis password is stored in `/var/lib/aitbc/keystore/.genesis_password` with 0600 permissions
+- Never share the genesis password
+- Backup the genesis wallet file and password
+- For production, consider using a separate faucet wallet instead of genesis
+
+## Related Documentation
+
+- [Training Environment Setup](ENVIRONMENT_SETUP.md)
+- [Genesis Generation](/opt/aitbc/docs/infrastructure/genesis_generation.md)
+- [Training Playground](/opt/aitbc/scripts/training/README.md)

scripts/training/fund_wallet.sh

@@ -0,0 +1,104 @@
+#!/bin/bash
+# AITBC Wallet Funding Script
+# Funds a wallet from the genesis wallet using the genesis password
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+AITBC_DIR="$(cd "$SCRIPT_DIR/../.." && pwd)"
+CLI_PATH="$AITBC_DIR/aitbc-cli"
+GENESIS_PASSWORD_FILE="/var/lib/aitbc/keystore/.genesis_password"
+
+# Colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+print_status() {
+    echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+print_success() {
+    echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+print_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+print_warning() {
+    echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+usage() {
+    echo "Usage: $0 <wallet_name> [amount]"
+    echo ""
+    echo "Arguments:"
+    echo "  wallet_name  Name of the wallet to fund"
+    echo "  amount      Amount of AIT to send (default: 1000)"
+    echo ""
+    echo "Example:"
+    echo "  $0 hermes-trainee 1000"
+    echo ""
+    echo "Note: The genesis password is read from $GENESIS_PASSWORD_FILE"
+    exit 1
+}
+
+if [ $# -lt 1 ]; then
+    usage
+fi
+
+WALLET_NAME="$1"
+AMOUNT="${2:-1000}"
+
+print_status "Funding wallet: $WALLET_NAME"
+print_status "Amount: $AMOUNT AIT"
+
+# Check if genesis password file exists
+if [ ! -f "$GENESIS_PASSWORD_FILE" ]; then
+    print_error "Genesis password file not found: $GENESIS_PASSWORD_FILE"
+    print_error "Please ensure the genesis wallet is properly configured"
+    exit 1
+fi
+
+# Read genesis password
+GENESIS_PASSWORD=$(cat "$GENESIS_PASSWORD_FILE")
+if [ -z "$GENESIS_PASSWORD" ]; then
+    print_error "Genesis password file is empty"
+    exit 1
+fi
+
+print_status "Genesis password loaded"
+
+# Check if CLI exists
+if [ ! -f "$CLI_PATH" ]; then
+    print_error "AITBC CLI not found: $CLI_PATH"
+    exit 1
+fi
+
+# Check genesis wallet balance
+print_status "Checking genesis wallet balance..."
+GENESIS_BALANCE=$("$CLI_PATH" wallet balance genesis 2>&1 || echo "0")
+print_status "Genesis wallet balance: $GENESIS_BALANCE"
+
+# Fund the wallet
+print_status "Sending $AMOUNT AIT from genesis to $WALLET_NAME..."
+cd "$AITBC_DIR"
+RESULT=$("$CLI_PATH" wallet send genesis "$WALLET_NAME" "$AMOUNT" "$GENESIS_PASSWORD" 2>&1)
+
+if [ $? -eq 0 ]; then
+    print_success "Transaction sent successfully"
+    echo "Transaction hash: $RESULT"
+    
+    # Verify balance
+    print_status "Verifying wallet balance..."
+    WALLET_BALANCE=$("$CLI_PATH" wallet balance "$WALLET_NAME" 2>&1 || echo "0")
+    print_success "Wallet $WALLET_NAME balance: $WALLET_BALANCE"
+else
+    print_error "Funding failed: $RESULT"
+    exit 1
+fi
+
+print_success "Wallet funding completed"

scripts/training/master_training_launcher.sh

@@ -357,7 +357,18 @@ display_badge() {
 view_certificates() {
     print_header "Stage Completion Certificates"
     
-    if [ ! -d "$CERT_DIR" ] || [ -z "$(ls -A $CERT_DIR)" ]; then
+    # Ensure directory exists
+    mkdir -p "$CERT_DIR"
+    
+    # Check for certificates
+    local cert_files=()
+    for cert_file in "$CERT_DIR"/stage*_certificate.json; do
+        if [ -f "$cert_file" ]; then
+            cert_files+=("$cert_file")
+        fi
+    done
+    
+    if [ ${#cert_files[@]} -eq 0 ]; then
         print_warning "No certificates found yet"
         echo "Complete stages to earn certificates"
         return 0
@@ -367,7 +378,7 @@ view_certificates() {
     echo
     
     local cert_count=0
-    for cert_file in "$CERT_DIR"/stage*_certificate.json; do
+    for cert_file in "${cert_files[@]}"; do
         if [ -f "$cert_file" ]; then
             ((cert_count++))
             local stage_num=$(echo "$cert_file" | grep -o 'stage[0-9]' | grep -o '[0-9]')
@@ -385,10 +396,10 @@ view_certificates() {
     
     echo
     echo -n "View certificate details? [1-$cert_count/N]: "
-    read -r view_choice
+    read -r view_choice || view_choice="N"
     
-    if [[ "$view_choice" =~ ^[0-9]+$ ]] && [ "$view_choice" -le "$cert_count" ]; then
+    if [[ "$view_choice" =~ ^[0-9]+$ ]] && [ "$view_choice" -ge 1 ] && [ "$view_choice" -le "$cert_count" ]; then
-        local cert_file=$(ls "$CERT_DIR"/stage*_certificate.json | head -"$view_choice" | tail -1)
+        local cert_file="${cert_files[$((view_choice-1))]}"
         if [ -f "$cert_file" ]; then
             echo
             echo -e "${BOLD}Certificate Details:${NC}"