refactor(domain): standardize metadata field naming to meta_data across all models

- Rename metadata fields to meta_data for consistency across domain models
- Update agent_identity, agent_performance, agent_portfolio, amm, analytics, bounty, certification, community, cross_chain_bridge, cross_chain_reputation, decentralized_memory, miner, pricing_models, trading, and wallet models
- Rename chain_metadata to chain_meta_data in CrossChainMapping
- Rename verification_metadata to verification_meta_data

dev/tests/comprehensive_baseline.sh

@@ -0,0 +1,56 @@
+#!/bin/bash
+
+echo "🚀 COMPREHENSIVE BASELINE TEST (Pre-Deployment)"
+echo "==============================================="
+
+sites=(
+    "localhost|http://127.0.0.1:8000|http://127.0.0.1:8082"
+    "aitbc (Primary)|http://10.1.223.93:8000|http://10.1.223.93:8082"
+    "aitbc1 (Secondary)|http://10.1.223.40:8000|http://10.1.223.40:8082"
+)
+
+for site in "${sites[@]}"; do
+    IFS='|' read -r name api_url rpc_url <<< "$site"
+    echo ""
+    echo "🔍 Testing Site: $name"
+    echo "-----------------------------------------------"
+    
+    # 1. API Live Health
+    api_live=$(curl -s --connect-timeout 2 "$api_url/health/live" || echo "FAILED")
+    if [[ "$api_live" == *"FAILED"* ]] || [[ -z "$api_live" ]]; then
+        echo "❌ API Live: DOWN"
+    else
+        echo "✅ API Live: UP ($api_live)"
+    fi
+
+    # 2. Blockchain RPC (Testnet Head)
+    rpc_head=$(curl -s --connect-timeout 2 "$rpc_url/rpc/head?chain_id=ait-testnet" || echo "FAILED")
+    if [[ "$rpc_head" == *"FAILED"* ]] || [[ -z "$rpc_head" ]]; then
+        echo "❌ Blockchain RPC: DOWN"
+    else
+        height=$(echo $rpc_head | jq -r '.height // "error"')
+        echo "✅ Blockchain RPC: UP (Height: $height)"
+    fi
+
+    # 3. ZK ML Circuits (Phase 5 check)
+    zk_circuits=$(curl -s --connect-timeout 2 "$api_url/ml-zk/circuits" || echo "FAILED")
+    if [[ "$zk_circuits" == *"FAILED"* ]] || [[ -z "$zk_circuits" ]] || [[ "$zk_circuits" == *"Not Found"* ]]; then
+        echo "⚠️  ZK Circuits: Unavailable or Not Found"
+    else
+        circuit_count=$(echo "$zk_circuits" | jq '.circuits | length' 2>/dev/null || echo "0")
+        echo "✅ ZK Circuits: Available ($circuit_count circuits)"
+    fi
+
+    # 4. Marketplace GPU List
+    gpu_list=$(curl -s --connect-timeout 2 "$api_url/marketplace/offers" || echo "FAILED")
+    if [[ "$gpu_list" == *"FAILED"* ]] || [[ -z "$gpu_list" ]]; then
+        echo "⚠️  Marketplace Offers: Unavailable"
+    else
+        offer_count=$(echo "$gpu_list" | jq 'length' 2>/dev/null || echo "0")
+        echo "✅ Marketplace Offers: Available ($offer_count offers)"
+    fi
+done
+
+echo ""
+echo "==============================================="
+echo "🏁 BASELINE TEST COMPLETE"