ci: enforce strict exit codes in workflow tests

- Remove `|| echo "⚠️ ..."` fallbacks that masked failures
- Add explicit `exit 1` on port readiness failures and missing test directories
- Track port_ready flag in health check loops to fail if services don't start
- Replace warning emoji (⚠️) with error emoji (❌) for actual failures
- Fix docs-validation to use curated Markdown target list excluding high-noise directories
- Update rust-zk-tests paths from gpu_acceleration/research to dev

scripts/workflow/06_final_verification.sh

@@ -4,6 +4,10 @@
 
 set -e  # Exit on any error
 
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
+CLI_PATH="${REPO_ROOT}/aitbc-cli"
+
 echo "=== AITBC Multi-Node Blockchain Final Verification ==="
 
 # Get wallet address (source from wallet creation script)
@@ -34,18 +38,18 @@ echo "Height difference: $HEIGHT_DIFF blocks"
 # Check wallet balance using CLI
 echo "2. Checking aitbc wallet balance..."
 echo "=== aitbc wallet balance (local) ==="
-BALANCE=$(/opt/aitbc/aitbc-cli wallet balance aitbc-user 2>/dev/null | grep "Balance:" | awk '{print $2}' || echo "0")
+BALANCE=$("$CLI_PATH" wallet balance aitbc-user 2>/dev/null | grep "Balance:" | awk '{print $2}' || echo "0")
 echo $BALANCE AIT
 
 # Get blockchain information using CLI
 echo "3. Blockchain information..."
 echo "=== Chain Information ==="
-/opt/aitbc/aitbc-cli blockchain info
+"$CLI_PATH" blockchain info
 
 # Network health check using CLI
 echo "4. Network health check..."
 echo "=== Network Status (local) ==="
-/opt/aitbc/aitbc-cli network status 2>/dev/null || echo "Network status not available"
+"$CLI_PATH" network status 2>/dev/null || echo "Network status not available"
 
 # Service status
 echo "5. Service status..."