v5.8.17: Add PostgreSQL connection timeouts as hang safeguard

- Set statement_timeout=1hr, lock_timeout=5min, idle_in_transaction=10min
- These server-side timeouts ensure stuck queries abort even if context cancellation fails
- Additional defense-in-depth for TUI cluster restore hang issue
- Add test_cancel.sh for verifying cancellation behavior

internal/engine/native/parallel_restore.go

@@ -108,6 +108,14 @@ func NewParallelRestoreEngineWithContext(ctx context.Context, config *PostgreSQL
 	// Default is 1 minute which causes hangs on Ctrl+C
 	poolConfig.HealthCheckPeriod = 5 * time.Second
 
+	// CRITICAL: Set connection-level timeouts to ensure queries can be cancelled
+	// This prevents infinite hangs on slow/stuck operations
+	poolConfig.ConnConfig.RuntimeParams = map[string]string{
+		"statement_timeout": "3600000",      // 1 hour max per statement (in ms)
+		"lock_timeout":      "300000",       // 5 min max wait for locks (in ms)
+		"idle_in_transaction_session_timeout": "600000", // 10 min idle timeout (in ms)
+	}
+
 	// Use the provided context so pool health checks stop when context is cancelled
 	pool, err := pgxpool.NewWithConfig(ctx, poolConfig)
 	if err != nil {

main.go

@@ -16,7 +16,7 @@ import (
 
 // Build information (set by ldflags)
 var (
-	version   = "5.8.16"
+	version   = "5.8.17"
 	buildTime = "unknown"
 	gitCommit = "unknown"
 )

test_cancel.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+# Test script to verify context cancellation works in TUI restore
+# Run this BEFORE deploying to enterprise machine
+
+set -e
+
+echo "🧪 Testing TUI Cancellation Behavior"
+echo "====================================="
+
+# Create a test SQL file that simulates a large dump
+TEST_SQL="/tmp/test_large_dump.sql"
+echo "Creating test SQL file with 50000 statements..."
+
+cat > "$TEST_SQL" << 'EOF'
+-- Test pg_dumpall format
+SET statement_timeout = 0;
+SET lock_timeout = 0;
+SET idle_in_transaction_session_timeout = 0;
+SET client_encoding = 'UTF8';
+SET standard_conforming_strings = on;
+EOF
+
+# Add 50000 simple statements to simulate a large dump
+for i in $(seq 1 50000); do
+    echo "SELECT $i; -- padding line to simulate large file" >> "$TEST_SQL"
+done
+
+echo "-- End of test dump" >> "$TEST_SQL"
+
+echo "✅ Created $TEST_SQL ($(wc -l < "$TEST_SQL") lines)"
+
+# Test 1: Verify parsing can be cancelled
+echo ""
+echo "Test 1: Parsing Cancellation (5 second timeout)"
+echo "------------------------------------------------"
+timeout 5 ./bin/dbbackup_linux_amd64 restore single "$TEST_SQL" --target testdb_noexist 2>&1 || {
+    if [ $? -eq 124 ]; then
+        echo "⚠️  TIMEOUT - parsing took longer than 5 seconds (potential hang)"
+        echo "   This may indicate the fix is not working"
+    else
+        echo "✅ Command completed or failed normally (no hang)"
+    fi
+}
+
+# Test 2: TUI interrupt test (requires manual verification)
+echo ""
+echo "Test 2: TUI Interrupt Test (MANUAL)"
+echo "------------------------------------"
+echo "Run this command and press Ctrl+C after 2-3 seconds:"
+echo ""
+echo "  ./bin/dbbackup_linux_amd64 restore single $TEST_SQL --target testdb"
+echo ""
+echo "Expected: Should exit cleanly within 1-2 seconds of Ctrl+C"
+echo "Problem:  If it hangs for 30+ seconds, the fix didn't work"
+
+# Cleanup
+echo ""
+echo "Cleanup: rm $TEST_SQL"
+echo ""
+echo "🏁 Test complete!"