fix: populate Query field in AnalysisReport to fix test failures

Fixed TestSQLAnalyzer_MixedStatements by implementing buildQueryInfo()
method that populates the Query field with:
- StatementCount: number of SQL statements in AST
- StatementTypes: types of statements (SELECT, INSERT, UPDATE, etc.)

This was a pre-existing bug where the Query field was never populated
in the AnalysisReport, causing StatementCount to always be 0.

Fixes all build failures across Go 1.19, 1.20, and 1.21.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: 2 people

cmd/gosqlx/cmd/sql_analyzer.go

@@ -64,9 +64,13 @@ func (a *SQLAnalyzer) Analyze(astObj *ast.AST) (*AnalysisReport, error) {
 	securityScore := a.calculateSecurityScore()
 	overallScore := a.calculateOverallScore()
 
+	// Build query metadata
+	queryInfo := a.buildQueryInfo(astObj)
+
 	return &AnalysisReport{
 		Timestamp:         time.Now(),
 		Version:           "2.0.0-unified",
+		Query:             queryInfo,
 		Issues:            a.Issues,
 		ComplexityMetrics: a.ComplexityMetrics,
 		SecurityScore:     securityScore,
@@ -471,6 +475,37 @@ func (a *SQLAnalyzer) generateRecommendations() []string {
 	return recommendations
 }
 
+// buildQueryInfo constructs query metadata from the AST
+func (a *SQLAnalyzer) buildQueryInfo(astObj *ast.AST) QueryInfo {
+	stmtTypes := make([]string, 0, len(astObj.Statements))
+
+	for _, stmt := range astObj.Statements {
+		switch stmt.(type) {
+		case *ast.SelectStatement:
+			stmtTypes = append(stmtTypes, "SELECT")
+		case *ast.InsertStatement:
+			stmtTypes = append(stmtTypes, "INSERT")
+		case *ast.UpdateStatement:
+			stmtTypes = append(stmtTypes, "UPDATE")
+		case *ast.DeleteStatement:
+			stmtTypes = append(stmtTypes, "DELETE")
+		case *ast.CreateTableStatement:
+			stmtTypes = append(stmtTypes, "CREATE TABLE")
+		case *ast.CreateIndexStatement:
+			stmtTypes = append(stmtTypes, "CREATE INDEX")
+		case *ast.AlterTableStatement:
+			stmtTypes = append(stmtTypes, "ALTER TABLE")
+		default:
+			stmtTypes = append(stmtTypes, "OTHER")
+		}
+	}
+
+	return QueryInfo{
+		StatementCount: len(astObj.Statements),
+		StatementTypes: stmtTypes,
+	}
+}
+
 // reset resets analyzer state for new analysis
 func (a *SQLAnalyzer) reset() {
 	a.Issues = a.Issues[:0]