fix: enforce absolute pdf font path

svc/routes/pdf_assets.go

@@ -2,6 +2,7 @@ package routes
 
 import (
 	"fmt"
+	"log"
 	"os"
 	"path/filepath"
 	"strings"
@@ -17,16 +18,15 @@ func resolvePdfAssetPath(name string) (string, error) {
 		return "", fmt.Errorf("env PDF_FONT_DIR not set")
 	}
 
-	// Absolute yap
-	base, err := filepath.Abs(base)
-	if err != nil {
-		return "", err
+	// Mutlaka absolute olsun
+	if !filepath.IsAbs(base) {
+		return "", fmt.Errorf("PDF_FONT_DIR must be absolute: %s", base)
 	}
 
-	full := filepath.Join(base, name)
+	full := filepath.Clean(filepath.Join(base, name))
 
-	// Debug log
-	fmt.Println("PDF FONT PATH:", full)
+	// DEBUG
+	log.Printf("📄 PDF FONT PATH = %s", full)
 
 	if _, err := os.Stat(full); err != nil {
 		return "", fmt.Errorf("font not found: %s (%v)", full, err)