Avoid shell interpolation when passing LoRA adapter paths

Signed-off-by: Rishi Jat <rishijat098@gmail.com>

Author: rishi-jat

pkg/lib/harness/llm-harness.go

@@ -105,14 +105,20 @@ func (harness *LLMHarness) Start(modelPath string, loraPaths []string) (err erro
 		}
 		cmd = exec.Command("./llamafile.exe", args...)
 	} else {
-		loraArgs := ""
+		args := []string{
+			"--server",
+			"--model", modelPath,
+			"--host", harness.Host,
+			"--port", fmt.Sprintf("%d", harness.Port),
+			"--path", uiHome,
+			"--gpu", "AUTO",
+			"--nobrowser",
+			"--unsecure",
+		}
 		for _, loraPath := range loraPaths {
-			loraArgs += fmt.Sprintf(" --lora %s", loraPath)
+			args = append(args, "--lora", loraPath)
 		}
-		cmd = exec.Command("sh", "-c",
-			fmt.Sprintf("./llamafile --server --model %s --host %s --port %d --path %s --gpu AUTO --nobrowser --unsecure%s",
-				modelPath, harness.Host, harness.Port, uiHome, loraArgs),
-		)
+		cmd = exec.Command("./llamafile", args...)
 	}
 
 	cmd.Dir = harnessPath