refactor(recipe/loader): expand safe shell commands and refine validation logic

- Renamed safeReadOnlyCommands to safeCommands for clarity.
- Added support for additional safe commands including GNU utilities (find, grep, which),
  Git commands (diff, branch), and various test runners (go test, make test/lint, pytest, etc.).
- Updated safety check to allow commands prefixed with any safe command for flexibility.
- Improved error message for unsafe commands.

internal/recipe/loader.go

@@ -12,18 +12,35 @@ import (
 )
 
 // Global safe read-only whitelist
-var safeReadOnlyCommands = map[string]bool{
-	"ls":                            true,
-	"pwd":                           true,
-	"cat":                           true,
-	"tree":                          true,
+var safeCommands = map[string]bool{
+	//GNU Utilities
+	"ls":    true,
+	"pwd":   true,
+	"cat":   true,
+	"tree":  true,
+	"find":  true,
+	"grep":  true,
+	"which": true,
+	//Git and Gitea
 	"git status":                    true,
 	"git log":                       true,
-	"find":                          true,
-	"grep":                          true,
-	"cndump -s":                     true,
+	"git diff":                      true,
+	"git branch":                    true,
 	"tea repos list -o csv -lm 100": true,
 	"tea repos search -o csv":       true,
+	//Miscellaneous Utilities
+	"cndump -s": true,
+	// Safe test runners
+	"go test":           true,
+	"make test":         true,
+	"make lint":         true,
+	"pytest":            true,
+	"poetry run pytest": true,
+	"ctest":             true,
+	"python -m pytest":  true,
+	"go vet":            true,
+	"go fmt":            true,
+	"go mod tidy":       true,
 }
 
 var (
@@ -47,11 +64,21 @@ func Load(path string, userParams map[string]any) (*Recipe, error) {
 		return nil, fmt.Errorf("yaml parse: %w", err)
 	}
 
-	// === SAFETY CHECK: reject dangerous allowed_shell_commands ===
+	// === SAFETY CHECK: reject truly dangerous commands ===
 	for _, cmd := range r.AllowedShellCommands {
 		trimmed := strings.TrimSpace(strings.ToLower(cmd))
-		if !safeReadOnlyCommands[trimmed] && !strings.HasPrefix(trimmed, "git status") && !strings.HasPrefix(trimmed, "git log") {
-			return nil, fmt.Errorf("\u001B[31mRecipe contains unsafe shell command: %q. Remove or replace the dangerous command in your recipe.\u001B[0m", cmd)
+
+		// Allow exact matches or common prefixed commands
+		allowed := false
+		for safe := range safeCommands {
+			if strings.HasPrefix(trimmed, safe) {
+				allowed = true
+				break
+			}
+		}
+		if !allowed {
+			return nil, fmt.Errorf("\u001B[31mRecipe contains unsafe shell command: %q. "+
+				"Remove or replace the dangerous command in your recipe.\u001B[0m", cmd)
 		}
 	}