feat: add skip() function and fuzzy module exclusion support

- Add skip() function to terminate remaining steps in current module while continuing to next module, with optional message parameter
- Implement isFuzzyModuleExcluded() for substring-based module filtering in ExecuteFlow
- Add fuzzy_exclude_modules CLI flag (-X) to both run and scan commands for flexible module exclusion
- Handle ErrSkipModule sentinel error throughout executor (executeStep, executeStepsDAG, ExecuteModule, ExecuteFlow) with proper status propagation
- Update function registry and Goja runtime to register skip() function
- Add comprehensive unit tests for skip() behavior, SkipModuleError, and fuzzy module matching
- Update snapshot tests to use generic example.com instead of shopee.vn

internal/executor/function_executor.go

@@ -2,6 +2,7 @@ package executor
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"sync"
 	"time"
@@ -68,6 +69,11 @@ func (e *FunctionExecutor) Execute(ctx context.Context, step *core.Step, execCtx
 	result.Duration = result.EndTime.Sub(result.StartTime)
 
 	if err != nil {
+		if errors.Is(err, functions.ErrSkipModule) {
+			result.Status = core.StepStatusSkipped
+			result.Error = err
+			return result, err
+		}
 		result.Status = core.StepStatusFailed
 		result.Error = err
 		return result, err