feat: add some config to taskrc.yml (#2389)

Co-authored-by: Pete Davison <pd93.uk@outlook.com>

taskrc/ast/taskrc.go

@@ -1,27 +1,48 @@
 package ast
 
 import (
+	"cmp"
 	"maps"
+	"time"
 
 	"github.com/Masterminds/semver/v3"
 )
 
 type TaskRC struct {
 	Version     *semver.Version `yaml:"version"`
+	Verbose     *bool           `yaml:"verbose"`
+	Concurrency *int            `yaml:"concurrency"`
+	Remote      Remote          `yaml:"remote"`
 	Experiments map[string]int  `yaml:"experiments"`
 }
 
+type Remote struct {
+	Insecure    *bool          `yaml:"insecure"`
+	Offline     *bool          `yaml:"offline"`
+	Timeout     *time.Duration `yaml:"timeout"`
+	CacheExpiry *time.Duration `yaml:"cache-expiry"`
+}
+
 // Merge combines the current TaskRC with another TaskRC, prioritizing non-nil fields from the other TaskRC.
 func (t *TaskRC) Merge(other *TaskRC) {
 	if other == nil {
 		return
 	}
-	if t.Version == nil && other.Version != nil {
-		t.Version = other.Version
-	}
+
+	t.Version = cmp.Or(other.Version, t.Version)
+
 	if t.Experiments == nil && other.Experiments != nil {
 		t.Experiments = other.Experiments
 	} else if t.Experiments != nil && other.Experiments != nil {
 		maps.Copy(t.Experiments, other.Experiments)
 	}
+
+	// Merge Remote fields
+	t.Remote.Insecure = cmp.Or(other.Remote.Insecure, t.Remote.Insecure)
+	t.Remote.Offline = cmp.Or(other.Remote.Offline, t.Remote.Offline)
+	t.Remote.Timeout = cmp.Or(other.Remote.Timeout, t.Remote.Timeout)
+	t.Remote.CacheExpiry = cmp.Or(other.Remote.CacheExpiry, t.Remote.CacheExpiry)
+
+	t.Verbose = cmp.Or(other.Verbose, t.Verbose)
+	t.Concurrency = cmp.Or(other.Concurrency, t.Concurrency)
 }