fix(httpclient): replace DefaultClient with timed clients and retry

Пакет httpclient: timeout 45s, idle pool, DoWithRetry. Scheduler и nodecli
используют retry; pipeline/asnresolve/jobs — httpclient.New вместо DefaultClient.

Co-authored-by: Cursor <[email protected]>

internal/nodecli/commands.go

@@ -16,6 +16,7 @@ import (
 
 	"evobgp/internal/birdfmt"
 	"evobgp/internal/bundle"
+	"evobgp/internal/httpclient"
 	"evobgp/internal/signing"
 )
 
@@ -55,6 +56,10 @@ func CmdPullBundle(args []string) int {
 	return 0
 }
 
+func nodeHTTPClient() *http.Client {
+	return httpclient.New(60 * time.Second)
+}
+
 func fetchLatestRevision(base, token, speaker string) (string, error) {
 	u := strings.TrimRight(base, "/") + "/v1/speakers/" + speaker + "/revisions/latest"
 	req, err := http.NewRequest(http.MethodGet, u, nil)
@@ -62,7 +67,9 @@ func fetchLatestRevision(base, token, speaker string) (string, error) {
 		return "", err
 	}
 	req.Header.Set("Authorization", "Bearer "+token)
-	resp, err := http.DefaultClient.Do(req)
+	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
+	defer cancel()
+	resp, err := httpclient.DoWithRetry(ctx, nodeHTTPClient(), req, 3)
 	if err != nil {
 		return "", err
 	}
@@ -90,7 +97,9 @@ func fetchBundle(base, token, speaker, revision string) ([]byte, error) {
 		return nil, err
 	}
 	req.Header.Set("Authorization", "Bearer "+token)
-	resp, err := http.DefaultClient.Do(req)
+	ctx, cancel := context.WithTimeout(context.Background(), 120*time.Second)
+	defer cancel()
+	resp, err := httpclient.DoWithRetry(ctx, nodeHTTPClient(), req, 3)
 	if err != nil {
 		return nil, err
 	}