feat: add i18n descriptions to all hands and channels (#22)

Add [i18n.zh], [i18n.zh-TW], [i18n.ja], [i18n.ko], [i18n.de], [i18n.es]
sections with translated descriptions to:
- 15 Hand TOML files (hands/*/HAND.toml)
- 44 Channel TOML files (channels/*.toml)

This enables the website to display localized Hand and Channel descriptions
based on the user's selected language.

hands/devops/HAND.toml

@@ -656,7 +656,7 @@ activation_warning = "DevOps hand runs continuously and monitors infrastructure,
 
 [i18n.zh]
 name = "DevOps Hand"
-description = "自主 DevOps 工程师——CI/CD 管理、基础设施监控、部署自动化和事件响应"
+description = "自主 DevOps 工程师——CI/CD 管理、基础设施监控、部署自动化与事件响应"
 category = "开发"
 
 [i18n.zh.settings.infrastructure]
@@ -695,6 +695,9 @@ description = "部署失败时的默认回滚方式"
 label = "审批模式"
 description = "将部署和基础设施操作加入队列供审核，而非直接执行"
 
+[i18n.zh-TW]
+description = "自主 DevOps 工程師——CI/CD 管理、基礎設施監控、部署自動化與事件回應"
+
 # ─── Japanese (日本語) ────────────────────────────────────────────────────
 
 [i18n.ja]
@@ -742,7 +745,7 @@ description = "デプロイやインフラ操作を直接実行せず、レビ
 
 [i18n.es]
 name = "Hand de DevOps"
-description = "Ingeniero DevOps autónomo — gestión de CI/CD, monitoreo de infraestructura, automatización de despliegues y respuesta a incidentes"
+description = "Ingeniero DevOps autónomo — gestión CI/CD, monitoreo de infraestructura, automatización de despliegue y respuesta a incidentes"
 category = "Desarrollo"
 
 [i18n.es.settings.infrastructure]
@@ -828,7 +831,7 @@ description = "Mettre les actions de déploiement et d'infrastructure en file d'
 
 [i18n.de]
 name = "DevOps-Hand"
-description = "Autonomer DevOps-Ingenieur — CI/CD-Verwaltung, Infrastrukturüberwachung, Deployment-Automatisierung und Incident-Response"
+description = "Autonomer DevOps-Ingenieur — CI/CD-Management, Infrastrukturüberwachung, Deployment-Automatisierung und Incident Response"
 category = "Entwicklung"
 
 [i18n.de.settings.infrastructure]
@@ -871,7 +874,7 @@ description = "Deployment- und Infrastrukturaktionen zur Überprüfung in die Wa
 
 [i18n.ko]
 name = "DevOps Hand"
-description = "자율 DevOps 엔지니어 — CI/CD 관리, 인프라 모니터링, 배포 자동화 및 인시던트 대응"
+description = "자율 DevOps 엔지니어 — CI/CD 관리, 인프라 모니터링, 배포 자동화, 인시던트 대응"
 category = "개발"
 
 [i18n.ko.settings.infrastructure]