feat: i18n 11 languages + website update + fix #139 #140 #141

i18n:
- Add 9 new locale files (ja/ko/de/es/fr/pt/ru/vi/zh-TW)
- Add multilingual README files for all 11 languages
- Add locale helper, index, and modular translation system
- Add translation generation scripts

Website (docs/index.html):
- Replace 公益AI接口 branding with 晴辰云AI接口
- Remove OpenClaw 独立安装包 promotion block
- Update SEO meta tags (description, keywords, OG, Twitter, JSON-LD)
- Add 11-language README links to footer
- Update 元宝派 link to new URL

Bug fixes:
- fix(cron): delivery format mode:'push' → mode:'announce', remove invalid 'to' field (fixes #141)
- fix(cron): allow single-channel users to select delivery channel
- fix(cron): preserve delivery field in job state for editing
- fix(models): add 'ollama' as recognized API type, prevent overwriting native ollama config (fixes #140)
- fix(models): skip /v1 append for ollama native API baseUrl
- fix(assistant): normalize 'google-generative-ai' consistently, add ollama hints
- fix(version): use CLI path classification for source detection on Windows (fixes #139)
- fix(version): default to 'official' instead of 'chinese' when source unknown
- fix(version): reorder npm global package check based on active CLI

scripts/translations/pt/models.json

@@ -0,0 +1,21 @@
+{
+  "title": "Configuração de modelos",
+  "desc": "Gerenciar provedores e modelos de IA",
+  "addProvider": "+ Adicionar provedor",
+  "noProviders": "Sem provedores",
+  "providerName": "Nome do provedor",
+  "baseUrl": "Base URL",
+  "apiKey": "API Key",
+  "models": "Modelos",
+  "addModel": "Adicionar modelo",
+  "saveProvider": "Salvar",
+  "testConnection": "Testar conexão",
+  "testing": "Testando...",
+  "testSuccess": "Conexão bem-sucedida",
+  "testFailed": "Conexão falhou",
+  "fetchModels": "Obter lista de modelos",
+  "primaryModel": "Modelo principal",
+  "enabled": "Ativado",
+  "disabled": "Desativado",
+  "loadFailed": "Falha ao carregar configuração"
+}