feat(hermes): align provider schema with Hermes Agent 0.10.0

Hermes 0.10.0 tightened custom_providers validation (commit 2cdae233):
invalid base_urls are rejected, unknown fields produce warnings, and
new fields (rate_limit_delay, bedrock_converse, key_env) landed.

- Add bedrock_converse to the api_mode selector (and i18n labels)
- Expose rate_limit_delay in a provider-level advanced panel
- Validate base_url client-side (URL shape, template-token friendly)
- Drop per-model max_tokens — not in _VALID_CUSTOM_PROVIDER_FIELDS
- Round-trip test asserts set_provider preserves rate_limit_delay /
  key_env / any unknown forward-compat field

src/i18n/locales/en.json

@@ -1655,6 +1655,10 @@
       "apiModeChatCompletions": "OpenAI Chat Completions",
       "apiModeAnthropicMessages": "Anthropic Messages",
       "apiModeCodexResponses": "OpenAI Responses",
+      "apiModeBedrockConverse": "AWS Bedrock Converse",
+      "baseUrlRequired": "API endpoint is required",
+      "baseUrlScheme": "Use an http:// or https:// address",
+      "baseUrlInvalid": "API endpoint is not a valid URL",
       "models": "Models",
       "addModel": "Add model",
       "noModels": "No models configured. Switching to this provider won't change the default model.",
@@ -1663,11 +1667,13 @@
       "modelName": "Display name",
       "modelNamePlaceholder": "Claude Opus 4.7",
       "contextLength": "Context length",
-      "maxTokens": "Max output tokens",
       "advancedOptions": "Advanced options",
       "modelsHint": "On switch, the first model is written to top-level model.default.",
       "primaryModel": "Default",
-      "fallbackModel": "Alternate"
+      "fallbackModel": "Alternate",
+      "providerAdvanced": "Provider advanced options",
+      "rateLimitDelay": "Rate limit delay (seconds)",
+      "rateLimitDelayHint": "Minimum delay in seconds between consecutive requests (optional). Leave empty for no limit."
     },
     "webui": {
       "open": "Open Hermes Web UI",

src/i18n/locales/ja.json

@@ -1655,6 +1655,10 @@
       "apiModeChatCompletions": "OpenAI Chat Completions",
       "apiModeAnthropicMessages": "Anthropic Messages",
       "apiModeCodexResponses": "OpenAI Responses",
+      "apiModeBedrockConverse": "AWS Bedrock Converse",
+      "baseUrlRequired": "API エンドポイントは必須です",
+      "baseUrlScheme": "http:// または https:// で始まるアドレスを指定してください",
+      "baseUrlInvalid": "API エンドポイントは有効な URL ではありません",
       "models": "モデル一覧",
       "addModel": "モデルを追加",
       "noModels": "モデル未設定。このプロバイダーに切り替えてもデフォルトモデルは更新されません。",
@@ -1663,11 +1667,13 @@
       "modelName": "表示名",
       "modelNamePlaceholder": "Claude Opus 4.7",
       "contextLength": "コンテキスト長",
-      "maxTokens": "最大出力トークン",
       "advancedOptions": "詳細オプション",
       "modelsHint": "切り替え時、最初のモデルが model.default に書き込まれます。",
       "primaryModel": "デフォルト",
-      "fallbackModel": "予備"
+      "fallbackModel": "予備",
+      "providerAdvanced": "プロバイダー詳細オプション",
+      "rateLimitDelay": "リクエスト間隔（秒）",
+      "rateLimitDelayHint": "連続したリクエスト間の最小待機秒数（任意）。空欄の場合は制限なし。"
     },
     "webui": {
       "open": "Hermes Web UI を開く",

src/i18n/locales/zh.json

@@ -1655,6 +1655,10 @@
       "apiModeChatCompletions": "OpenAI Chat Completions",
       "apiModeAnthropicMessages": "Anthropic Messages",
       "apiModeCodexResponses": "OpenAI Responses",
+      "apiModeBedrockConverse": "AWS Bedrock Converse",
+      "baseUrlRequired": "API 端点不能为空",
+      "baseUrlScheme": "请使用 http:// 或 https:// 开头的地址",
+      "baseUrlInvalid": "API 端点不是有效的 URL",
       "models": "模型列表",
       "addModel": "添加模型",
       "noModels": "暂无模型配置。切换到此供应商时将不会更新默认模型。",
@@ -1663,11 +1667,13 @@
       "modelName": "显示名称",
       "modelNamePlaceholder": "Claude Opus 4.7",
       "contextLength": "上下文长度",
-      "maxTokens": "最大输出 Tokens",
       "advancedOptions": "高级选项",
       "modelsHint": "切换到此供应商时，第一个模型会写入顶层 model.default。",
       "primaryModel": "默认模型",
-      "fallbackModel": "备选模型"
+      "fallbackModel": "备选模型",
+      "providerAdvanced": "供应商高级选项",
+      "rateLimitDelay": "请求间隔（秒）",
+      "rateLimitDelayHint": "连续请求间的最小间隔秒数（可选）。留空表示无限制。"
     },
     "webui": {
       "open": "打开 Hermes Web UI",