feat(ai-providers): add prefix editing for provider configs

src/i18n/locales/en.json

@@ -29,6 +29,7 @@
     "required": "Required",
     "api_key": "Key",
     "base_url": "Address",
+    "prefix": "Prefix",
     "proxy_url": "Proxy",
     "alias": "Alias",
     "failure": "Failure",
@@ -171,6 +172,9 @@
     "excluded_models_placeholder": "Comma or newline separated, e.g. gemini-1.5-pro, gemini-1.5-flash",
     "excluded_models_hint": "Leave empty to allow all models; values are trimmed and deduplicated automatically.",
     "excluded_models_count": "Excluding {{count}} models",
+    "prefix_label": "Prefix (Optional):",
+    "prefix_placeholder": "e.g.: team-a",
+    "prefix_hint": "When set, call models as prefix/<model> to target this entry.",
     "config_toggle_label": "Enabled",
     "config_disabled_badge": "Disabled",
     "codex_title": "Codex API Configuration",

src/i18n/locales/zh-CN.json

@@ -29,6 +29,7 @@
     "required": "必填",
     "api_key": "密钥",
     "base_url": "地址",
+    "prefix": "前缀",
     "proxy_url": "代理",
     "alias": "别名",
     "failure": "失败",
@@ -171,6 +172,9 @@
     "excluded_models_placeholder": "用逗号或换行分隔，例如: gemini-1.5-pro, gemini-1.5-flash",
     "excluded_models_hint": "留空表示不过滤；保存时会自动去重并忽略空白。",
     "excluded_models_count": "排除 {{count}} 个模型",
+    "prefix_label": "前缀 (可选):",
+    "prefix_placeholder": "例如: team-a",
+    "prefix_hint": "设置后可用 prefix/<model> 选择该条目。",
     "config_toggle_label": "启用",
     "config_disabled_badge": "已停用",
     "codex_title": "Codex API 配置",