Fixes and improvements

.env.template

@@ -47,14 +47,6 @@ SANDBOX=local              # code execution backend: 'local' (default) or 'docke
 #   └── cache/                   (local cache, only for azure_blob backend)
 # DATA_FORMULATOR_HOME=
 
-# Available UI languages (optional, comma-separated).
-# Default: en,zh — if not set, both English and Chinese are available.
-# Supported values: en, zh  (add more after creating locale files)
-# Examples:
-#   AVAILABLE_LANGUAGES=zh          # only Chinese, language switcher hidden
-#   AVAILABLE_LANGUAGES=en,zh,ja    # three languages
-# AVAILABLE_LANGUAGES=
-
 # -------------------------------------------------------------------
 # LLM provider API keys
 # -------------------------------------------------------------------
@@ -82,6 +74,15 @@ OLLAMA_ENABLED=true
 OLLAMA_API_BASE=http://localhost:11434
 OLLAMA_MODELS=qwen3:32b # models with good code generation capabilities recommended
 
+# OrcaRouter (OpenAI-compatible AI gateway)
+# Provides adaptive routing, automatic failover, zero-markup inference,
+# observability, guardrails, and agent-tool governance behind one endpoint.
+# See: https://www.orcarouter.ai
+ORCAROUTER_ENABLED=true
+ORCAROUTER_API_KEY=#your-orcarouter-api-key
+ORCAROUTER_API_BASE=https://api.orcarouter.ai/v1
+ORCAROUTER_MODELS=auto # comma separated list of models; use e.g. "auto" or "openai/gpt-4.1-mini"
+
 # Add other LiteLLM-supported providers with PROVIDER_API_KEY, PROVIDER_MODELS, etc.
 
 # -------------------------------------------------------------------

.github/dependabot.yml

@@ -39,11 +39,6 @@ updates:
        update-types:
          - minor
          - patch
-   ignore:
-     # LiteLLM 1.92+ no longer provides portable Windows/macOS wheels.
-     - dependency-name: "litellm"
-       versions:
-         - ">=1.92"
 
  # GitHub Actions workflow dependencies
  - package-ecosystem: "github-actions"

.gitignore

@@ -12,6 +12,7 @@ design-docs/
 deploy-scripts/
 test-data-loader/
 scripts/
+docs/esrp/*
 
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.

README.md

@@ -76,7 +76,7 @@ Here are milestones that lead to the current design:
 - **v0.2** ([Demos](https://github.com/microsoft/data-formulator/releases/tag/0.2)): Large data support with DuckDB integration
 - **v0.1.7** ([Demos](https://github.com/microsoft/data-formulator/releases/tag/0.1.7)): Dataset anchoring for cleaner workflows
 - **v0.1.6** ([Demo](https://github.com/microsoft/data-formulator/releases/tag/0.1.6)): Multi-table support with automatic joins
-- **Model Support**: OpenAI, Azure, Ollama, Anthropic via [LiteLLM](https://github.com/BerriAI/litellm) ([feedback](https://github.com/microsoft/data-formulator/issues/49))
+- **Model Support**: OpenAI, Azure, Ollama, Anthropic, [OrcaRouter](https://www.orcarouter.ai) via [LiteLLM](https://github.com/BerriAI/litellm) ([feedback](https://github.com/microsoft/data-formulator/issues/49))
 - **Python Package**: Easy local installation ([try it](#get-started))
 - **Visualization Challenges**: Test your skills ([challenges](https://github.com/microsoft/data-formulator/issues/53))
 - **Data Extraction**: Parse data from images and text ([demo](https://github.com/microsoft/data-formulator/pull/31#issuecomment-2403652717))

docs/dev-guides/6-i18n-language-injection.md

@@ -28,10 +28,10 @@ frontend i18n.language
 | 模块 | 职责 |
 |------|------|
 | `src/app/utils.tsx` | `getAgentLanguage()`、`fetchWithIdentity()`、`translateBackend()` |
-| `src/app/App.tsx` | `LanguageSwitcher`，基于 `AVAILABLE_LANGUAGES` 切换前端语言 |
+| `src/app/App.tsx` | `LanguageSwitcher`，基于已注册的前端 locale 切换语言 |
 | `py-src/data_formulator/routes/agents.py` | `_get_ui_lang()`、`get_language_instruction()` |
 | `py-src/data_formulator/agents/agent_language.py` | `build_language_instruction()`、`inject_language_instruction()` |
-| `src/i18n/locales/{en,zh}/` | 前端翻译资源 |
+| `src/i18n/locales/{en,zh,hi}/` | 前端翻译资源 |
 
 ### 1.1 当前代码对照状态
 
@@ -322,7 +322,7 @@ messages.error.failedToOpenWorkspace
 1. 在 `agents/agent_language.py` 的 `LANGUAGE_DISPLAY_NAMES` 中添加语言代码和显示名。
 2. 如有特殊要求，添加到 `LANGUAGE_EXTRA_RULES`。
 3. 在 `src/i18n/locales/<lang>/` 添加完整翻译资源。
-4. 在服务端配置 `AVAILABLE_LANGUAGES`，让前端语言切换器显示该语言。
+4. 在 `src/i18n/index.ts` 注册 locale，让前端语言切换器显示该语言。
 5. 验证 `fetchWithIdentity()` 请求头、Agent 输出、固定 UI 文案都使用新语言。
 
 每种新语言至少需要与 en/zh 等价的 locale 结构：
@@ -343,7 +343,7 @@ src/i18n/locales/<lang>/
 ```
 
 `agent_language.py` 支持的 20 种 LLM 输出语言不等于前端 UI 已完整翻译 20 种语言。只有
-locale 文件和 `AVAILABLE_LANGUAGES` 都配置完成的语言，才应出现在前端语言切换器中。
+locale 文件完整并在 `src/i18n/index.ts` 注册的语言，才应出现在前端语言切换器中。
 
 ---
 

package.json

@@ -5,12 +5,16 @@
     "private": true,
     "resolutions": {
         "lodash": "^4.18.1",
-        "vite": "^7.3.3",
-        "dompurify": "^3.4.2",
+        "vite": "^7.3.5",
+        "dompurify": "^3.4.13",
+        "postcss": "^8.5.23",
+        "esbuild": "^0.28.1",
+        "tmp": "^0.2.6",
         "markdown-it": "^14.3.0",
         "linkify-it": "^5.0.2",
         "undici": "^7.29.0",
         "exceljs/**/brace-expansion": "^2.1.3",
+        "@humanfs/node": "^0.16.8",
         "immutable": "^5.1.9",
         "uuid": "^11.1.1"
     },
@@ -27,30 +31,30 @@
         "@mui/material": "^7.1.1",
         "@mui/x-tree-view": "^9.0.1",
         "@reduxjs/toolkit": "^2.12.0",
-        "@tiptap/core": "^3.29.2",
-        "@tiptap/extension-image": "^3.29.2",
-        "@tiptap/extension-table": "^3.29.2",
-        "@tiptap/extension-table-cell": "^3.29.2",
-        "@tiptap/extension-table-header": "^3.29.2",
-        "@tiptap/extension-table-row": "^3.29.2",
-        "@tiptap/pm": "^3.29.2",
-        "@tiptap/react": "^3.29.2",
-        "@tiptap/starter-kit": "^3.29.2",
+        "@tiptap/core": "^3.30.4",
+        "@tiptap/extension-image": "^3.30.4",
+        "@tiptap/extension-table": "^3.30.4",
+        "@tiptap/extension-table-cell": "^3.30.4",
+        "@tiptap/extension-table-header": "^3.30.4",
+        "@tiptap/extension-table-row": "^3.30.4",
+        "@tiptap/pm": "^3.30.4",
+        "@tiptap/react": "^3.30.4",
+        "@tiptap/starter-kit": "^3.30.4",
         "@types/dompurify": "^3.0.5",
         "@types/validator": "^13.12.2",
         "@uiw/react-codemirror": "^4.25.11",
         "allotment": "^1.20.4",
         "canvas": "^3.2.1",
         "chart.js": "^4.5.1",
         "d3": "^7.3.0",
-        "dompurify": "^3.4.0",
-        "echarts": "^6.0.0",
+        "dompurify": "^3.4.13",
+        "echarts": "^6.1.0",
         "exceljs": "^4.4.0",
         "flint-chart": ">=0.5.0",
         "html2canvas": "^1.4.1",
         "i18next": "^26.0.1",
         "i18next-browser-languagedetector": "^8.2.1",
-        "js-yaml": "^4.1.1",
+        "js-yaml": "^4.3.1",
         "katex": "^0.16.22",
         "localforage": "^1.10.0",
         "lodash": "^4.18.1",
@@ -70,6 +74,7 @@
         "react-i18next": "^16.5.4",
         "react-katex": "^3.1.0",
         "react-markdown": "^10.1.0",
+        "react-pdf": "^10.5.0",
         "react-redux": "^8.0.4",
         "react-router-dom": "^7.18.2",
         "react-selectable-fast": "^3.4.0",
@@ -130,7 +135,7 @@
         "jsdom": "^29.0.1",
         "sass": "^1.102.0",
         "typescript-eslint": "^8.65.0",
-        "vite": "^7.3.3",
+        "vite": "^7.3.5",
         "vitest": "^4.1.0"
     }
 }