Release v4.0.0 — Multilingual pipeline, language-aware search, reports reorganization · hoolulu/deep-research

v4.0.0 — Multilingual pipeline, language-aware search, reports reorganization

🌍 Fully multilingual final report

All summary labels (outline/data/report/chapters/sources/facts/lines/chars/min) now dynamically translate to $LANG — zh→中文, en→English, fr→Français, ja→日本語, ru→Русский, etc.
Chapter list heading also translated. Previously only zh/en were supported; now all 19 languages.

🔍 Language-aware search source filtering

Non-Chinese research ($LANG != "zh") now skips Chinese-only search engines (cn.bing.com, sogou, 360) and all B-class Chinese sources (zhihu, 36kr, CSDN, etc.) to eliminate irrelevant results.
Generic search engines now get locale parameters: Brave &country={COUNTRY}, Mojeek &lang={LANG}.
Regional engines added: Yandex for Russian (ru), Yahoo JP for Japanese (ja).
LANG→COUNTRY mapping table added to SKILL.md for Task 2 variable replacement.

📁 Reports organized by language

Reports now saved to reports/$LANG/ subdirectories (e.g., reports/zh/, reports/en/, reports/fr/).
Existing 38 reports classified and moved into their respective language directories.

🔧 Windows compatibility improvements

Filename sanitization (dr_gen.py): Windows-invalid characters (<>:"/\|?*) replaced with -; trailing dots/spaces trimmed.
Zero-byte file cleanup: Task 4 deletes stale 0-byte stubs before assembly to prevent silent failures.
os.makedirs(dirname(output), exist_ok=True) added as safety net in dr_gen.py.
.gitignore updated: tmp/, language.txt, start_time.txt now ignored.

🔄 Pipeline restructuring

Setup phase extracted: TMPDIR creation, TOOLSDIR/PROMPTSDIR detection, and file reading now happen before Step 0 (language detection). Previously Step 0 referenced {TMPDIR} before it was created, causing language.txt to be written to the wrong location on first run.
Language detection now announces result: 🌐 Language detected: en after completion.
"禁止" rule updated: clarifies handoff file reads (outline.json, manifest.json) are allowed between tasks; only search calls and data processing must stay within sub-agents.

✅ QA improvements

TOC heading whitelist expanded in dr_check.py: now includes all 19 language variants (目次/목차/Índice/Table des matières/Inhaltsverzeichnis/etc.) — previously only had English/Chinese/German.
Final report template requires all labels to be in $LANG (no more Chinese labels appearing in French research output).

SKILL.md — Setup phase, search source filtering table, reports/$LANG/, final report multilingual template, updated variable mappings
prompts/task2_data_collection.md — Search source language filtering, regional engines, LANG/COUNTRY variables
prompts/task4_assembly.md — Output path changed to reports/{LANG}/
tools/dr_gen.py — Filename sanitization, os.makedirs safety net
tools/dr_check.py — TOC heading whitelist expanded to 19 languages
.gitignore — New ignores for tmp/ and temp files
VERSION — 3.0.2 → 4.0.0
reports/ — Existing 38 files reorganized by language subdirectory

🌍 最终汇报完全多语言化

所有摘要标签（大纲/数据/报告/章/来源/事实/行/字/分钟）根据 $LANG 动态翻译——zh→中文、en→English、fr→Français、ja→日本語、ru→Русский……
章节列表标题同步翻译。此前仅支 zh/en 两种，现覆盖全部 19 种语言。

🔍 搜索源按语言过滤

非中文调研（$LANG != "zh"）跳过中文专用搜索引擎（cn.bing.com、搜狗、360）和 B 类中文源（知乎、36氪、CSDN 等），避免噪音结果。
通用搜索引擎加 locale 参数：Brave &country={COUNTRY}、Mojeek &lang={LANG}。
新增区域引擎：俄语用 Yandex，日语用 Yahoo JP。
在 SKILL.md 中添加 LANG→COUNTRY 映射表用于 Task 2 变量替换。

📁 报告按语言分类

🔧 Windows 兼容性改进

🔄 流程重构

分离出 Setup 阶段：TMPDIR 创建、TOOLSDIR/PROMPTSDIR 确定、文件读取，现在都在 Step 0 语言判定之前完成。此前 Step 0 引用 {TMPDIR} 时目录还未创建，导致 language.txt 第一次被写到错误位置。
语言判定后向用户公告结果：🌐 Language detected: en。
更新"禁止"规则：明确 Task 间 handoff 文件读取（outline.json、manifest.json）不受限；只有搜索引擎调用和数据处理必须在子 agent 内完成。

✅ QA 改进

dr_check.py 的 TOC 标题白名单扩展到 19 种语言（目次/목차/Índice/Table des matières/Inhaltsverzeichnis 等），此前只有英文/中文/德语三项。
最终汇报模板强制全部标签按 $LANG 翻译（不再出现法语调研结果显示中文标签的问题）。