docs: update Reddit auth requirement and fix architecture diagrams across all READMEs

Reddit requires authentication since 2024 (all API requests return 403
without a valid session cookie). Updated all 4 language versions (zh, en,
ja, ko) to reflect this: platform tables, tool choice tables, architecture
diagrams, and FAQ sections.

Also fixed Chinese README architecture diagram: reddit.py backend corrected
from Exa to rdt-cli, wechat.py backend corrected from camoufox+miku to Exa.
Fixed Japanese README reddit.py swap suggestions (removed outdated PRAW/Pushshift).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

README.md

@@ -73,7 +73,7 @@ AI Agent 已经能帮你写代码、改文档、管项目——但你让它去
 | 📦 **GitHub** | 读公开仓库 + 搜索 | 私有仓库、提 Issue/PR、Fork | 告诉 Agent「帮我登录 GitHub」 |
 | 🐦 **Twitter/X** | 读单条推文 | 搜索推文、浏览时间线、发推 | 告诉 Agent「帮我配 Twitter」 |
 | 📺 **B站** | 本地：字幕提取 + 搜索 | 服务器也能用 | 告诉 Agent「帮我配代理」 |
-| 📖 **Reddit** | 搜索 + 读帖子和评论（通过 rdt-cli） | — | 无需配置（pipx install rdt-cli） |
+| 📖 **Reddit** | 搜索 + 读帖子和评论（通过 rdt-cli） | Cookie | 需要登录认证（`rdt login`），详见 [rdt-cli](https://github.com/public-clis/rdt-cli) |
 | 📕 **小红书** | — | 阅读、搜索、发帖、评论、点赞 | 告诉 Agent「帮我配小红书」 |
 | 🎵 **抖音** | — | 视频解析、无水印下载链接获取 | 告诉 Agent「帮我配抖音」 |
 | 💼 **LinkedIn** | Jina Reader 读公开页面 | Profile 详情、公司页面、职位搜索 | 告诉 Agent「帮我配 LinkedIn」 |
@@ -173,11 +173,11 @@ channels/
 ├── youtube.py      → yt-dlp          ← 可以换成 YouTube API、Whisper……
 ├── github.py       → gh CLI          ← 可以换成 REST API、PyGithub……
 ├── bilibili.py     → yt-dlp          ← 可以换成 bilibili-api……
-├── reddit.py       → Exa             ← 搜索+阅读，无需代理
+├── reddit.py       → rdt-cli         ← 搜索+阅读，需 Cookie 认证
 ├── xiaohongshu.py  → mcporter MCP    ← 可以换成其他 XHS 工具……
 ├── douyin.py       → mcporter MCP    ← 可以换成其他抖音工具……
 ├── linkedin.py     → linkedin-mcp    ← 可以换成 LinkedIn API……
-├── wechat.py       → camoufox+miku   ← 搜索+阅读微信公众号文章
+├── wechat.py       → Exa (+ Camoufox) ← 搜索+阅读微信公众号文章
 ├── rss.py          → feedparser      ← 可以换成 atoma……
 ├── exa_search.py   → mcporter MCP    ← 可以换成 Tavily、SerpAPI……
 └── __init__.py     → 渠道注册（doctor 检测用）
@@ -191,7 +191,7 @@ channels/
 |------|------|-----------|
 | 读网页 | [Jina Reader](https://github.com/jina-ai/reader) | 9.8K Star，免费，不需要 API Key |
 | 读推特 | [twitter-cli](https://github.com/public-clis/twitter-cli) | 2.1K Star，Cookie 登录，搜索/读推文/时间线/长文 |
-| Reddit | [rdt-cli](https://github.com/public-clis/rdt-cli) | 304 Star，无需登录，搜索+全文+评论 |
+| Reddit | [rdt-cli](https://github.com/public-clis/rdt-cli) | 304 Star，Cookie 认证，搜索+全文+评论 |
 | 视频字幕 + 搜索 | [yt-dlp](https://github.com/yt-dlp/yt-dlp) | 154K Star，YouTube + B站 + 1800 站通吃 |
 | B站增强 | [bili-cli](https://github.com/public-clis/bilibili-cli) | 590 Star，热门/排行/搜索/动态 |
 | 搜全网 | [Exa](https://exa.ai) via [mcporter](https://github.com/nicobailon/mcporter) | AI 语义搜索，MCP 接入免 Key |
@@ -323,7 +323,7 @@ Agent Reach uses twitter-cli with cookie auth — zero API fees. Install with `p
 <details>
 <summary><strong>Reddit 返回 403 怎么办？</strong></summary>
 
-Agent Reach 使用 [rdt-cli](https://github.com/public-clis/rdt-cli) 访问 Reddit，无需登录、无需代理、无需 API Key。安装：`pipx install rdt-cli`。Agent 可以用 `rdt search "关键词"` 搜索、`rdt read POST_ID` 读帖子全文和评论。
+Agent Reach 使用 [rdt-cli](https://github.com/public-clis/rdt-cli) 访问 Reddit。Reddit 自 2024 年起要求认证，安装后需运行 `rdt login` 登录。安装：`pipx install rdt-cli`，然后 `rdt login`（自动从浏览器提取 Cookie）。之后 Agent 可以用 `rdt search "关键词"` 搜索、`rdt read POST_ID` 读帖子全文和评论。
 </details>
 
 <details>

docs/README_en.md

@@ -76,7 +76,7 @@ Update Agent Reach: https://raw.githubusercontent.com/Panniantong/agent-reach/ma
 | 📺 **YouTube** | Read · **Search** | Zero config | Subtitles + search across 1800+ video sites ([yt-dlp](https://github.com/yt-dlp/yt-dlp) ⭐148K) |
 | 📺 **Bilibili** | Read · **Search** | Zero config / Proxy | Video info + subtitles + search. Local works directly, servers need a proxy ([yt-dlp](https://github.com/yt-dlp/yt-dlp)) |
 | 📡 **RSS** | Read | Zero config | Any RSS/Atom feed ([feedparser](https://github.com/kurtmckee/feedparser) ⭐2.3K) |
-| 📖 **Reddit** | Search · Read | Zero config | Search and read via [rdt-cli](https://github.com/public-clis/rdt-cli) (free, no proxy needed) |
+| 📖 **Reddit** | Search · Read | Cookie | Requires auth since 2024 — `rdt login` after install ([rdt-cli](https://github.com/public-clis/rdt-cli)) |
 
 > **Setup levels:** Zero config = install and go · Auto-configured = handled during install · mcporter = needs MCP service · Cookie = export from browser · Proxy = $1/month
 
@@ -205,7 +205,7 @@ channels/
 ├── youtube.py      → yt-dlp          ← swap to YouTube API, Whisper…
 ├── github.py       → gh CLI          ← swap to REST API, PyGithub…
 ├── bilibili.py     → yt-dlp          ← swap to bilibili-api…
-├── reddit.py       → rdt-cli          ← search + read, no proxy needed
+├── reddit.py       → rdt-cli          ← search + read, cookie auth required
 ├── xiaohongshu.py  → mcporter MCP    ← swap to other XHS tools…
 ├── douyin.py       → mcporter MCP    ← swap to other Douyin tools…
 ├── linkedin.py     → linkedin-mcp    ← swap to LinkedIn API…
@@ -222,7 +222,7 @@ Each channel file only checks whether its upstream tool is installed and working
 |----------|------|-----|
 | Read web pages | [Jina Reader](https://github.com/jina-ai/reader) | 9.8K stars, free, no API key needed |
 | Read tweets | [twitter-cli](https://github.com/public-clis/twitter-cli) | 2.1K stars, cookie auth, search/read/timeline/articles |
-| Reddit | [rdt-cli](https://github.com/public-clis/rdt-cli) | 304 stars, no login needed, search + full posts + comments |
+| Reddit | [rdt-cli](https://github.com/public-clis/rdt-cli) | 304 stars, cookie auth, search + full posts + comments |
 | Video subtitles + search | [yt-dlp](https://github.com/yt-dlp/yt-dlp) | 154K stars, YouTube + Bilibili + 1800 sites |
 | Bilibili enhanced | [bili-cli](https://github.com/public-clis/bilibili-cli) | 590 stars, hot/rank/search/feed |
 | Search the web | [Exa](https://exa.ai) via [mcporter](https://github.com/nicobailon/mcporter) | AI semantic search, MCP integration, no API key |
@@ -268,7 +268,7 @@ Agent Reach uses [twitter-cli](https://github.com/public-clis/twitter-cli) with
 <details>
 <summary><strong>Reddit returns 403 from server / datacenter IP blocked?</strong></summary>
 
-Agent Reach uses [rdt-cli](https://github.com/public-clis/rdt-cli) for Reddit — no login, no proxy, no API key needed. Install with `pipx install rdt-cli`. Your agent can search with `rdt search "query"` and read full posts + comments with `rdt read POST_ID`.
+Agent Reach uses [rdt-cli](https://github.com/public-clis/rdt-cli) for Reddit. Since 2024, Reddit requires authentication for all API requests. Install with `pipx install rdt-cli`, then run `rdt login` (auto-extracts cookies from your browser). Your agent can then search with `rdt search "query"` and read full posts + comments with `rdt read POST_ID`.
 </details>
 
 <details>

docs/README_ja.md

@@ -76,7 +76,7 @@ Update Agent Reach: https://raw.githubusercontent.com/Panniantong/agent-reach/ma
 | 📺 **YouTube** | 閲覧・**検索** | 設定不要 | 字幕 + 1800以上の動画サイトでの検索（[yt-dlp](https://github.com/yt-dlp/yt-dlp) ⭐148K） |
 | 📺 **Bilibili** | 閲覧・**検索** | 設定不要 / プロキシ | 動画情報 + 字幕 + 検索。ローカルはそのまま動作、サーバーはプロキシが必要（[yt-dlp](https://github.com/yt-dlp/yt-dlp)） |
 | 📡 **RSS** | 閲覧 | 設定不要 | 任意のRSS/Atomフィード（[feedparser](https://github.com/kurtmckee/feedparser) ⭐2.3K） |
-| 📖 **Reddit** | 検索・閲覧 | 設定不要 | [rdt-cli](https://github.com/public-clis/rdt-cli)で検索+閲覧（無料、プロキシ不要） |
+| 📖 **Reddit** | 検索・閲覧 | Cookie | 2024年以降認証が必要 — インストール後 `rdt login` を実行（[rdt-cli](https://github.com/public-clis/rdt-cli)） |
 
 > **セットアップレベル：** 設定不要 = インストールしてすぐ使える · 自動設定 = インストール時に処理 · mcporter = MCPサービスが必要 · Cookie = ブラウザからエクスポート · プロキシ = 月額$1
 
@@ -200,7 +200,7 @@ channels/
 ├── youtube.py      → yt-dlp          ← YouTube API、Whisperなどに差し替え可能…
 ├── github.py       → gh CLI          ← REST API、PyGithubなどに差し替え可能…
 ├── bilibili.py     → yt-dlp          ← bilibili-apiなどに差し替え可能…
-├── reddit.py       → rdt-cli          ← PRAW、Pushshiftなどに差し替え可能…
+├── reddit.py       → rdt-cli          ← 検索+閲覧、Cookie認証が必要
 ├── xiaohongshu.py  → xhs-cli          ← 他のXHSツールに差し替え可能…
 ├── douyin.py       → mcporter MCP    ← 他の抖音ツールに差し替え可能…
 ├── linkedin.py     → linkedin-mcp    ← LinkedIn APIに差し替え可能…
@@ -261,7 +261,7 @@ Agent Reach は [twitter-cli](https://github.com/public-clis/twitter-cli) をCoo
 <details>
 <summary><strong>サーバー/データセンターIPからRedditが403を返す？</strong></summary>
 
-Agent Reach は [rdt-cli](https://github.com/public-clis/rdt-cli) でRedditにアクセスします — ログイン不要、プロキシ不要、APIキー不要。`pipx install rdt-cli` でインストール後、`rdt search "query"` で検索、`rdt read POST_ID` で投稿+コメントの閲覧ができます。
+Agent Reach は [rdt-cli](https://github.com/public-clis/rdt-cli) でRedditにアクセスします。2024年以降、RedditはすべてのAPIリクエストに認証を要求しています。`pipx install rdt-cli` でインストール後、`rdt login`（ブラウザからCookieを自動抽出）を実行してください。その後 `rdt search "query"` で検索、`rdt read POST_ID` で投稿+コメントの閲覧ができます。
 </details>
 
 <details>

docs/README_ko.md

@@ -76,7 +76,7 @@ Update Agent Reach: https://raw.githubusercontent.com/Panniantong/agent-reach/ma
 | 📺 **YouTube** | 읽기 · **검색** | 없음 | 자막 + 1800+ 비디오 사이트 검색 ([yt-dlp](https://github.com/yt-dlp/yt-dlp) ⭐148K) |
 | 📺 **Bilibili** | 읽기 · **검색** | 없음 / 프록시 | 비디오 정보 + 자막 + 검색. 로컬은 바로 작동, 서버는 프록시 필요 ([yt-dlp](https://github.com/yt-dlp/yt-dlp)) |
 | 📡 **RSS** | 읽기 | 없음 | 모든 RSS/Atom 피드 ([feedparser](https://github.com/kurtmckee/feedparser) ⭐2.3K) |
-| 📖 **Reddit** | 검색 · 읽기 | 없음 | [rdt-cli](https://github.com/public-clis/rdt-cli)를 통한 검색 및 읽기 (무료, 프록시 없음) |
+| 📖 **Reddit** | 검색 · 읽기 | Cookie | 2024년부터 인증 필요 — 설치 후 `rdt login` 실행 ([rdt-cli](https://github.com/public-clis/rdt-cli)) |
 
 > **설정 단계:** 없음 = 설치 후 바로 사용 · 자동 = 설치 시 처리 · mcporter = MCP 서비스 필요 · Cookie = 브라우저에서 내보내기 · 프록시 = 월 $1
 
@@ -200,7 +200,7 @@ channels/
 ├── youtube.py      → yt-dlp          ← YouTube API, Whisper로 교체...
 ├── github.py       → gh CLI          → REST API, PyGithub로 교체...
 ├── bilibili.py     → yt-dlp          → bilibili-api로 교체...
-├── reddit.py       → rdt-cli          → 검색 + 읽기, 프록시 불필요
+├── reddit.py       → rdt-cli          → 검색 + 읽기, cookie 인증 필요
 ├── xiaohongshu.py  → mcporter MCP    ← 다른 XHS 도구로 교체...
 ├── douyin.py       → mcporter MCP    ← 다른 Douyin 도구로 교체...
 ├── linkedin.py     → linkedin-mcp    ← LinkedIn API로 교체...
@@ -217,7 +217,7 @@ channels/
 |----------|------|-----|
 | 웹 페이지 읽기 | [Jina Reader](https://github.com/jina-ai/reader) | 9.8K stars, 무료, API key 불필요 |
 | 트윗 읽기 | [twitter-cli](https://github.com/public-clis/twitter-cli) | 2.1K stars, cookie 인증, 검색/읽기/타임라인/글 |
-| Reddit | [rdt-cli](https://github.com/public-clis/rdt-cli) | 304 stars, 로그인 불필요, 검색 + 전체 글 + 댓글 |
+| Reddit | [rdt-cli](https://github.com/public-clis/rdt-cli) | 304 stars, cookie 인증, 검색 + 전체 글 + 댓글 |
 | 비디오 자막 + 검색 | [yt-dlp](https://github.com/yt-dlp/yt-dlp) | 154K stars, YouTube + Bilibili + 1800 사이트 |
 | Bilibili 향상 | [bili-cli](https://github.com/public-clis/bilibili-cli) | 590 stars, 인기/순위/검색/피드 |
 | 웹 검색 | [Exa](https://exa.ai) via [mcporter](https://github.com/nicobailon/mcporter) | AI 시맨틱 검색, MCP 통합, API key 불필요 |
@@ -263,7 +263,7 @@ Agent Reach는 cookie 기반 인증을 사용하는 [twitter-cli](https://github
 <details>
 <summary><strong>서버/데이터센터 IP에서 Reddit 403 반환 / 차단됨?</strong></summary>
 
-Agent Reach는 Reddit을 위해 [rdt-cli](https://github.com/public-clis/rdt-cli)를 사용합니다 — 로그인 불필요, 프록시 불필요, API key 불필요. `pipx install rdt-cli`로 설치하세요. 에이전트가 `rdt search "query"`로 검색하고 `rdt read POST_ID`로 전체 글 + 댓글을 읽을 수 있습니다.
+Agent Reach는 Reddit을 위해 [rdt-cli](https://github.com/public-clis/rdt-cli)를 사용합니다. 2024년부터 Reddit은 모든 API 요청에 인증을 요구합니다. `pipx install rdt-cli`로 설치한 후 `rdt login`(브라우저에서 cookie 자동 추출)을 실행하세요. 이후 에이전트가 `rdt search "query"`로 검색하고 `rdt read POST_ID`로 전체 글 + 댓글을 읽을 수 있습니다.
 </details>
 
 <details>