feat: add LINE channel broker with webhook, image analysis, and group…

.env.example

@@ -1,19 +1,18 @@
-# Channel plugins (bidirectional DM bridge)
+# Channel plugins (bidirectional DM bridge via --channels)
 
 ## ─── Telegram ────────────────────────────────────
 TELEGRAM_BOT_TOKEN=
 
 ## ─── Discord ─────────────────────────────────────
 DISCORD_BOT_TOKEN=
 
-# MCP plugins (outbound tool integrations, not channels)
+# Broker channels (standalone message broker, not --channels)
 
-## ─── Slack (MCP only — OAuth preferred, tokens for direct API) ───
-# SLACK_BOT_TOKEN=
-# SLACK_APP_TOKEN=
+## ─── Slack (broker: polling DMs, invokes claude -p) ───
+## Slack Bot Token (from https://api.slack.com/apps)
+SLACK_BOT_TOKEN=
 
-# Planned
-
-## ─── LINE ────────────────────────────────────────
-# LINE_CHANNEL_ACCESS_TOKEN=
-# LINE_CHANNEL_SECRET=
+## ─── LINE (broker: webhook server, invokes claude -p) ───
+## LINE Developers Console (from https://developers.line.biz/console/)
+LINE_CHANNEL_ACCESS_TOKEN=
+LINE_CHANNEL_SECRET=

CHANGELOG.md

@@ -4,15 +4,71 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/), and this project adheres to [Semantic Versioning](https://semver.org/).
 
+## [0.3.0] - 2026-03-23
+
+### Added
+
+- LINE channel integration via message broker (webhook + `claude -p`)
+  - Webhook server with signature verification
+  - Image download and analysis support
+  - Group chat support with access control
+  - Reply API (free) with Push API fallback
+  - Rate limiting and busy guard
+- LINE documentation (plan, install) in EN and zh-TW
+- Log file persistence for both Slack and LINE brokers
+- Tool access (`--allowedTools`) and system prompt for broker channels
+- GitHub topic: `line-bot`
+
+## [0.2.0] - 2026-03-22
+
+### Added
+
+- Slack channel integration via message broker (polling + `claude -p`)
+  - Polls Slack DMs, pipes to Claude CLI, replies in thread
+  - Image attachment download and analysis
+  - Access control via `access.json` allowlist
+  - Cursor tracking for message deduplication
+- Slack token verification script (`scripts/verify_slack.sh`)
+- Plugin architecture documentation (EN + zh-TW)
+- Pre-push reviewer agent (`.claude/agents/pre-push-reviewer.md`)
+- GitHub community files (CONTRIBUTING, SECURITY, issue/PR templates)
+- README badges (CI, license, issues, stars)
+- Usage examples and screenshots sections
+- Prerequisites doc (shared Bun/Claude Code setup)
+- All `install.zh-tw.md` translations
+
+### Changed
+
+- Rename `*_zh-tw.md` to `*.zh-tw.md` (BCP 47 convention)
+- Move `docs/discord/issue.md` to `docs/issues.md` (cross-channel)
+- Slack status: Planned → Broker (not a channel plugin)
+- `.env.example`: separate channel plugins vs broker channels
+- `start.sh`: support broker channels (Slack, LINE)
+
+### Fixed
+
+- CI markdownlint config (`.markdownlint-cli2.jsonc`)
+- shellcheck SC1090 warning in `verify_slack.sh`
+
+### Documented
+
+- Issue #1: STATE_DIR path mismatch (PR #866 submitted)
+- Issue #2: Token leakage via command arguments
+- Issue #3: Slack plugin is MCP-only, not a channel plugin
+- Issue #4: Claude Code `--channels server:` dev mode never approved
+
 ## [0.1.0] - 2026-03-21
 
 ### Added
 
 - Telegram channel integration via Claude Code Channels plugin
-- Bidirectional messaging (Telegram <-> Claude Code session)
-- Approval workflow pattern (approve/reject via Telegram)
+- Discord channel integration via Claude Code Channels plugin
+- Bidirectional messaging (Telegram/Discord <-> Claude Code session)
+- Approval workflow pattern (approve/reject via messaging)
 - Multi-channel launcher script (`start.sh`)
 - Per-channel documentation structure (`docs/<channel>/`)
 - MIT license
 
+[0.3.0]: https://github.com/osisdie/claude-code-channels/compare/v0.2.0...v0.3.0
+[0.2.0]: https://github.com/osisdie/claude-code-channels/compare/v0.1.0...v0.2.0
 [0.1.0]: https://github.com/osisdie/claude-code-channels/releases/tag/v0.1.0

README.md

@@ -20,7 +20,7 @@ A project-level setup for running [Claude Code](https://docs.anthropic.com/en/do
 | Telegram | Ready   | [docs/telegram/](docs/telegram/) |
 | Discord  | Ready   | [docs/discord/](docs/discord/)   |
 | Slack    | Broker   | [docs/slack/](docs/slack/)      |
-| LINE     | Planned | -                                |
+| LINE     | Broker  | [docs/line/](docs/line/)         |
 
 ## Quick Start
 
@@ -129,10 +129,20 @@ You: approve
 │   │   ├── plan.zh-tw.md     # Planning doc (zh-TW)
 │   │   ├── install.md        # Installation & integration notes
 │   │   └── install.zh-tw.md  # Installation notes (zh-TW)
-│   └── slack/
-│       ├── plan.md           # Integration plan (MCP only, not channel)
+│   ├── slack/
+│   │   ├── plan.md           # Integration plan (MCP only, not channel)
+│   │   ├── install.md        # Installation & integration notes
+│   │   └── install.zh-tw.md  # Installation notes (zh-TW)
+│   └── line/
+│       ├── plan.md           # Integration planning doc
+│       ├── plan.zh-tw.md     # Planning doc (zh-TW)
 │       ├── install.md        # Installation & integration notes
 │       └── install.zh-tw.md  # Installation notes (zh-TW)
+├── external_plugins/
+│   ├── slack-channel/
+│   │   └── broker.ts         # Slack message broker
+│   └── line-channel/
+│       └── broker.ts         # LINE webhook broker
 ├── scripts/
 │   └── verify_slack.sh       # Slack token verification & smoke test
 ├── .github/
@@ -168,6 +178,12 @@ You: approve
 |-----|-------|
 | ![Slack Ask](docs/screenshots/slack/ask.png) | ![Slack Reply](docs/screenshots/slack/reply.png) |
 
+### LINE
+
+| Ask (Flower) | Ask (Weather) |
+|------|------|
+| <img src="docs/screenshots/line/ask_flower.jpg" width="300" alt="LINE Flower"> | <img src="docs/screenshots/line/ask_weather.jpg" width="300" alt="LINE Weather"> |
+
 ### Claude Code Terminal
 
 ![Claude Code Channel Messages](docs/screenshots/claude_code/channel_messages.png)
@@ -182,6 +198,8 @@ You: approve
 - [Discord -- Planning Document](docs/discord/plan.md)
 - [Slack -- Installation & Integration Notes](docs/slack/install.md)
 - [Slack -- Planning Document](docs/slack/plan.md)
+- [LINE -- Installation & Integration Notes](docs/line/install.md)
+- [LINE -- Planning Document](docs/line/plan.md)
 
 ### General
 

README.zh-TW.md

@@ -15,7 +15,7 @@
 | Telegram | 可用   | [docs/telegram/](docs/telegram/) |
 | Discord  | 可用   | [docs/discord/](docs/discord/)   |
 | Slack    | Broker | [docs/slack/](docs/slack/)       |
-| LINE     | 規劃中 | -                                |
+| LINE     | Broker | [docs/line/](docs/line/)         |
 
 ## 快速開始
 
@@ -124,10 +124,20 @@ Bot: "即將執行 `rm -rf dist/` — approve 或 reject？"
 │   │   ├── plan.zh-tw.md     # 整合規劃文件（zh-TW）
 │   │   ├── install.md        # 安裝與整合筆記
 │   │   └── install.zh-tw.md  # 安裝與整合筆記（zh-TW）
-│   └── slack/
-│       ├── plan.md           # 整合規劃（僅 MCP，非 channel）
+│   ├── slack/
+│   │   ├── plan.md           # 整合規劃（僅 MCP，非 channel）
+│   │   ├── install.md        # 安裝與整合筆記
+│   │   └── install.zh-tw.md  # 安裝與整合筆記（zh-TW）
+│   └── line/
+│       ├── plan.md           # 整合規劃文件
+│       ├── plan.zh-tw.md     # 整合規劃文件（zh-TW）
 │       ├── install.md        # 安裝與整合筆記
 │       └── install.zh-tw.md  # 安裝與整合筆記（zh-TW）
+├── external_plugins/
+│   ├── slack-channel/
+│   │   └── broker.ts         # Slack 訊息 broker
+│   └── line-channel/
+│       └── broker.ts         # LINE webhook broker
 ├── scripts/
 │   └── verify_slack.sh       # Slack token 驗證與煙霧測試
 ├── .github/
@@ -157,6 +167,8 @@ Bot: "即將執行 `rm -rf dist/` — approve 或 reject？"
 - [Discord — 規劃文件](docs/discord/plan.zh-tw.md)
 - [Slack — 安裝與整合筆記](docs/slack/install.zh-tw.md)
 - [Slack — 規劃文件](docs/slack/plan.md)
+- [LINE — 安裝與整合筆記](docs/line/install.zh-tw.md)
+- [LINE — 規劃文件](docs/line/plan.zh-tw.md)
 
 ### 一般