docs(release): sync v1.0.13 notes for chat IM capability expansion (#153)

- CHANGELOG: backfill 1.0.13 entry covering user-identity send, read/
  search paths, topic replies, mentions, focused/unread/top/common
  conversations, org-wide group creation and bot lifecycle commands
  added in #148.
- README Key Services: Chat 10 -> 20, Bot 6 -> 7, total 141 -> 152
  across 14 products; mention `dws im` alias in the Chat row.

CHANGELOG.md

@@ -4,6 +4,45 @@ All notable changes to this project will be documented in this file.
 
 The format is inspired by [Keep a Changelog](https://keepachangelog.com/) and this project follows [Semantic Versioning](https://semver.org/).
 
+## [1.0.13] - 2026-04-22
+
+IM / Messaging capability expansion: the `chat` (aka `im`) product surface grows from "group + bot messaging" into a full conversational layer — user-identity messaging, message reading & search, personal messages, topic replies, mentions, focused contacts, unread/top/common conversations, org-wide group creation, and first-class bot lifecycle.
+
+### Added
+
+- **`dws im` alias** — `dws im` is now registered as an alias of `dws chat` for intent clarity
+- **User-identity messaging** (`chat message send`) — send group or 1-on-1 messages as the current user
+  - Recipient selection is mutually exclusive: `--group <openConversationId>` / `--user <userId>` / `--open-dingtalk-id <openDingTalkId>`
+  - Markdown text via `--text` (or positional arg), optional `--title`
+  - Group-only: `--at-all` to @everyone, `--at-users` for per-member @mentions
+  - Image messages via `--media-id` (obtained from `dt_media_upload`)
+- **Personal messages** (`chat message send-personal`) — sensitive personal-channel send (⚠️ destructive/dangerous op, requires confirmation)
+- **Conversation read paths**:
+  - `chat message list` — pull group / 1-on-1 conversation messages
+  - `chat message list-all` — pull all conversations for the current user in a time range
+  - `chat message list-topic-replies` — pull group topic reply threads
+  - `chat message list-by-sender` — messages by a specific sender
+  - `chat message list-mentions` — messages where the current user was @-mentioned
+  - `chat message list-focused` — messages from focused / starred contacts
+  - `chat message list-unread-conversations` — unread conversation list
+  - `chat message search` — keyword search across conversations
+  - `chat message info` — conversation metadata
+  - `chat list-top-conversations` — pinned conversation list
+- **Group creation & discovery**:
+  - `chat group create-org` — create an organization-wide group
+  - `chat search-common` — search groups shared with a nickname list (`--nicks`, `--match-mode AND|OR`, cursor-based pagination)
+- **Bot lifecycle**:
+  - `chat bot create` — create an enterprise bot
+  - `chat bot search-groups` — search the groups a bot is present in
+
+### Changed
+
+- **`chat` skill reference** (`skills/references/products/chat.md`, #148) restructured into three sub-groups — `group` (9) / `message` (15) / `bot` (3) — with refreshed intent-routing table, workflow examples, and context-passing rules aligned with `dws-service-endpoints.json` (16 new group-chat tool overrides + 2 new bot tool overrides)
+- **README Key Services** sync:
+  - `Chat` row: 10 → 20 commands; subcommand tags expanded to `message` `group` `search` `list-top-conversations`
+  - `Bot` row: 6 → 7 commands; subcommand tags expanded with `create` `search-groups`
+  - Total raised to **152 commands across 14 products**
+
 ## [1.0.12] - 2026-04-21
 
 Product-surface expansion: first-class `doc` (DingTalk Docs) and `minutes` (AI Minutes) skill references, refreshed `aitable` guide aligned with the shipped binary (including dashboard / chart / export), and a README sync that brings the full command catalog to **141 commands across 14 products**.

README.md

@@ -350,8 +350,8 @@ dws chat message send-by-bot --robot-code BOT_CODE --group GROUP_ID \
 | Service | Command | Commands | Subcommands | Description |
 |---------|---------|:--------:|-------------|-------------|
 | Contact | `contact` | 6 | `user` `dept` | Search users by name/mobile, batch query, departments, current user profile |
-| Chat | `chat` | 10 | `message` `group` `search` | Group CRUD, member management, bot messaging, webhook |
-| Bot | `chat bot` | 6 | `bot` `group` `message` `search` | Robot creation/search, group/single messaging, webhook, message recall |
+| Chat / IM | `chat` (alias `im`) | 20 | `message` `group` `search` `list-top-conversations` | User-identity send (group / 1-on-1 / open-dingtalk-id), Markdown + image, @mentions; read & search conversations (list, list-all, topic replies, by-sender, mentions, focused, unread, search, info, top / common groups); group CRUD + member management |
+| Bot | `chat bot` | 7 | `bot` `group` `message` `search` `create` `search-groups` | Bot create / search, search bot groups; bot-identity group & batch-1:1 messaging, Webhook, message recall; add bot to group |
 | Calendar | `calendar` | 13 | `event` `room` `participant` `busy` | Events CRUD, meeting room booking, free-busy query, participant management |
 | Todo | `todo` | 6 | `task` | Create, list, update, done, get detail, delete |
 | Approval | `oa` | 9 | `approval` | Approve/reject/revoke, pending tasks, initiated instances, process list |
@@ -364,7 +364,7 @@ dws chat message send-by-bot --robot-code BOT_CODE --group GROUP_ID \
 | Workbench | `workbench` | 2 | `app` | Batch query app details |
 | DevDoc | `devdoc` | 1 | `article` | Search platform docs and error codes |
 
-> 141 commands across 14 products. Run `dws --help` for the full list, or `dws <service> --help` for subcommands.
+> 152 commands across 14 products. Run `dws --help` for the full list, or `dws <service> --help` for subcommands.
 
 <details>
 <summary>Coming soon</summary>