* fix(chat,cmdutil): restore group @-mentions and members list subcommand
Two CLI regressions surfaced after PR #170 promoted hardcoded helpers over
the discovery envelope:
1. issue #177 — `dws chat message send --group ... --at-users ...` failed
with `unknown flag: --at-users` on v1.0.16. The hardcoded helper that
replaced the v1.0.15 envelope leaf only declared --group / --user /
--open-dingtalk-id / --text / --title and silently dropped the envelope's
--at-users / --at-all / --at-mobiles flags, so any group @-mention call
bounced at cobra's flag parser before ever reaching the MCP tool.
Add the three flags back to `newChatMessageSendCommand` and forward
atUserIds / isAtAll / atMobiles to `send_message_as_user` in the
`--group` branch; reject the flags loudly outside `--group` to avoid
silently swallowing user intent in single-chat mode (single-chat tools
have no @-mention semantics).
2. issue #164 — `dws chat group members --id <openConversationId>` returned
`unknown flag: --id`. The helper had `members` as a "group with bare
RunE + --id/--cursor flags" while the envelope publishes `members` as a
leaf for `get_group_members`; the merge layer's shape-mismatch branch
treats envelope as authority and silently drops the entire helper
subtree (list / add / remove / add-bot all become unreachable).
Restructure helper-side `members` into a pure group container and
promote list to its own explicit subcommand:
dws chat group members list --id <openconversation_id>
And extend `pkg/cmdutil/MergeHardcodedLeaves` so the existing
OverridePriority annotation also applies to the leaf↔group shape
mismatch — when the helper group carries strictly higher priority it
replaces the dynamic leaf, mirroring the leaf↔leaf override semantics
that PR #170 already established. Without this the helper's `list`
subcommand stays unreachable and the user-visible bug persists.
Tests:
- `internal/helpers/chat_test.go`: forwards-at-mentions (group + each
flag variant), rejects-at-mentions-outside-group (single-chat
validation), members-list-subcommand (structure + execution).
- `internal/app/legacy_test.go`: pickCommands integration test that
reproduces the #164 shape mismatch end-to-end and asserts the helper
subtree survives.
- `pkg/cmdutil/leaf_merge_test.go`: positive + boundary (equal priority)
cases for the new leaf↔group promotion path.
Verified end-to-end against existing chat helper tests, app pickCommands
tests, cmdutil merge tests, cobracmd priority tests, compat dynamic
command tests — all green.
Skill docs (`skills/references/products/chat.md`) updated to teach the
new `members list` path with a migration note, and to surface the
restored `--at-mobiles` flag alongside `--at-all` / `--at-users`.
Closes#177Closes#164
* fix(chat): resolve merge conflict in command Long text
Combine --title-required wording from #174 with at-mention
documentation introduced in this PR. CI build was failing on
unresolved <<<<<<< / >>>>>>> markers left in chat.go.