feat(gateway): unify QQBot branding, add PLATFORM_HINTS, fix streaming, restore missing setup functions

- Rename platform from 'qq' to 'qqbot' across all integration points
  (Platform enum, toolset, config keys, import paths, file rename qq.py → qqbot.py)
- Add PLATFORM_HINTS for QQBot in prompt_builder (QQ supports markdown)
- Set SUPPORTS_MESSAGE_EDITING = False to skip streaming on QQ
  (prevents duplicate messages from non-editable partial + final sends)
- Add _send_qqbot() standalone send function for cron/send_message tool
- Add interactive _setup_qq() wizard in hermes_cli/setup.py
- Restore missing _setup_signal/email/sms/dingtalk/feishu/wecom/wecom_callback
  functions that were lost during the original merge

hermes_cli/setup.py

@@ -1969,6 +1969,54 @@ def _setup_wecom_callback():
     _gw_setup()
 
 
+def _setup_qqbot():
+    """Configure QQ Bot gateway."""
+    print_header("QQ Bot")
+    existing = get_env_value("QQ_APP_ID")
+    if existing:
+        print_info("QQ Bot: already configured")
+        if not prompt_yes_no("Reconfigure QQ Bot?", False):
+            return
+
+    print_info("Connects Hermes to QQ via the Official QQ Bot API (v2).")
+    print_info("   Requires a QQ Bot application at q.qq.com")
+    print_info("   Reference: https://bot.q.qq.com/wiki/develop/api-v2/")
+    print()
+
+    app_id = prompt("QQ Bot App ID")
+    if not app_id:
+        print_warning("App ID is required — skipping QQ Bot setup")
+        return
+    save_env_value("QQ_APP_ID", app_id.strip())
+
+    client_secret = prompt("QQ Bot App Secret", password=True)
+    if not client_secret:
+        print_warning("App Secret is required — skipping QQ Bot setup")
+        return
+    save_env_value("QQ_CLIENT_SECRET", client_secret)
+    print_success("QQ Bot credentials saved")
+
+    print()
+    print_info("🔒 Security: Restrict who can DM your bot")
+    print_info("   Use QQ user OpenIDs (found in event payloads)")
+    print()
+    allowed_users = prompt("Allowed user OpenIDs (comma-separated, leave empty for open access)")
+    if allowed_users:
+        save_env_value("QQ_ALLOWED_USERS", allowed_users.replace(" ", ""))
+        print_success("QQ Bot allowlist configured")
+    else:
+        print_info("⚠️  No allowlist set — anyone can DM the bot!")
+
+    print()
+    print_info("📬 Home Channel: OpenID for cron job delivery and notifications.")
+    home_channel = prompt("Home channel OpenID (leave empty to set later)")
+    if home_channel:
+        save_env_value("QQ_HOME_CHANNEL", home_channel)
+
+    print()
+    print_success("QQ Bot configured!")
+
+
 def _setup_bluebubbles():
     """Configure BlueBubbles iMessage gateway."""
     print_header("BlueBubbles (iMessage)")
@@ -2034,10 +2082,10 @@ def _setup_bluebubbles():
     print_info("   Install: https://docs.bluebubbles.app/helper-bundle/installation")
 
 
-def _setup_qq():
+def _setup_qqbot():
     """Configure QQ Bot (Official API v2) via standard platform setup."""
     from hermes_cli.gateway import _PLATFORMS
-    qq_platform = next((p for p in _PLATFORMS if p["key"] == "qq"), None)
+    qq_platform = next((p for p in _PLATFORMS if p["key"] == "qqbot"), None)
     if qq_platform:
         from hermes_cli.gateway import _setup_standard_platform
         _setup_standard_platform(qq_platform)
@@ -2106,7 +2154,7 @@ _GATEWAY_PLATFORMS = [
     ("WeCom Callback (Self-Built App)", "WECOM_CALLBACK_CORP_ID", _setup_wecom_callback),
     ("Weixin (WeChat)", "WEIXIN_ACCOUNT_ID", _setup_weixin),
     ("BlueBubbles (iMessage)", "BLUEBUBBLES_SERVER_URL", _setup_bluebubbles),
-    ("QQ Bot", "QQ_APP_ID", _setup_qq),
+    ("QQ Bot", "QQ_APP_ID", _setup_qqbot),
     ("Webhooks (GitHub, GitLab, etc.)", "WEBHOOK_ENABLED", _setup_webhooks),
 ]
 
@@ -2158,6 +2206,7 @@ def setup_gateway(config: dict):
         or get_env_value("WECOM_BOT_ID")
         or get_env_value("WEIXIN_ACCOUNT_ID")
         or get_env_value("BLUEBUBBLES_SERVER_URL")
+        or get_env_value("QQ_APP_ID")
         or get_env_value("WEBHOOK_ENABLED")
     )
     if any_messaging:
@@ -2179,6 +2228,8 @@ def setup_gateway(config: dict):
             missing_home.append("Slack")
         if get_env_value("BLUEBUBBLES_SERVER_URL") and not get_env_value("BLUEBUBBLES_HOME_CHANNEL"):
             missing_home.append("BlueBubbles")
+        if get_env_value("QQ_APP_ID") and not get_env_value("QQ_HOME_CHANNEL"):
+            missing_home.append("QQBot")
 
         if missing_home:
             print()