Let setup wizard enable IM channels

scripts/wizard/steps/channels.py

@@ -0,0 +1,46 @@
+"""Step: browser-connectable IM channel enablement."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+from wizard.ui import ask_multi_choice, print_header, print_info, print_success
+
+
+CHANNEL_CONNECTION_OPTIONS: tuple[tuple[str, str, str], ...] = (
+    ("telegram", "Telegram", "direct messages through your DeerFlow bot"),
+    ("slack", "Slack", "workspace messages and mentions"),
+    ("discord", "Discord", "server messages through your DeerFlow bot"),
+    ("feishu", "Feishu / Lark", "messages through your DeerFlow app"),
+    ("dingtalk", "DingTalk", "Stream Push messages through your DeerFlow bot"),
+    ("wechat", "WeChat", "iLink messages through your DeerFlow bot"),
+    ("wecom", "WeCom", "messages through your DeerFlow AI bot"),
+)
+
+
+@dataclass
+class ChannelConnectionsStepResult:
+    enabled_providers: list[str]
+
+
+def run_channels_step(step_label: str = "Step 4/5") -> ChannelConnectionsStepResult:
+    print_header(f"{step_label} · IM Channels (optional)")
+    print_info("Choose which IM channels should appear in the DeerFlow sidebar and Settings.")
+    print_info("Credentials can be entered later from the browser with Connect or Modify.")
+    print()
+
+    options = [f"{display_name}  —  {description}" for _, display_name, description in CHANNEL_CONNECTION_OPTIONS]
+    selected = ask_multi_choice(
+        "Enable channels (comma-separated numbers, 'all', or Enter for none)",
+        options,
+        default=[],
+    )
+    enabled_providers = [CHANNEL_CONNECTION_OPTIONS[idx][0] for idx in selected]
+
+    if enabled_providers:
+        display_names = [CHANNEL_CONNECTION_OPTIONS[idx][1] for idx in selected]
+        print_success(f"Enabled channels: {', '.join(display_names)}")
+    else:
+        print_info("No IM channels selected; channel connections will stay disabled.")
+
+    return ChannelConnectionsStepResult(enabled_providers=enabled_providers)