refactor(pairing): remove redundant CLI commands

CLI pairing commands (list/approve/deny/revoke) are fully replaceable by
`nanobot agent -m "/pairing ..."`, which routes through the same
CommandRouter and handle_pairing_command() backend. Removing them
cuts 86 lines of duplicate surface area without losing any functionality.

- Remove pairing_app and its 4 subcommands from cli/commands.py
- Update format_pairing_reply() to drop the "Via CLI" line

nanobot/cli/commands.py

@@ -1620,91 +1620,5 @@ def _login_github_copilot() -> None:
         raise typer.Exit(1)
 
 
-# ============================================================================
-# Pairing Commands
-# ============================================================================
-
-pairing_app = typer.Typer(help="Manage DM pairing approvals")
-app.add_typer(pairing_app, name="pairing")
-
-
-@pairing_app.command("list")
-def pairing_list():
-    """Show pending pairing requests."""
-    from nanobot.pairing import format_expiry, list_pending
-
-    pending = list_pending()
-    if not pending:
-        console.print("[dim]No pending pairing requests.[/dim]")
-        return
-
-    table = Table(title="Pending Pairing Requests")
-    table.add_column("Code", style="cyan")
-    table.add_column("Channel", style="magenta")
-    table.add_column("Sender ID", style="yellow")
-    table.add_column("Expires", style="green")
-
-    for item in pending:
-        expiry = format_expiry(item.get("expires_at", 0))
-        table.add_row(
-            item["code"],
-            item["channel"],
-            item["sender_id"],
-            expiry,
-        )
-
-    console.print(table)
-
-
-@pairing_app.command("approve")
-def pairing_approve(
-    code: str = typer.Argument(..., help="Pairing code to approve"),
-):
-    """Approve a pending pairing code."""
-    from nanobot.pairing import approve_code
-
-    result = approve_code(code)
-    if result is None:
-        console.print(f"[red]✗[/red] Invalid or expired pairing code: {code}")
-        raise typer.Exit(1)
-
-    channel, sender_id = result
-    console.print(
-        f"[green]✓[/green] Approved pairing code {code} — "
-        f"{sender_id} can now access {channel}"
-    )
-
-
-@pairing_app.command("deny")
-def pairing_deny(
-    code: str = typer.Argument(..., help="Pairing code to deny"),
-):
-    """Deny and discard a pending pairing code."""
-    from nanobot.pairing import deny_code
-
-    if deny_code(code):
-        console.print(f"[green]✓[/green] Denied pairing code {code}")
-    else:
-        console.print(f"[yellow]! Pairing code {code} not found or already expired[/yellow]")
-
-
-@pairing_app.command("revoke")
-def pairing_revoke(
-    channel: str = typer.Argument(..., help="Channel name (e.g. telegram)"),
-    user_id: str = typer.Argument(..., help="User ID to revoke"),
-):
-    """Revoke an approved sender from a channel."""
-    from nanobot.pairing import revoke
-
-    if revoke(channel, user_id):
-        console.print(
-            f"[green]✓[/green] Revoked {user_id} from {channel}"
-        )
-    else:
-        console.print(
-            f"[yellow]! {user_id} was not in the approved list for {channel}[/yellow]"
-        )
-
-
 if __name__ == "__main__":
     app()

nanobot/pairing/store.py

@@ -187,8 +187,7 @@ def format_pairing_reply(code: str) -> str:
         "Hi there! This assistant only responds to approved users.\n\n"
         f"Your pairing code is: `{code}`\n\n"
         "To get access, ask the owner to approve this code:\n"
-        f"- In this chat: send `/pairing approve {code}`\n"
+        f"- In this chat: send `/pairing approve {code}`"
-        f"- Via CLI: run `nanobot pairing approve {code}`"
     )