feat(guards): wire elicitation into notifications/vm/rclone/settings/storage

Replace hard ToolError guard with gate_destructive_action() in 5 tools so
destructive actions prompt for interactive confirmation via MCP elicitation
when ctx is available, and still accept confirm=True as a bypass. Update
all test match strings from "destructive" to "not confirmed" accordingly.

unraid_mcp/tools/settings.py

@@ -6,11 +6,12 @@ configuration and UPS monitoring.
 
 from typing import Any, Literal, get_args
 
-from fastmcp import FastMCP
+from fastmcp import Context, FastMCP
 
 from ..config.logging import logger
 from ..core.client import make_graphql_request
 from ..core.exceptions import ToolError, tool_error_handler
+from ..core.guards import gate_destructive_action
 
 
 MUTATIONS: dict[str, str] = {
@@ -51,6 +52,7 @@ def register_settings_tool(mcp: FastMCP) -> None:
     @mcp.tool()
     async def unraid_settings(
         action: SETTINGS_ACTIONS,
+        ctx: Context | None = None,
         confirm: bool = False,
         settings_input: dict[str, Any] | None = None,
         ups_config: dict[str, Any] | None = None,
@@ -64,8 +66,13 @@ def register_settings_tool(mcp: FastMCP) -> None:
         if action not in ALL_ACTIONS:
             raise ToolError(f"Invalid action '{action}'. Must be one of: {sorted(ALL_ACTIONS)}")
 
-        if action in DESTRUCTIVE_ACTIONS and not confirm:
-            raise ToolError(f"Action '{action}' is destructive. Set confirm=True to proceed.")
+        await gate_destructive_action(
+            ctx,
+            action,
+            DESTRUCTIVE_ACTIONS,
+            confirm,
+            "Configure UPS monitoring. This will overwrite the current UPS daemon settings.",
+        )
 
         with tool_error_handler("settings", action, logger):
             logger.info(f"Executing unraid_settings action={action}")