Move the remaining panel explanations into tooltips

A node setting's description comes off the backend JSON schema, so every
node type's panel still printed a paragraph under each field. It moves to
the field label, which is the change that makes the node panel read as a
list rather than a page.

Alerts, Modules and Remote access follow the same shape. A page keeps a
one-line description under its h1 — a page is arrived at rather than
scanned — and the rest goes behind the heading's tooltip.

Verified on the running stack: the tooltip opens on tap in the phone sheet
and on hover on the desktop panel.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015YrQnKV3bnQd4K342y8tKj

frontend/src/components/UserSettings/RemoteAccess.tsx

@@ -2,6 +2,7 @@ import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query"
 import { useState } from "react"
 
 import { CloudService } from "@/client"
+import { InfoTip } from "@/components/Flow/SidePanel"
 import { Button } from "@/components/ui/button"
 import {
   Card,
@@ -154,15 +155,25 @@ export function RemoteAccess() {
 
             <div className="flex flex-col gap-4">
               <div>
-                <h3 className="font-medium">Remote users</h3>
+                <div className="flex items-center gap-1">
+                  <h3 className="font-medium">Remote users</h3>
+                  <InfoTip label="Remote users">
+                    They get a user of their own here, not yours, and never a
+                    superuser, so they cannot pass access on.
+                  </InfoTip>
+                </div>
                 <p className="text-sm text-muted-foreground">
-                  Let someone else reach this instance through the portal. They
-                  get a user of their own here — not yours, and never a
-                  superuser, so they cannot pass access on.
+                  Let someone else reach this instance through the portal.
                 </p>
               </div>
               <div className="grid gap-2">
-                <Label htmlFor="join-code">Code</Label>
+                <div className="flex items-center gap-1">
+                  <Label htmlFor="join-code">Code</Label>
+                  <InfoTip label="Code">
+                    Added users appear under Admin → Users; deleting them there
+                    ends their access.
+                  </InfoTip>
+                </div>
                 <Input
                   id="join-code"
                   value={joinCode}
@@ -174,8 +185,6 @@ export function RemoteAccess() {
                 />
                 <p className="text-xs text-muted-foreground">
                   They get a code at fluksio.com → Instances → Join an instance.
-                  Added users appear under Admin → Users; deleting them there
-                  ends their access.
                 </p>
               </div>
               <div>