feat(web): add shared dialog wrapper

- introduce a reusable dialog component for consistent header, body, and footer layout.
- support per-dialog sizing, trigger rendering, initial focus, and close button controls.
- preserve base dialog open and close motion classes while allowing content-specific styling.

web/default/src/components/dialog.tsx

+/*
+Copyright (C) 2023-2026 QuantumNous
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+For commercial licensing, please contact support@quantumnous.com
+*/
+import * as React from 'react'
+import { cn } from '@/lib/utils'
+import {
+  Dialog as DialogRoot,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+  DialogTrigger,
+} from '@/components/ui/dialog'
+
+type DialogProps = React.ComponentProps<typeof DialogRoot> & {
+  title: React.ReactNode
+  description?: React.ReactNode
+  children: React.ReactNode
+  trigger?: React.ReactElement
+  footer?: React.ReactNode
+  contentHeight?: React.CSSProperties['height']
+  contentClassName?: string
+  headerClassName?: string
+  titleClassName?: string
+  descriptionClassName?: string
+  bodyClassName?: string
+  footerClassName?: string
+  initialFocus?: boolean
+  showCloseButton?: boolean
+}
+
+const dialogContentMotionClassName =
+  'data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95 duration-100'
+
+export function Dialog({
+  title,
+  description,
+  children,
+  trigger,
+  footer,
+  contentHeight = 'min(58vh, 520px)',
+  contentClassName,
+  headerClassName,
+  titleClassName,
+  descriptionClassName,
+  bodyClassName,
+  footerClassName,
+  initialFocus,
+  showCloseButton,
+  ...dialogProps
+}: DialogProps) {
+  return (
+    <DialogRoot {...dialogProps}>
+      {trigger ? <DialogTrigger render={trigger} /> : null}
+      <DialogContent
+        className={cn(
+          'flex max-h-[calc(100vh-2rem)] w-full flex-col gap-4 overflow-hidden p-4 sm:max-w-2xl sm:p-6',
+          contentClassName,
+          dialogContentMotionClassName
+        )}
+        initialFocus={initialFocus}
+        showCloseButton={showCloseButton}
+        style={
+          {
+            '--dialog-content-height': contentHeight,
+          } as React.CSSProperties
+        }
+      >
+        <DialogHeader
+          className={cn('flex-shrink-0 text-start', headerClassName)}
+        >
+          <DialogTitle className={titleClassName}>{title}</DialogTitle>
+          {description ? (
+            <DialogDescription className={descriptionClassName}>
+              {description}
+            </DialogDescription>
+          ) : null}
+        </DialogHeader>
+
+        <div
+          className={cn(
+            '-mx-1 min-h-0 overflow-x-hidden overflow-y-auto overscroll-contain',
+            'h-[var(--dialog-content-height)] max-h-[calc(100vh-14rem)]'
+          )}
+        >
+          <div
+            className={cn(
+              'min-w-0 px-1 py-1',
+              '[&_form]:overflow-x-visible',
+              '[&_[data-slot=scroll-area-viewport]]:px-1 [&_[data-slot=scroll-area-viewport]]:py-1',
+              bodyClassName
+            )}
+          >
+            {children}
+          </div>
+        </div>
+
+        {footer ? (
+          <DialogFooter
+            className={cn(
+              'flex-shrink-0 gap-2 sm:-mx-6 sm:-mb-6 sm:justify-end sm:p-6',
+              footerClassName
+            )}
+          >
+            {footer}
+          </DialogFooter>
+        ) : null}
+      </DialogContent>
+    </DialogRoot>
+  )
+}