refactor: remove extension toggle system — compiled-in extensions are always active (#59)

The runtime toggle system (extension_toggles table, API routes, hooks, UI components)
added unnecessary complexity. Extensions controlled via extensions.config.json at build
time are now always active for all users. This removes ~835 lines of toggle-related code
including API routes, DB queries, the ExtensionToggleButton component, useEnabledExtensions
and useExtensionToggle hooks, and the toggle-check module. AI consent gating remains
unchanged.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

components/extensions/ExtensionCard.tsx

@@ -1,43 +1,34 @@
-'use client'
-
 import { Card, CardContent } from '@/components/ui/card'
 import { resolveIcon } from '@/lib/extensions/icon-resolver'
 import type { ExtensionDefinition } from '@/lib/extensions/types'
 import CategoryBadge from './CategoryBadge'
-import ExtensionToggleButton from './ExtensionToggleButton'
 import Link from 'next/link'
 
 export default function ExtensionCard({ extension }: { extension: ExtensionDefinition }) {
-   
+
   const Icon = resolveIcon(extension.icon)
 
   return (
     <Card className="group relative">
       <CardContent className="pt-6">
-        <div className="flex items-start justify-between gap-3">
-          <div className="flex items-start gap-3 min-w-0">
-            <div className="flex h-10 w-10 items-center justify-center rounded-lg bg-primary/10 flex-shrink-0">
-              <Icon className="h-5 w-5 text-primary" />
-            </div>
-            <div className="min-w-0">
-              <Link
-                href={`/extensions/${extension.sector}/${extension.slug}`}
-                className="text-sm font-medium hover:underline"
-              >
-                {extension.name}
-              </Link>
-              <p className="text-xs text-muted-foreground mt-0.5 line-clamp-2">
-                {extension.description}
-              </p>
-              <div className="mt-2">
-                <CategoryBadge category={extension.category} />
-              </div>
+        <div className="flex items-start gap-3 min-w-0">
+          <div className="flex h-10 w-10 items-center justify-center rounded-lg bg-primary/10 flex-shrink-0">
+            <Icon className="h-5 w-5 text-primary" />
+          </div>
+          <div className="min-w-0">
+            <Link
+              href={`/extensions/${extension.sector}/${extension.slug}`}
+              className="text-sm font-medium hover:underline"
+            >
+              {extension.name}
+            </Link>
+            <p className="text-xs text-muted-foreground mt-0.5 line-clamp-2">
+              {extension.description}
+            </p>
+            <div className="mt-2">
+              <CategoryBadge category={extension.category} />
             </div>
           </div>
-          <ExtensionToggleButton
-            sectorSlug={extension.sector}
-            extensionSlug={extension.slug}
-          />
         </div>
       </CardContent>
     </Card>

components/extensions/ExtensionToggleButton.tsx

@@ -1,71 +0,0 @@
-'use client'
-
-import { useState } from 'react'
-import { Switch } from '@/components/ui/switch'
-import { Button } from '@/components/ui/button'
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogFooter,
-  DialogHeader,
-  DialogTitle,
-} from '@/components/ui/dialog'
-import { useExtensionToggle } from '@/lib/extensions/hooks'
-
-export default function ExtensionToggleButton({
-  sectorSlug,
-  extensionSlug,
-  subscriptionNotice,
-}: {
-  sectorSlug: string
-  extensionSlug: string
-  subscriptionNotice?: string
-}) {
-  const { enabled, isLoading, toggle } = useExtensionToggle(sectorSlug, extensionSlug)
-  const [showConfirm, setShowConfirm] = useState(false)
-
-  function handleToggle() {
-    // Show confirmation dialog when enabling an extension with a subscription notice
-    if (!enabled && subscriptionNotice) {
-      setShowConfirm(true)
-      return
-    }
-    toggle()
-  }
-
-  function handleConfirm() {
-    setShowConfirm(false)
-    toggle()
-  }
-
-  return (
-    <>
-      <Switch
-        checked={enabled}
-        onCheckedChange={handleToggle}
-        disabled={isLoading}
-        aria-label={enabled ? 'Inaktivera tillägg' : 'Aktivera tillägg'}
-      />
-
-      {subscriptionNotice && (
-        <Dialog open={showConfirm} onOpenChange={setShowConfirm}>
-          <DialogContent>
-            <DialogHeader>
-              <DialogTitle>Extern prenumeration krävs</DialogTitle>
-              <DialogDescription>{subscriptionNotice}</DialogDescription>
-            </DialogHeader>
-            <DialogFooter>
-              <Button variant="outline" onClick={() => setShowConfirm(false)}>
-                Avbryt
-              </Button>
-              <Button onClick={handleConfirm}>
-                Jag förstår, aktivera
-              </Button>
-            </DialogFooter>
-          </DialogContent>
-        </Dialog>
-      )}
-    </>
-  )
-}