feat: add form components and UI elements for enhanced user interaction

- Introduced Form, FormField, FormItem, FormLabel, FormControl, FormDescription, FormMessage components for structured form handling.
- Added Input, Textarea, and Select components for user input.
- Implemented Label and Separator components for better UI organization.
- Created Skeleton component for loading states.
- Developed Toast and Toaster components for user notifications.
- Integrated useToast hook for managing toast notifications.
- Established AI analysis functionality with analyzeJournalWithLocalAI.
- Set up Dexie for local database management with Journal and Task models.
- Configured Supabase client for server-side and browser-side interactions.
- Defined database schema for journals, tasks, chat sessions, and messages with Row Level Security policies.

Co-authored-by: Copilot <copilot@github.com>

lib/supabase/middleware.ts

@@ -0,0 +1,50 @@
+import { createServerClient } from '@supabase/ssr'
+import { NextResponse, type NextRequest } from 'next/server'
+
+export async function updateSession(request: NextRequest) {
+  let supabaseResponse = NextResponse.next({
+    request,
+  })
+
+  const supabase = createServerClient(
+    process.env.NEXT_PUBLIC_SUPABASE_URL!,
+    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
+    {
+      cookies: {
+        getAll() {
+          return request.cookies.getAll()
+        },
+        setAll(cookiesToSet) {
+          cookiesToSet.forEach(({ name, value, options }) => request.cookies.set(name, value))
+          supabaseResponse = NextResponse.next({
+            request,
+          })
+          cookiesToSet.forEach(({ name, value, options }) =>
+            supabaseResponse.cookies.set(name, value, options)
+          )
+        },
+      },
+    }
+  )
+
+  // IMPORTANT: Avoid writing any logic between createServerClient and
+  // supabase.auth.getUser(). A simple mistake could make it very hard to debug
+  // issues with users being randomly logged out.
+
+  const {
+    data: { user },
+  } = await supabase.auth.getUser()
+
+  if (
+    !user &&
+    !request.nextUrl.pathname.startsWith('/login') &&
+    !request.nextUrl.pathname.startsWith('/auth')
+  ) {
+    // no user, potentially respond by redirecting the user to the login page
+    const url = request.nextUrl.clone()
+    url.pathname = '/login'
+    return NextResponse.redirect(url)
+  }
+
+  return supabaseResponse
+}