chore: remove temporary auth debug endpoint after login fix

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/api/debug/session/route.ts

@@ -1,57 +0,0 @@
-import { NextRequest, NextResponse } from 'next/server';
-import { createServerClient } from '@supabase/ssr';
-
-/** Temporary login diagnostics — remove after auth is stable. */
-export async function GET(req: NextRequest) {
-  const cookieSummary = req.cookies.getAll().map((c) => ({
-    name: c.name,
-    len: c.value.length,
-    prefix: c.value.slice(0, 24),
-  }));
-
-  const supabase = createServerClient(
-    process.env.NEXT_PUBLIC_SUPABASE_URL!,
-    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
-    {
-      cookies: {
-        getAll() {
-          return req.cookies.getAll();
-        },
-        setAll() {},
-      },
-    }
-  );
-
-  const sessionRes = await supabase.auth.getSession();
-  let userRes: Awaited<ReturnType<typeof supabase.auth.getUser>> | null = null;
-  let userErr: string | null = null;
-  try {
-    userRes = await supabase.auth.getUser();
-  } catch (e: unknown) {
-    userErr = e instanceof Error ? e.message : String(e);
-  }
-
-  return NextResponse.json({
-    ts: new Date().toISOString(),
-    commitHint: 'getSession-middleware',
-    cookies: cookieSummary,
-    session: {
-      hasSession: Boolean(sessionRes.data.session),
-      email: sessionRes.data.session?.user?.email ?? null,
-      role:
-        sessionRes.data.session?.user?.app_metadata?.role ||
-        sessionRes.data.session?.user?.user_metadata?.role ||
-        null,
-      error: sessionRes.error?.message ?? null,
-    },
-    user: {
-      hasUser: Boolean(userRes?.data?.user),
-      email: userRes?.data?.user?.email ?? null,
-      role:
-        userRes?.data?.user?.app_metadata?.role ||
-        userRes?.data?.user?.user_metadata?.role ||
-        null,
-      error: userRes?.error?.message ?? userErr,
-    },
-  });
-}

src/middleware.ts

@@ -63,7 +63,6 @@ export async function middleware(req: NextRequest) {
   const isPublic =
     path === '/login' ||
     path === '/api/health' ||
-    path === '/api/debug/session' ||
     path.startsWith('/api/webhooks/') ||
     path.startsWith('/api/cron/') ||
     path === '/_4v_attr.js' ||