fix: enhance error handling in Nav component and provide fallback for Supabase client initialization

fix: upload actual schema.sql content — removed hardcoded admin email

🛡️ v4.1: Fix all critical bugs, security issues, and performance problems (#2)

v3.0: Update schema.sql — add admin setup command for ankygaur9972@gmail.com with admin role + pro plan

v3.0: Fix admin-guard.ts — remove hardcoded email, check DB role only

Upload web/lib/supabase/schema.sql

Fix auth redirect URLs: use NEXT_PUBLIC_SITE_URL instead of window.location.origin (fixes localhost in verification emails)

Fix schema: create teams BEFORE profiles (fixes foreign key error), merge admin schema into main

Admin panel: dashboard (stats), user management (search/plan change/ban), scan viewer (delete), team manager, API key viewer (revoke), activity logs — admin: ankygaur9972@gmail.com

Build all missing features: PDF/DOCX upload, team system (5 seats, invites, shared dashboard), API keys (generate/revoke/limits), custom clause rules (CRUD + regex)

Fix: 7-day session config, plan gating on scanner (10 free/month), file upload button, upgrade modal when limit hit

Replace Stripe with Razorpay: subscriptions, webhooks, checkout modal, INR pricing

v3: All missing features — auth callback, settings, PDF export, email (Resend), JWT auth, /api/history, SaulLM integration, extension icons, Supabase 0.10 breaking changes, Stripe v22

v2: Fix all versions + minimal UI redesign (no gradients, clean layout)

🛡️ ClauseGuard v1.0 — Full codebase: Extension + Website + API + ML