Initial commit

sql/create_auth_audit_table.sql

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+-- SQL to create auth_audit table in Supabase
+CREATE OR REPLACE FUNCTION public.create_auth_audit_table()
+RETURNS void
+LANGUAGE sql
+AS $$
+  CREATE TABLE IF NOT EXISTS auth_audit (
+    id BIGSERIAL PRIMARY KEY,
+    user_id UUID REFERENCES users(id),
+    action TEXT NOT NULL,
+    timestamp TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    details TEXT,
+    ip_address TEXT
+  );
+
+  CREATE INDEX IF NOT EXISTS idx_auth_audit_user_id ON auth_audit(user_id);
+  CREATE INDEX IF NOT EXISTS idx_auth_audit_timestamp ON auth_audit(timestamp);
+$$;