Add automatic SSL certificate generation

database/init.sql

@@ -20,6 +20,7 @@ CREATE TABLE IF NOT EXISTS pgp_keys (
     user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
     public_key TEXT NOT NULL,
     fingerprint VARCHAR(40) UNIQUE NOT NULL,
+    key_origin VARCHAR(20) DEFAULT 'imported',
     created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
 );