add logging and database migration

migrations/20251128_210200_initial.sql

@@ -0,0 +1,20 @@
+
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS schema_version (
+    version TEXT PRIMARY KEY,
+    applied_at TEXT NOT NULL DEFAULT (datetime('now'))
+);
+
+CREATE TABLE users (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    date_create TEXT NOT NULL DEFAULT (datetime('now')),
+    username TEXT UNIQUE NOT NULL,
+    password_hash BLOB NOT NULL,
+    role TEXT NOT NULL DEFAULT 'guest'
+
+);
+
+INSERT INTO schema_version (version) VALUES ('20251128_210200_initial');
+
+COMMIT;