Feat: start sqlite tribe repository

backend/adapters/sqlite.py

@@ -0,0 +1,18 @@
+import sqlite3
+
+
+def create_tribe_table(conn) -> None:
+    cursor = conn.cursor()
+    cursor.execute(
+        """
+    CREATE TABLE IF NOT EXISTS tribes(
+     name TEXT PRIMARY KEY UNIQUE,
+     level TEXT
+    )
+    """
+    )
+    conn.commit()
+
+
+def create_db(conn) -> None:
+    create_tribe_table(conn)