Version 0.2.0

Changes:
- forbid to overwrite secrets of other users
- add some logs of success
- add validation on code (length 50)
- use same limiter for POST requests

internal/db/schema.sql

@@ -7,6 +7,7 @@ CREATE TABLE IF NOT EXISTS users (
 CREATE TABLE IF NOT EXISTS secrets (
     code TEXT PRIMARY KEY,
     value TEXT NOT NULL,
+    user TEXT REFERENCES users(login) NOT NULL,
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );