- validateEntry no longer requires encryptedPassword; only title is required
(schema.js). encryptedPassword documented as optional.
- EntryForm: decrypt-guards empty password on edit; stores empty string (no
encryption) when the password field is blank; label is 'Password' (no *).
- EntryDetail: only renders the Password field when the entry has one;
decrypt guards empty.
- Tests: schema validation updated (password optional); 143 total pass.
