Add -passwordHash support (#42)

* Update main.go

* Update main.go

* Set

* Set password to db

* Main

- Password hash, after trimming, cannot be empty

* Backend

- Assume incoming data is already a hash

* Main

- CLeaned up

* README

- Updated command-line argument documentation

* Menton this

* lower case

* SQLITE Driver

- Removed comments

* Main

- `passwordhash` only valiud when non-""

* Main

- Try running `Cost([]byte)` on the UTF-8 bytes to verify the hash

internal/storage/sqlite3/table_config.go

@@ -74,12 +74,8 @@ func (t *TableConfig) ConfigSet(key, value string) error {
 	})
 }
 
-func (t *TableConfig) ConfigSetPassword(password string) error {
-	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
-	if err != nil {
-		return fmt.Errorf("bcrypt.GenerateFromPassword: %w", err)
-	}
-	return t.ConfigSet("password", string(hash))
+func (t *TableConfig) ConfigSetPassword(passwordHash string) error {
+	return t.ConfigSet("password", passwordHash)
 }
 
 func (t *TableConfig) ConfigTryPassword(password string) (bool, error) {