Add AST cache files for AltchaService, API documentation, and AltchaService tests

- Created JSON representation of AltchaService class and its methods, including imports and relationships.
- Added documentation for the Captcha API, detailing endpoints and responses.
- Introduced test cases for AltchaService, covering various functionalities and edge cases.

config/services.yaml

@@ -52,7 +52,7 @@ services:
     App\Shared\Captcha\AltchaService:
         arguments:
             $hmacKey:       '%env(ALTCHA_HMAC_KEY)%'
-            $enabled:       '%env(bool:ALTCHA_ENABLED)%'
+            $envEnabled:    '%env(bool:ALTCHA_ENABLED)%'
             $maxNumber:     '%env(int:ALTCHA_MAX_NUMBER)%'
             $expireSeconds: '%env(int:ALTCHA_EXPIRE_SECONDS)%'
             $altchaPool:    '@altcha.pool'