fix: InputType.HIDDEN no longer renders a visible label (#14)

[jannikbx]

Summary

Fixes #14 — InputType.HIDDEN form fields no longer render a visible <label> or error <div>. Hidden inputs are now rendered as bare <input type="hidden"> elements.

✅ Commits are GPG signed

Changes

• htmforge/components/form_field.py: Add early return in render() for InputType.HIDDEN — skips label and error container, returns only the control element
• tests/test_components.py: Add two new test cases:
  • test_hidden_input_renders_no_label_or_error — verifies bare hidden input without label/error
  • test_hidden_input_with_error_still_no_label — verifies error text is not rendered even when set

Before

field = FormField(name="csrf_token", label_text="CSRF", input_type=InputType.HIDDEN, error="bad")
print(field.to_html())
# → CSRF  ← label and error div visible!

After

field = FormField(name="csrf_token", label_text="CSRF", input_type=InputType.HIDDEN, error="bad")
print(field.to_html())
# → 

Test Results

TestFormField::test_hidden_input_renders_no_label_or_error PASSED
TestFormField::test_hidden_input_with_error_still_no_label PASSED
All 12 FormField tests passing ✅