feat(i18n): mark forms.py field labels and help_text for translation

Wraps 180 literal label=/help_text= strings in dojo/forms.py with gettext_lazy so makemessages extracts them. Conservative scripted pass: only string literals immediately followed by , or ) are wrapped, so f-strings, constants (e.g. labels.ORG_LABEL), and already-wrapped values are left alone. Display-only; no form logic changes (lazy strings compare equal to their English source). Verified: ruff + forms import and instantiation.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: devGregA