collectBookData() was only extracting steps for 3 hardcoded sections
(membership, sports-activity, treasury) using regex on view files.
All other sections (45 of 48) were passed without steps, rendering
only subtitle text in the PDF. Now calls TutorialRegistry::getSteps()
for every tutorial in every section.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Every tutorial now has 3-7 explicit steps with consistent format:
- Navigation step first (how to get to the page)
- Action steps in the middle (what to fill/click)
- Confirmation/result step last (with success/warning callouts)

Sections fixed: parents, medical-board, access-matrix, rules, dashboard,
family, transfers-waivers, trainer-portal, parent-portal

Also fixed forms.print-form (was 2 steps, now 3).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Add 84 sub-page screenshots for tutorials (accounting, HR, inventory, procurement, sales, system pages)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>