Fix 5 support ticket bugs: AJAX errors, capacity validation, audit export, player lookup, fee display

TKT-59: ExceptionHandler now returns JSON for AJAX/XHR requests instead of
HTML error pages. Booking wizard JS improved to show actual error messages.

TKT-57: Pricing rule creation now validates group_size_max against the
facility unit's max_capacity, preventing over-capacity rules.

TKT-46: Added audit log CSV export with all current filters applied.
New route GET /audit/export and export button in the filter bar.

TKT-55: Player registration member lookup now uses only the DB id
(set by AJAX member lookup) instead of ambiguous membership_number/id
fallback. National ID field locked when auto-filled from member record.

TKT-50: Fee breakdown text now shows base amount and development fee
separately (e.g. "اشتراك سنوي: 222.00 + تنمية: 35.00 = 257.00")
instead of just the combined total.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

The old calculator applied a flat percentage by position (oldest=10%, next=50%,
next=100%). The correct model: each year's penalty escalates based on how long
THAT SPECIFIC year has been overdue:
- Same year past grace (3 months): 10%
- 1 year overdue: 50%
- 2 years overdue: 100%
- 3 years overdue: 200%
- 4 years overdue: 300%
- 5+ years: membership dropped

Also adds:
- Grace period rule (SUB_GRACE_MONTHS = 3, extended = 4 with trustees approval)
- YEAR_4 (200%) and YEAR_5 (300%) rules in DB
- canReinstate() method for 12-month reinstatement window
- expireReinstatements() for permanent drop after window expires
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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>