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Removed 12 standalone sidebar entries that belong under Membership or
Sports Activity. They remain accessible via "related sections" links
on the parent section pages and via direct URL.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- TKT-003: Fix facility create view accessing array as object ($disc->id → $disc['id'])
- TKT-004: Disable autoTrackAuthor on FacilityUnit model (table lacks updated_by column)
- TKT-004: Fix facility edit view same array-as-object bug
- TKT-005: Add national_id validation in coach registration (reject invalid IDs)
- TKT-006: Skip NID validation for member-type players, auto-fill from member record
- TKT-007: Fix program edit form action URL (/update suffix removed to match route)
- TKT-008: Add season start/end date validation in group store and update
- TKT-009: Catch duplicate schedule entry PDOException gracefully (skip duplicates)
- TKT-010/011: Add "Generate Training Sessions" button+route to group show page
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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

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

- Members paying via installments (down_payment) now enter 'pending_cheques'
  status instead of being immediately activated
- Membership number is only assigned after ALL cheques are uploaded
  (1 cheque per installment month)
- Dependents (spouses/children) are NOT auto-included in installment
  payments — they must pay addition_fee separately
- New installment_cheques table stores serial, bank, date, scan file
- New ChequeController + ChequeService for upload flow
- Employee uploads cheque scans from installment plan page
- Member show page displays pending_cheques banner with upload link
- Auto-activates member once all required cheques are submitted
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Added all tutorial module children to sidebar menu (was only 2, now 28)
- Added 60px bottom padding to sidebar-nav to prevent debug bar overlap
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Pool is now a real 2D grid (rows × cols = squares). Admin sets dimensions,
selects time slot from timeline strip above, then assigns squares to
academies/groups/hourly/blocked/maintenance via drag selection.

- New table: sa_pool_zone_bookings (zone_row × zone_col per time slot)
- ALTER sa_facilities: add pool_grid_rows, pool_grid_cols
- Rewritten PoolGridService with zone-based logic + copy-slot feature
- Interactive view: timeline strip, 2D grid with drag/click/shift-rect select
- API: state, assign, clear, update-grid, copy-slot
- Seed: 4×6 grid with sample zone bookings
- Fix mirror route mismatch (/sa/mirror/{id} now works)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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

Lanes × time slots grid with drag selection, bulk assign (training/blocked/maintenance),
bulk clear, date navigation, and real-time AJAX state loading.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Seeds: discipline, facility (8 lanes), time brackets (5), pricing rules
(80 rules across all lanes × brackets × group sizes), 4 coaches,
4 programs, 6 training groups with weekly schedules, 20 players
enrolled across groups, training bookings for current week, hourly
bookings, and a maintenance blackout date.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Column fixes across 13 controllers/models/views:
- sa_coaches: name_ar → full_name_ar, status → is_active
- sa_players: serial_number → registration_serial, code → registration_serial
- sa_facility_units: removed non-existent is_archived references
- sa_player_documents: title → file_name, original_name → file_name, uploaded_by → created_by
- sa_blackout_dates: wrong table name sa_facility_blackouts → sa_blackout_dates
- sa_disciplines: wrong table name disciplines → sa_disciplines
- sa_attendance: added missing attendance_date, removed non-existent recorded_at
- sa_player_documents: document_type medical → medical_cert, status → approval_status
- card_status: not_issued → inactive, expired → revoked
- player_type: removed invalid academy_player
- academy_type: removed invalid partnership
- gender_restriction: store NULL instead of 'mixed'
- Added missing [] params to $db->select() calls

Membership tutorials: 25 tutorial files covering all membership operations.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>