Clean up sql directory after production sync

- Remove 27 completed one-off migration scripts
- Remove old backup file (dev-backup-20251120)
- Remove completed shell scripts for prod import/export
- Archive migration_phase1-4 directories and documentation
- Keep only view_consolidation.sql as active script

All migrations have been applied to production.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

sql/archive/migration_phase2/04_migrate_warranties.sql

@@ -0,0 +1,164 @@
+-- =====================================================
+-- SCRIPT 04: Migrate PC Warranty Data
+-- =====================================================
+-- Date: 2025-11-06
+-- Purpose: Migrate PC warranty data to warranties table
+-- Status: REQUIRES TESTING - Depends on Script 01
+-- Estimated Time: 2-3 minutes
+-- =====================================================
+
+USE shopdb;
+SET SQL_SAFE_UPDATES = 0;
+
+-- =====================================================
+-- STEP 1: Pre-migration checks
+-- =====================================================
+
+SELECT '========================================' AS '';
+SELECT 'WARRANTY DATA MIGRATION' AS '';
+SELECT '========================================' AS '';
+SELECT '' AS '';
+
+-- Count PCs with warranty data
+SELECT CONCAT('PCs with warranty end dates: ', COUNT(*)) AS info
+FROM pc
+WHERE warrantyenddate IS NOT NULL
+  AND isactive = 1;
+
+-- Show warranty status distribution
+SELECT 'Warranty status distribution:' AS '';
+SELECT
+    CASE
+        WHEN warrantyenddate IS NULL THEN 'No warranty data'
+        WHEN warrantyenddate < CURDATE() THEN 'Expired'
+        WHEN warrantyenddate < DATE_ADD(CURDATE(), INTERVAL 90 DAY) THEN 'Expiring soon'
+        ELSE 'Active'
+    END AS status,
+    COUNT(*) as count
+FROM pc
+WHERE isactive = 1
+GROUP BY status
+ORDER BY count DESC;
+
+SELECT '' AS '';
+
+-- =====================================================
+-- STEP 2: Show sample data
+-- =====================================================
+
+SELECT 'Sample warranty data (first 5):' AS '';
+SELECT
+    p.pcid,
+    p.hostname,
+    m.new_machineid,
+    p.warrantyenddate,
+    p.warrantyservicelevel,
+    p.warrantylastchecked
+FROM pc p
+LEFT JOIN pc_to_machine_id_mapping m ON p.pcid = m.pcid
+WHERE p.warrantyenddate IS NOT NULL
+  AND p.isactive = 1
+LIMIT 5;
+
+SELECT '' AS '';
+
+-- =====================================================
+-- STEP 3: Migrate warranty data
+-- =====================================================
+
+SELECT 'Migrating warranty data...' AS '';
+
+INSERT INTO warranties (
+    machineid,
+    warrantyname,
+    enddate,
+    servicelevel,
+    lastcheckeddate
+)
+SELECT
+    m.new_machineid,
+    NULL AS warrantyname,           -- Not in old PC table, set to NULL
+    p.warrantyenddate AS enddate,
+    p.warrantyservicelevel AS servicelevel,
+    p.warrantylastchecked AS lastcheckeddate
+FROM pc p
+JOIN pc_to_machine_id_mapping m ON p.pcid = m.pcid
+WHERE p.warrantyenddate IS NOT NULL  -- Only migrate if warranty date exists
+  AND p.isactive = 1
+  AND m.new_machineid IS NOT NULL;
+
+SELECT CONCAT('✓ Migrated ', ROW_COUNT(), ' warranty records') AS status;
+
+SELECT '' AS '';
+
+-- =====================================================
+-- VERIFICATION
+-- =====================================================
+
+SELECT '========================================' AS '';
+SELECT 'MIGRATION VERIFICATION' AS '';
+SELECT '========================================' AS '';
+SELECT '' AS '';
+
+-- Count warranties
+SELECT CONCAT('Total warranty records: ', COUNT(*)) AS info
+FROM warranties;
+
+-- Warranty status using view
+SELECT 'Warranty status summary:' AS '';
+SELECT
+    warrantystatus,
+    COUNT(*) as count
+FROM vw_warranty_status
+WHERE machineid IN (SELECT new_machineid FROM pc_to_machine_id_mapping)
+GROUP BY warrantystatus
+ORDER BY count DESC;
+
+SELECT '' AS '';
+
+-- Sample migrated warranties
+SELECT 'Sample migrated warranties:' AS '';
+SELECT
+    w.warrantyid,
+    m.hostname,
+    w.enddate,
+    w.servicelevel,
+    DATEDIFF(w.enddate, CURDATE()) as days_remaining
+FROM warranties w
+JOIN machines m ON w.machineid = m.machineid
+WHERE m.pctypeid IS NOT NULL
+LIMIT 5;
+
+SELECT '' AS '';
+
+-- Expiring warranties
+SELECT 'Warranties expiring in next 90 days:' AS '';
+SELECT COUNT(*) as count
+FROM vw_warranties_expiring
+WHERE machineid IN (SELECT new_machineid FROM pc_to_machine_id_mapping);
+
+SELECT '' AS '';
+
+SELECT '✓ Script 04 completed successfully' AS status;
+SELECT 'Next: Run script 05_migrate_dualpath_assignments.sql' AS '';
+
+SET SQL_SAFE_UPDATES = 1;
+
+-- =====================================================
+-- NOTES
+-- =====================================================
+-- Migrated fields from pc table:
+-- - warrantyenddate → warranties.enddate
+-- - warrantyservicelevel → warranties.servicelevel
+-- - warrantylastchecked → warranties.lastcheckeddate
+-- - warrantyname → NULL (not in old schema)
+--
+-- Computed fields (not stored):
+-- - warrantystatus (computed in vw_warranty_status view)
+-- - warrantydaysremaining (computed in vw_warranty_status view)
+--
+-- Only migrated PCs with warrantyenddate NOT NULL
+--
+-- ROLLBACK: DELETE FROM warranties WHERE machineid IN
+--           (SELECT new_machineid FROM pc_to_machine_id_mapping)
+-- =====================================================