Add database view consolidation and migrate legacy tables

- Drop 27 unused views, create 24 new purpose-built views
- New views cover: equipment, PCs, printers, notifications, applications,
  knowledge base, USB history, subnets, maps, and reports/charts
- Migration scripts for legacy network device tables (servers, cameras,
  switches, accesspoints, idfs) to unified machines table
- Migration scripts for legacy tables (machineoverrides, dualpathassignments,
  networkinterfaces)
- Update displaydevice.asp and displaylocationdevice.asp to use machines table
- Fix deviceserver.asp type mismatch error with HTMLEncode
- Hide Applications tab for equipment in displaymachine.asp

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

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

sql/migration_drop_legacy_tables.sql

@@ -0,0 +1,81 @@
+-- ============================================================================
+-- Migration: Drop Legacy Tables
+--
+-- This script removes unused legacy tables after data migration to unified
+-- tables (machinerelationships, communications).
+--
+-- Tables to drop:
+--   - machineoverrides (empty, functionality not used)
+--   - dualpathassignments (migrated to machinerelationships)
+--   - networkinterfaces (migrated to communications)
+--   - _backup_equipment_ips_phase1_5 (old migration backup)
+--
+-- IMPORTANT: Run this on DEV first and test thoroughly before production!
+-- ============================================================================
+
+-- ============================================================================
+-- STEP 1: Drop views that reference legacy tables
+-- ============================================================================
+
+DROP VIEW IF EXISTS vw_shopfloor_pcs;
+
+-- ============================================================================
+-- STEP 2: Drop FK constraints on legacy tables
+-- ============================================================================
+
+ALTER TABLE dualpathassignments DROP FOREIGN KEY fk_dualpathassignments_machines;
+ALTER TABLE machineoverrides DROP FOREIGN KEY fk_machineoverrides_machines;
+ALTER TABLE networkinterfaces DROP FOREIGN KEY fk_networkinterfaces_machines;
+
+-- ============================================================================
+-- STEP 3: Drop the legacy tables
+-- ============================================================================
+
+DROP TABLE IF EXISTS machineoverrides;
+DROP TABLE IF EXISTS dualpathassignments;
+DROP TABLE IF EXISTS networkinterfaces;
+DROP TABLE IF EXISTS _backup_equipment_ips_phase1_5;
+
+-- ============================================================================
+-- STEP 4: Recreate vw_shopfloor_pcs without machineoverrides reference
+-- ============================================================================
+
+CREATE VIEW vw_shopfloor_pcs AS
+SELECT
+    m.machineid,
+    m.hostname,
+    m.serialnumber,
+    v.vendor AS manufacturer,
+    md.modelnumber AS model,
+    m.loggedinuser,
+    m.machinenumber,
+    COALESCE(os.operatingsystem, 'Unknown') AS operatingsystem,
+    m.lastupdated,
+    m.lastboottime,
+    DATEDIFF(NOW(), m.lastboottime) AS uptime_days
+FROM machines m
+JOIN pctype pt ON m.pctypeid = pt.pctypeid
+LEFT JOIN models md ON m.modelnumberid = md.modelnumberid
+LEFT JOIN vendors v ON md.vendorid = v.vendorid
+LEFT JOIN operatingsystems os ON m.osid = os.osid
+WHERE pt.typename = 'Shopfloor'
+AND m.lastupdated > DATE_SUB(NOW(), INTERVAL 30 DAY)
+AND m.pctypeid IS NOT NULL
+ORDER BY m.machinenumber, m.hostname;
+
+-- ============================================================================
+-- STEP 5: Verify
+-- ============================================================================
+
+-- Should NOT show dropped tables
+SELECT 'Verifying tables are dropped:' AS status;
+SHOW TABLES LIKE 'machineoverrides';
+SHOW TABLES LIKE 'dualpathassignments';
+SHOW TABLES LIKE 'networkinterfaces';
+SHOW TABLES LIKE '_backup%';
+
+-- Verify view works
+SELECT 'Testing vw_shopfloor_pcs:' AS status;
+SELECT COUNT(*) AS shopfloor_pc_count FROM vw_shopfloor_pcs;
+
+SELECT 'Migration complete! Legacy tables have been dropped.' AS status;