Clean up development artifacts and obsolete code

Dependencies:
- Remove unused bcrypt package (only bcryptjs is used)
- Remove @types/bcrypt (only @types/bcryptjs needed)

Scripts cleanup:
- Delete migration scripts (one-time use, already applied):
  - add-mqtt-tables.js
  - add-parent-user-column.js
  - migrate-device-ownership.js
  - fix-acl-topic-patterns.js
  - update-acl-permission.js
- Delete personal test/debug scripts:
  - reset-joachim-password.js
  - test-joachim-password.js
  - check-admin.js
  - check-user-password.js
  - test-password.js
  - test-device-access.js
  - test-user-visibility.js
- Move change-mqtt-admin-password.sh to scripts/ directory

Code cleanup:
- Remove debug console.log statements from:
  - app/api/locations/ingest/route.ts
  - components/map/MapView.tsx (2 debug logs)
  - lib/db.ts

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

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

lib/db.ts

@@ -376,15 +376,6 @@ export const locationDb = {
         const batteryValue = loc.battery !== undefined && loc.battery !== null ? Number(loc.battery) : null;
         const speedValue = loc.speed !== undefined && loc.speed !== null ? Number(loc.speed) : null;
 
-        // Debug log
-        console.log('[DB Insert Debug]', {
-          username: loc.username,
-          speed_in: loc.speed,
-          speed_out: speedValue,
-          battery_in: loc.battery,
-          battery_out: batteryValue
-        });
-
         const result = stmt.run(
           loc.latitude,
           loc.longitude,