- [x] Implement resource subtraction, maintenance payment, and project discarding in `resumen.php`
  - [x] Add `parseMantenimiento` helper function
  - [x] Add `pagarMantenimientoProyecto` function
  - [x] Add `desecharProyecto` function with accumulated general check
  - [x] Modify `crearTarjetaProyecto` to show action buttons on active projects at end of trimester
  - [x] Filter paid projects in `actualizarResumenUI`
  - [x] Bind event delegation for the buttons
- [x] Implement board rendering updates in `jsCode.js`
  - [x] Define `limpiaProyectoGrande` function
  - [x] Filter `proyectosEnTablero` in `continuamos` based on `mantenimientoPagadoEnTrimestre`
  - [x] Adjust project grande loading in `continuamos` to respect maintenance payment
- [x] Verify functionality
  - [x] Test paying maintenance
  - [x] Test discarding project with check for sufficient accumulated funds
  - [x] Test quincena transitions
