feat: Add helpers for fetching and processing raw IMGW meteorological data and update station metadata.

fix: Update plot container column class from `col-xl-6` to `col-lg-6` for all plots.

refactor: Add `isolate` to reactive inputs in `broadcast_state` and conditionally call `resolution_key` in `build_station_popup`.

feat: Distinguish between no files found and unreachable servers in file listings, and improve robustness of URL parameter generation.

Fix: url_initialized blocking data fetch when clientData not ready

Add postMessage state sync to parent for URL reflection

chore: Increase initial map and home button zoom level to 5.5.

feat: Set initial map zoom to 5 and update 'zoom home' to fly to a fixed national view.

feat: implement client-side Plotly render waiting before unfreezing UI.

feat: Replace `reset_fetch()` with granular state resets and add UI freezing/unfreezing around plot rendering.

feat: Implement server-side station search and refactor plotting logic into dedicated functions with dynamic plot rendering and extended monthly data limits.

feat: Implement asynchronous data fetching, add date range limits with auto-adjustment, and update column prefix stripping.

feat: Introduce WMO weather code dictionary, enhance data processing with new parameters and improved column renaming, and add display translations for precipitation and status codes.

feat: Combine data quality flags with values for improved display, hide empty columns in tables, and remove minute parsing from hourly data.

Refactor station metadata loading to use pre-generated CSV with regeneration logic, and update map tile sources.

feat: Create initial IMGW Explorer Shiny application, including data parsing, UI, server logic, styling, and Docker setup.