Release 3.0.3

• chore: remove Prettier configuration and update formatting scripts (7f22294)
• build: switch to vite plus (ba38dd5)
• feat: sync geojson features by id (1633e3d)
• docs: evaluate grid layer scope (1b458db)
• docs: add plugin extension template (96d3ad2)
• chore: add dist verification script (8c42250)
• docs: add release notes workflow (3d36141)
• chore: add prettier formatting (4372bce)
• ci: add test and build workflow (37f51ba)
• docs: add component reference (329bc90)
• feat: update layer options reactively (c28ad0e)
• feat: wire leaflet events to Vue listeners (4c46910)
• test: cover custom control slot cleanup (b6b7095)
• test: cover overlay component lifecycle (42e58eb)
• test: cover existing layer cleanup (269c9c6)
• docs: mark completed todo items (653d466)
• feat: add pane docs and component tests (64b3417)
• feat: add leaflet layer containers and overlays (31dfb86)
• docs: plan leaflet component roadmap (e40c16d)
• test: upgrade dependencies and add coverage (f7eaf5d)