refactor: AOI tool to monorepo pattern + event triggered panel

[BhattaraiSijan]

Purpose

Refactor the AOI (Area of Interest) tool to the monorepo tool pattern — a portable lib/ of presentational React components with all MMGIS coupling isolated in adapters/ — and make the selection panel open on demand from the Title plugin instead of showing eagerly. No change to the tool's capabilities (search / inspect / draw / upload / analyze).

Proposed Changes

• [CHANGE] Restructure AOI into the standard layout: portable lib/geo/* components + lib/styles/components-geo/*, MMGIS glue in adapters/, state + bus wiring in MMGISAOIAdapter.tsx, thin AOITool.tsx mount wrapper, and a metadata block in config.json.
• [CHANGE] Port the legacy AOITool.js to React 19 createRoot + TypeScript; migrate styling to BEM (blocks-aoi-*) with USWDS --theme-* design tokens (Path A theming).
• [CHANGE] Route all map/plugin messaging through the shared _shared/adapters/mmgisAPI (no tool-local bus copy); split pure helpers into adapters/{search,parse,geometry,slug}.ts.
• [ADD] Event-gated panel: AOI stays hidden until the Title plugin emits plugin:title:analyzeAreaBtnClicked (OPEN_PANEL_CHANNEL); the adapter stays mounted and listening while hidden. The in-tooltip "Analyze area" → statistics trigger is unchanged.
• [FIX] Remove the legacy react-dom render/unmountComponentAtNode path (incompatible with React 19) along with the old AOIComponent/ and AOITool.js.

Issues

• Refractor AOI plugin to use reusable component monorepo pattern
  

Testing

• npm run typecheck → 0 errors.
• Manual smoke test via console: window.mmgisAPI.emit('plugin:title:analyzeAreaBtnClicked') reveals the panel; all four modes (search / inspect / draw / upload), selection → tooltip → analyze, and fit-bounds verified in browser.