refactor: improve source selection and sidecar connection management #4554
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Summary
This PR improves the source selection UX and refactors sidecar connection management for better reliability. It is a result of debugging issue #4537, to isolate the problem.
Changes
New Features
SidecarConnectionManagerclass: Centralizes sidecar process connection management with proper state handlingImprovements
CONNECTING,CONNECTED,FAILED,DISCONNECTED)File.pathtype issue in drag-and-drop handlerCode Quality
File.pathTypeScript issue)Files Changed
lib/gui/app/modules/sidecar-connection.ts(new)lib/gui/app/components/source-selector/source-selector.tsxlib/gui/app/models/selection-state.tslib/gui/app/models/store.tslib/gui/app/modules/api.tslib/gui/app/pages/main/MainPage.tsxlib/gui/app/app.tslib/util/api.tsTesting