Fix bugs: endpoint selection, optional params, localStorage persistence

Fix bugs: endpoint selection, optional params, localStorage persistence

Fix click-to-add: use onadd callback from canvas

Fix click-to-add: use onadd callback from canvas

Click sidebar chips to add to canvas

Collapse extra input params behind toggle

Use Space's default endpoint: unnamed[0] > /predict > heuristic

Fix endpoint selection: skip event handlers, prefer rich outputs

Move login button into toolbar

Add src/frontend/workflow/workflow-to-space.ts

Add src/frontend/workflow/WorkflowEdges.svelte

Add src/frontend/workflow/workflow-types.ts

Add src/frontend/workflow/workflow-store.ts

Add src/frontend/tsconfig.json

Add src/frontend/gradio.config.js

Add src/frontend/workflow/space-api.ts

Add src/frontend/workflow/workflow-executor.ts

Add src/frontend/workflow/node-library.ts

Add src/frontend/workflow/WorkflowSidebar.svelte

Add src/frontend/workflow/WorkflowNode.svelte

Add src/frontend/workflow/WorkflowCanvas.svelte

Add src/frontend/package-lock.json

Add src/frontend/package.json

Add src/frontend/Index.svelte