feat(tgu-ops-ui): add spacecraft work editor tab

Port the TGU editor prototype into pcp-tgu-ops-ui as a new editor tab, add draft/conflict/pass logic with tests, extend the 2D map picking API, and include editor styles/theme aliases and task/prototype docs.

Validation: npm run test; npm run build in services/pcp-tgu-ops-ui.

services/pcp-tgu-ops-ui/src/main.tsx

@@ -2,7 +2,9 @@ import { StrictMode } from "react";
 import { createRoot } from "react-dom/client";
 import App from "./App";
 import "./styles/theme.css";
+import "./styles/editor-tokens.css";
 import "./styles/tgu-planning.css";
+import "./styles/tgu-editor.css";
 
 createRoot(document.getElementById("root")!).render(
   <StrictMode>