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/features/tgu-planning/TguToolbar.tsx

@@ -1,12 +1,13 @@
 import { TguLegend } from "./TguLegend";
+import type { TguActiveTab } from "../../model/timelineTypes";
 
 type TguToolbarProps = {
   fromValue: string;
   toValue: string;
   loading: boolean;
-  activeTab: "timeline" | "map";
+  activeTab: TguActiveTab;
   error?: string;
-  onTabChange: (tab: "timeline" | "map") => void;
+  onTabChange: (tab: TguActiveTab) => void;
   onFromChange: (value: string) => void;
   onToChange: (value: string) => void;
   onApply: () => void;
@@ -57,6 +58,15 @@ export function TguToolbar({
           >
             Карта 2D
           </button>
+          <button
+            className={activeTab === "editor" ? "is-active" : ""}
+            type="button"
+            role="tab"
+            aria-selected={activeTab === "editor"}
+            onClick={() => onTabChange("editor")}
+          >
+            Редактор
+          </button>
         </div>
 
         <label className="tgu-field">