feat: add StroyBot app shell with URL routing

One web part replaces the separate stroy-bot-* web parts. The section and
its parameters live in the page query string (?page=objects&projectId=5),
so links can be copied, opened in a new tab and the browser Back button works.

- shared config: site/Dataverse/API addresses, list and table names
- HTTP layer behind IHttpClient so repositories can be unit-tested
- ui-kit AppLayout + Sidebar, placeholder for sections not ported yet
- migration checklist with every feature of the old web parts
- design tokens mirrored from ui-kit instead of 8 copies

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/webparts/stroyBot/app/routing/routes.test.ts

@@ -0,0 +1,20 @@
+import { parseRoute, buildSearch } from './routes';
+
+describe('parseRoute', () => {
+  it('пустой адрес - главная', () => {
+    expect(parseRoute('')).toEqual({ page: 'hub' });
+  });
+  it('адрес с разделом works, проектом 3 и объектом 41', () => {
+    expect(parseRoute('?page=works&projectId=3&objectId=41')).toEqual({
+      page: 'works',
+      projectId: '3',
+      objectId: '41'
+    });
+  });
+  it('опечатка в разделе (objectz) — должна быть главная, а projectId сохраниться', () => {
+    expect(parseRoute('?page=objectz&projectId=3')).toEqual({ page: 'hub', projectId: '3' });
+  });
+  it('адрес только с projectId=7', () => {
+    expect(parseRoute('?projectId=7')).toEqual({ page: 'hub', projectId: '7' });
+  });
+});