feat: port stroy-bot-project-assigner as resources page

Add the "resources" section (?page=resources&projectId=): professions and
companies assigned to a project, with the same lists, fields, texts and
optimistic add/remove with rollback as the legacy web part.

PnPjs is replaced by SharePoint REST through the app's IHttpClient so the
bundle needs no new dependency: the same $select/$expand/$filter, PnP paging
replaced by following odata.nextLink, adds as POST to items with the same
body, deletes as POST with X-HTTP-Method DELETE and IF-MATCH *. Known legacy
edge cases (temporary negative id) are kept and listed in the checklist.

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

src/webparts/stroyBot/pages/resources/AssignedPanel.tsx

@@ -0,0 +1,34 @@
+import * as React from 'react';
+import { Button } from '@tnsu/ui-kit';
+import { IAssignedResource } from './resourcesTypes';
+import { RESOURCES_TEXTS } from './texts';
+import styles from './ResourcesPage.module.scss';
+
+const TEXTS = RESOURCES_TEXTS.assigned;
+
+interface Props {
+  items: IAssignedResource[];
+  onRemove: (itemId: number) => void;
+}
+
+/** Правая колонка «Привязаны к проекту». */
+export const AssignedPanel: React.FC<Props> = ({ items, onRemove }) => (
+  <div className={styles.panelColumn}>
+    <div className={styles.panelTitle}>{TEXTS.title}</div>
+    {items.length === 0 && <div className={styles.emptyMsg}>{TEXTS.empty}</div>}
+    {items.map((item) => (
+      <div key={item.id} className={styles.itemRow}>
+        <span className={styles.itemName}>{item.title}</span>
+        <Button
+          variant="danger"
+          size="sm"
+          title={TEXTS.remove}
+          aria-label={TEXTS.remove}
+          onClick={() => onRemove(item.id)}
+        >
+          −
+        </Button>
+      </div>
+    ))}
+  </div>
+);