v1.5.6: boneyard-js skeleton migration, TanStack Query refactor, rate-limit config

- Replace hand-coded skeleton CSS/JSX with boneyard-js auto-generated bones
- Remove skeleton.css and @keyframes shimmer from base.css
- Add <Skeleton> wrappers with fixtures to all 25+ page components
- Generate 20 bone captures via boneyard CLI (CDP auth-gated capture)
- Refactor data fetching from useEffect+useState to TanStack Query
- Extract query hooks into src/admin/lib/queries/ and apiAdapter
- Add usePaginatedQuery hook replacing useApiCall/useListData
- Fix parseFloat || 0 anti-pattern in OfferDetail and OffersTemplates inputs
- Fix customer_id mandatory validation on offer creation
- Fix leave-requests comma-separated status filter (Prisma enum in: [])
- Add cross-entity cache invalidation for orders/offers/invoices/projects
- Make rate limits configurable via env vars (RATE_LIMIT_MAX, RATE_LIMIT_REFRESH, etc.)
- Add boneyard.config.json with routes and breakpoints

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/admin/fixtures/CompanySettingsFixture.tsx

@@ -0,0 +1,69 @@
+export default function CompanySettingsFixture() {
+  return (
+    <div>
+      <div className="admin-page-header">
+        <div>
+          <h1 className="admin-page-title">Nastavení firmy</h1>
+          <p className="admin-page-subtitle">Firemní údaje a bankovní účty</p>
+        </div>
+        <button className="admin-btn admin-btn-primary">
+          Uložit nastavení
+        </button>
+      </div>
+      <div className="admin-settings-grid">
+        <div className="admin-card">
+          <div className="admin-card-header">
+            <h3 className="admin-card-title">Firemní údaje</h3>
+          </div>
+          <div className="admin-card-body">
+            <div className="admin-form">
+              <label className="admin-form-label">Název firmy</label>
+              <input
+                className="admin-form-input"
+                readOnly
+                value="BOHA s.r.o."
+              />
+              <div className="admin-form-row">
+                <label className="admin-form-label">Ulice</label>
+                <input
+                  className="admin-form-input"
+                  readOnly
+                  value="Hlavní 123"
+                />
+                <label className="admin-form-label">Město</label>
+                <input className="admin-form-input" readOnly value="Praha" />
+              </div>
+            </div>
+          </div>
+        </div>
+        <div className="admin-card">
+          <div className="admin-card-header">
+            <h3 className="admin-card-title">Bankovní účty</h3>
+          </div>
+          <div className="admin-card-body">
+            <div className="admin-table-responsive">
+              <table className="admin-table">
+                <thead>
+                  <tr>
+                    <th>Název</th>
+                    <th>Banka</th>
+                    <th>Číslo účtu</th>
+                    <th>Měna</th>
+                  </tr>
+                </thead>
+                <tbody>
+                  <tr>
+                    <td>Hlavní účet</td>
+                    <td>ČSOB</td>
+                    <td className="admin-mono">123456/0300</td>
+                    <td>CZK</td>
+                  </tr>
+                </tbody>
+              </table>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}