Use configured version in Contracts homepage

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

site/templates/index.html

@@ -93,7 +93,7 @@
 <body>
 <div class="topbar">
   <img src="/static/logo.svg" alt="Nubes">
-  <span class="title">Сверка договоров — LLM AI-driven Event Sourcing <span style="font-weight:400;color:var(--muted);font-size:12px;">v2.0.21</span></span>
+  <span class="title">Сверка договоров — LLM AI-driven Event Sourcing <span style="font-weight:400;color:var(--muted);font-size:12px;">v{{ config["VERSION"] }}</span></span>
   <div id="pipelineStepper" style="display:flex;gap:8px;font-size:11px;align-items:center;color:var(--muted);">
     <span id="stepUpload">○ Загрузка</span><span>→</span>
     <span id="stepClassify">○ Классификация</span><span>→</span>
@@ -227,12 +227,12 @@
   </div>
 </div>
 
-<script src="/file-picker/file-picker.iife.js"></script>
+<script src="/file-picker/file-picker.iife.js?v={{ config['VERSION'] }}"></script>
-<script src="/static/state.js?v=2.0.21"></script>
+<script src="/static/state.js?v={{ config['VERSION'] }}"></script>
-<script src="/static/app_utils.js?v=2.0.21"></script>
+<script src="/static/app_utils.js?v={{ config['VERSION'] }}"></script>
-<script src="/static/files.js?v=2.0.21"></script>
+<script src="/static/files.js?v={{ config['VERSION'] }}"></script>
-<script src="/static/groups.js?v=2.0.21"></script>
+<script src="/static/groups.js?v={{ config['VERSION'] }}"></script>
-<script src="/static/compare.js?v=2.0.21"></script>
+<script src="/static/compare.js?v={{ config['VERSION'] }}"></script>
-<script src="/static/app.js?v=2.0.21"></script>
+<script src="/static/app.js?v={{ config['VERSION'] }}"></script>
 </body>
 </html>

tests/test_routes.py

@@ -29,6 +29,18 @@ class TestHealth:
         assert data["version"] == VERSION
 
 
+class TestHomepage:
+    def test_version_and_asset_urls_use_application_version(self, client):
+        from config import VERSION
+
+        response = client.get("/")
+        assert response.status_code == 200
+        html = response.get_data(as_text=True)
+        assert f">v{VERSION}</span>" in html
+        assert f"/static/files.js?v={VERSION}" in html
+        assert f"/file-picker/file-picker.iife.js?v={VERSION}" in html
+
+
 class TestSpecCurrent:
     def test_missing_contract_id(self, client):
         r = client.get("/api/spec-current")