Initial commit: aplicatie de cantarire si etichetare

Aplicatie Flask + SQLite pentru productie alimentara: cantarirea
componentelor unui produs finit si tiparirea etichetei prin QZ Tray.

- produse finite (retete) formate din componente cantarite
- designer vizual de etichete (mm/px, zona sigura, campuri variabile,
  cod QR cu continut din mai multe bucati)
- legare produs finit -> sablon de eticheta
- navigare pe doua taburi: Cantarire / Setari
- administrare: componente, produse finite, sabloane, campuri, istoric
- backup, resetare baza de date, checklist de pregatire, /healthz
- CLI de administrare si serviciu systemd pentru productie
- vendor/syncpulse-scale-bridge (GPL-3.0-or-later) pentru citirea cantarului

tests/test_navigation.py

@@ -0,0 +1,70 @@
+"""Navigatia: doua taburi principale (Cantarire, Setari) si subnavigatia de administrare."""
+from __future__ import annotations
+
+MAIN_TABS = ("Cântărire", "Setări")
+
+ADMIN_LINKS = (
+    ("/componente", "Componente"),
+    ("/retete", "Produse finite"),
+    ("/sabloane", "Șabloane"),
+    ("/campuri", "Câmpuri"),
+    ("/istoric", "Istoric"),
+    ("/monitor", "Monitor serial"),
+)
+
+
+def _html(client, path):
+    return client.get(path).get_data(as_text=True)
+
+
+def _flat(html: str) -> str:
+    """Colapseaza spatiile, ca sa nu depinda de indentarea Jinja."""
+    return " ".join(html.split())
+
+
+def test_dashboard_has_only_two_main_tabs(client):
+    html = _html(client, "/")
+    assert 'class="nav"' in html
+    for label in MAIN_TABS:
+        assert f">{label}</a>" in _flat(html)
+
+    # sectiunile de administrare nu mai sunt in bara principala
+    nav = _flat(html).split('class="nav"', 1)[1].split("</nav>", 1)[0]
+    for _href, label in ADMIN_LINKS:
+        assert f">{label}</a>" not in nav
+
+    # dashboard-ul nu arata subnavigatia
+    assert 'class="subnav"' not in html
+
+
+def test_settings_page_is_hub_and_shows_subnav(client):
+    html = _html(client, "/setari")
+    flat = _flat(html)
+    assert 'class="subnav"' in html
+    # cardurile din hub
+    assert 'class="hub-grid"' in html
+    for href, label in ADMIN_LINKS:
+        assert f'href="{href}"' in flat
+        assert label in flat
+
+    # ambele taburi principale sunt prezente, Setari e activ
+    for label in MAIN_TABS:
+        assert f">{label}</a>" in flat
+    assert 'class="active">Setări</a>' in flat
+
+
+def test_admin_pages_keep_subnav_and_mark_active(client):
+    for path, label in ADMIN_LINKS:
+        html = _flat(_html(client, path))
+        assert 'class="subnav"' in html, path
+        assert f'class="active">{label}</a>' in html, path
+
+
+def test_designer_page_is_under_templates_tab(client):
+    response = client.post("/sabloane/designer/nou", data={"name": "Nav test"},
+                           follow_redirects=True)
+    flat = _flat(response.get_data(as_text=True))
+    assert 'class="subnav"' in flat
+    assert 'class="active">Șabloane</a>' in flat
+    # "Cantarire" nu e activ aici
+    assert 'class="active">Cântărire</a>' not in flat