feat(v4.3.0): Database Views — 10 types complets

- New view types: chart (Chart.js CDN), form (HTML form POST), map (Leaflet OSM), feed (chronological), gantt (timeline + groups)
- View tabs updated to show all 11 view types (table, board, calendar, gallery, list, timeline, gantt, chart, form, map, feed)
- Chart supports bar/line/pie/doughnut/scatter via config.chart_type
- Form auto-generates fields from collection properties (text/email/select/checkbox/date/number)
- Map renders location markers from property values (lat,lng pairs)
- Gantt supports group_by for categorized timeline bars
- 7 new tests (166 total)

tests/test_app.py

@@ -2375,3 +2375,80 @@ def test_dashboard_create_default_layout(client):
     layout = json.loads(dash["layout_json"])
     assert layout["columns"] == 1
     assert layout["widgets"] == []
+
+
+# ── v4.3.0: Database Views (10 types) ──
+
+
+def test_view_chart_renders(client):
+    """Chart view renders with Chart.js CDN."""
+    resp = client.post("/db/api", json={"name": "Chart DB"})
+    coll_id = resp.json()["id"]
+    client.post(f"/db/{coll_id}/pages/api", json={"title": "Item A", "properties": {"Count": "5"}})
+    client.post(f"/db/{coll_id}/pages/api", json={"title": "Item B", "properties": {"Count": "8"}})
+    resp = client.get(f"/db/{coll_id}/view/chart")
+    assert resp.status_code == 200
+    assert "chart.js" in resp.text
+
+
+def test_view_form_renders(client):
+    """Form view renders with input fields."""
+    resp = client.post("/db/api", json={"name": "Form DB"})
+    coll_id = resp.json()["id"]
+    client.post(f"/db/{coll_id}/properties/api", json={"name": "Email", "prop_type": "email"})
+    resp = client.get(f"/db/{coll_id}/view/form")
+    assert resp.status_code == 200
+    assert "<form" in resp.text
+    assert "Email" in resp.text
+
+
+def test_view_map_renders(client):
+    """Map view renders with Leaflet CDN."""
+    resp = client.post("/db/api", json={"name": "Map DB"})
+    coll_id = resp.json()["id"]
+    resp = client.get(f"/db/{coll_id}/view/map")
+    assert resp.status_code == 200
+    assert "leaflet" in resp.text.lower()
+
+
+def test_view_feed_renders(client):
+    """Feed view renders chronological entries."""
+    resp = client.post("/db/api", json={"name": "Feed DB"})
+    coll_id = resp.json()["id"]
+    client.post(f"/db/{coll_id}/pages/api", json={"title": "Latest post"})
+    resp = client.get(f"/db/{coll_id}/view/feed")
+    assert resp.status_code == 200
+    assert "Latest post" in resp.text
+
+
+def test_view_gantt_renders(client):
+    """Gantt view renders with date bars."""
+    resp = client.post("/db/api", json={"name": "Gantt DB"})
+    coll_id = resp.json()["id"]
+    client.post(f"/db/{coll_id}/pages/api", json={
+        "title": "Task 1",
+        "properties": {"Timeline": "2026-07-01...2026-07-15"},
+    })
+    resp = client.get(f"/db/{coll_id}/view/gantt")
+    assert resp.status_code == 200
+    assert "Task 1" in resp.text
+    assert "gantt-bar" in resp.text
+
+
+def test_all_view_tabs_present(client):
+    """All 11 view tabs are present in the base HTML."""
+    resp = client.post("/db/api", json={"name": "Tabs DB"})
+    coll_id = resp.json()["id"]
+    resp = client.get(f"/db/{coll_id}/view/table")
+    assert resp.status_code == 200
+    for vt in ["table", "board", "calendar", "gallery", "list", "timeline", "gantt", "chart", "form", "map", "feed"]:
+        assert f"?view={vt}" in resp.text, f"Missing view tab: {vt}"
+
+
+def test_view_unknown_falls_back_to_table(client):
+    """Unknown view type falls back to table view."""
+    resp = client.post("/db/api", json={"name": "Fallback DB"})
+    coll_id = resp.json()["id"]
+    resp = client.get(f"/db/{coll_id}/view/unknown_view_type")
+    assert resp.status_code == 200
+    assert "<table>" in resp.text