feat(3 U5.1+U5.2): per-recipe latest-level badge endpoint /badge/<recipe>.svg (R6, level-coloured, status fallback) + complete docs/results-ux.md §3-5 (card/screenshot/PR-comment/badge-embedding, R8); +2 badge unit tests

tests/unit/test_dashboard.py

@@ -108,6 +108,22 @@ def test_build_row_degrades_without_results(monkeypatch):
     assert "level —" in dashboard.render_overview([r])
 
 
+def test_level_badge_shows_level_coloured(monkeypatch):
+    svg = dashboard.render_level_badge("custom-html", 4)
+    assert "custom-html" in svg and "level 4" in svg
+    assert dashboard.level_color(4) in svg          # coloured by level
+    assert svg.startswith("<svg") and "image" not in svg  # plain SVG
+    # A higher displayed level than earned would be inflation — badge shows exactly the given level.
+    assert "level 5" not in svg and "level 6" not in svg
+
+
+def test_status_badge_fallback_when_no_level():
+    # Recipe with no results.json level → status badge, not a fabricated level.
+    svg = dashboard.render_badge("ghost", "failure")
+    assert "failure" in svg and "level" not in svg
+    assert dashboard._COLORS["failure"] in svg
+
+
 def test_results_for_traversal_guarded():
     with tempfile.TemporaryDirectory() as d:
         os.makedirs(os.path.join(d, "5"))