Test dashboard: full menu system, all-service tests, filtering

- Run tests for all 10 services via per-service pytest subprocesses
- Group results by service with section headers
- Clickable summary cards filter by outcome (passed/failed/errors/skipped)
- Service filter nav using ~nav-link buttons in menu bar
- Full menu integration: ~header-row + ~header-child + ~menu-row
- Show logo image via cart-mini rendering
- Mount full service directories in docker-compose for test access
- Add 24 unit test files across 9 services

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

market/tests/test_slugs.py

@@ -0,0 +1,45 @@
+"""Unit tests for market slug helpers."""
+from __future__ import annotations
+
+import pytest
+
+from market.bp.browse.services.slugs import (
+    product_slug_from_href, canonical_html_slug,
+)
+
+
+class TestProductSlugFromHref:
+    def test_html_extension(self):
+        result = product_slug_from_href("https://site.com/foo/bar-thing.html")
+        assert result == "bar-thing-html"
+
+    def test_htm_extension(self):
+        result = product_slug_from_href("https://site.com/products/widget.htm")
+        assert result == "widget-html"
+
+    def test_no_extension(self):
+        result = product_slug_from_href("https://site.com/item/cool-product")
+        assert result == "cool-product-html"
+
+    def test_empty_path(self):
+        result = product_slug_from_href("https://site.com/")
+        assert result == ""
+
+    def test_already_has_html_suffix_in_slug(self):
+        result = product_slug_from_href("https://site.com/prod/item-html.html")
+        assert result == "item-html"
+
+
+class TestCanonicalHtmlSlug:
+    def test_adds_html_suffix(self):
+        assert canonical_html_slug("product-name") == "product-name-html"
+
+    def test_idempotent(self):
+        assert canonical_html_slug("product-name-html") == "product-name-html"
+
+    def test_double_html_kept(self):
+        # canonical_html_slug only appends -html if not already present
+        assert canonical_html_slug("product-name-html-html") == "product-name-html-html"
+
+    def test_strips_htm(self):
+        assert canonical_html_slug("product-name-htm") == "product-name-html"