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>

blog/tests/test_slugify.py

@@ -0,0 +1,50 @@
+"""Unit tests for blog slugify utility."""
+from __future__ import annotations
+
+import pytest
+
+from blog.bp.post.services.markets import slugify
+
+
+class TestSlugify:
+    def test_basic_ascii(self):
+        assert slugify("Hello World") == "hello-world"
+
+    def test_unicode_stripped(self):
+        assert slugify("café") == "cafe"
+
+    def test_slashes_to_dashes(self):
+        assert slugify("foo/bar") == "foo-bar"
+
+    def test_special_chars(self):
+        assert slugify("foo!!bar") == "foo-bar"
+
+    def test_multiple_dashes_collapsed(self):
+        assert slugify("foo---bar") == "foo-bar"
+
+    def test_leading_trailing_dashes_stripped(self):
+        assert slugify("--foo--") == "foo"
+
+    def test_empty_string_fallback(self):
+        assert slugify("") == "market"
+
+    def test_none_fallback(self):
+        assert slugify(None) == "market"
+
+    def test_max_len_truncation(self):
+        result = slugify("a" * 300, max_len=10)
+        assert len(result) <= 10
+
+    def test_truncation_no_trailing_dash(self):
+        # "abcde-fgh" truncated to 5 should not end with dash
+        result = slugify("abcde fgh", max_len=5)
+        assert not result.endswith("-")
+
+    def test_already_clean(self):
+        assert slugify("hello-world") == "hello-world"
+
+    def test_numbers_preserved(self):
+        assert slugify("item-42") == "item-42"
+
+    def test_accented_characters(self):
+        assert slugify("über straße") == "uber-strae"