Fix recipe listing, effects count, and add nav counts to all pages

- Fix list_by_type to return node_id (IPFS CID) instead of local hash
- Fix effects count on home page (count from _effects/ directory)
- Add nav_counts to all page templates (recipes, effects, runs, media, storage)
- Add editable metadata section to cache/media detail page
- Show more metadata on recipe detail page (ID, IPFS CID, step count)
- Update tests for new list_by_type behavior

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

tests/test_recipe_visibility.py

@@ -20,14 +20,14 @@ class TestRecipeListingFlow:
         assert 'def list_by_type' in content, \
             "L1CacheManager should have list_by_type method"
 
-    def test_list_by_type_returns_cid(self) -> None:
-        """list_by_type should return entry.cid values."""
+    def test_list_by_type_returns_node_id(self) -> None:
+        """list_by_type should return entry.node_id values (IPFS CID)."""
         path = Path('/home/giles/art/art-celery/cache_manager.py')
         content = path.read_text()
 
-        # Find list_by_type function and verify it appends entry.cid
-        assert 'hashes.append(entry.cid)' in content, \
-            "list_by_type should append entry.cid to results"
+        # Find list_by_type function and verify it appends entry.node_id
+        assert 'cids.append(entry.node_id)' in content, \
+            "list_by_type should append entry.node_id (IPFS CID) to results"
 
     def test_recipe_service_uses_cache_list_by_type(self) -> None:
         """Recipe service should use cache.list_by_type('recipe')."""
@@ -110,3 +110,41 @@ class TestCacheEntryHasCid:
         source = inspect.getsource(Cache.put)
         assert 'cid=' in source, \
             "Cache.put should set cid on entry"
+
+
+class TestListByTypeReturnsEntries:
+    """Tests for list_by_type returning cached entries."""
+
+    def test_list_by_type_iterates_cache_entries(self) -> None:
+        """list_by_type should iterate self.cache.list_entries()."""
+        path = Path('/home/giles/art/art-celery/cache_manager.py')
+        content = path.read_text()
+
+        assert 'self.cache.list_entries()' in content, \
+            "list_by_type should iterate cache entries"
+
+    def test_list_by_type_filters_by_node_type(self) -> None:
+        """list_by_type should filter entries by node_type."""
+        path = Path('/home/giles/art/art-celery/cache_manager.py')
+        content = path.read_text()
+
+        assert 'entry.node_type == node_type' in content, \
+            "list_by_type should filter by node_type"
+
+    def test_list_by_type_returns_node_id(self) -> None:
+        """list_by_type should return entry.node_id (IPFS CID)."""
+        path = Path('/home/giles/art/art-celery/cache_manager.py')
+        content = path.read_text()
+
+        assert 'cids.append(entry.node_id)' in content, \
+            "list_by_type should append entry.node_id (IPFS CID)"
+
+    def test_artdag_cache_list_entries_returns_all(self) -> None:
+        """artdag Cache.list_entries should return all entries."""
+        from artdag import Cache
+        import inspect
+
+        source = inspect.getsource(Cache.list_entries)
+        # Should return self._entries.values()
+        assert '_entries' in source, \
+            "list_entries should access _entries dict"