feat: implement tag filtering with include/exclude states

- Update frontend tag filter to cycle through include/exclude/clear states
- Add backend support for tag_include and tag_exclude query parameters
- Maintain backward compatibility with legacy tag parameter
- Store tag states as dictionary with 'include'/'exclude' values
- Update test matrix documentation to reflect new tag behavior

The changes enable more granular tag filtering where users can now explicitly include or exclude specific tags, rather than just adding tags to a simple inclusion list. This provides better control over search results and improves the filtering user experience.

tests/services/test_base_model_service.py

@@ -5,6 +5,7 @@ from py.services.lora_service import LoraService
 from py.services.checkpoint_service import CheckpointService
 from py.services.embedding_service import EmbeddingService
 from py.services.model_query import (
+    FilterCriteria,
     ModelCacheRepository,
     ModelFilterSet,
     SearchStrategy,
@@ -126,7 +127,7 @@ async def test_get_paginated_data_uses_injected_collaborators():
         search="query",
         fuzzy_search=True,
         base_models=["base"],
-        tags=["tag"],
+        tags={"tag": "include"},
         search_options={"recursive": False},
         favorites_only=True,
     )
@@ -141,7 +142,7 @@ async def test_get_paginated_data_uses_injected_collaborators():
     assert call_data == data
     assert criteria.folder == "root"
     assert criteria.base_models == ["base"]
-    assert criteria.tags == ["tag"]
+    assert criteria.tags == {"tag": "include"}
     assert criteria.favorites_only is True
     assert criteria.search_options.get("recursive") is False
 
@@ -234,7 +235,7 @@ async def test_get_paginated_data_filters_and_searches_combination():
         folder="root",
         search="artist",
         base_models=["v1"],
-        tags=["tag1"],
+        tags={"tag1": "include"},
         search_options={"creator": True, "tags": True},
         favorites_only=True,
     )
@@ -533,6 +534,36 @@ async def test_get_paginated_data_update_available_only_without_update_service()
     assert response["total_pages"] == 0
 
 
+def test_model_filter_set_handles_include_and_exclude_tag_filters():
+    settings = StubSettings({})
+    filter_set = ModelFilterSet(settings)
+    data = [
+        {"model_name": "StyleOnly", "tags": ["style"]},
+        {"model_name": "StyleAnime", "tags": ["style", "anime"]},
+        {"model_name": "AnimeOnly", "tags": ["anime"]},
+    ]
+
+    criteria = FilterCriteria(tags={"style": "include", "anime": "exclude"})
+    result = filter_set.apply(data, criteria)
+
+    assert [item["model_name"] for item in result] == ["StyleOnly"]
+
+
+def test_model_filter_set_supports_legacy_tag_arrays():
+    settings = StubSettings({})
+    filter_set = ModelFilterSet(settings)
+    data = [
+        {"model_name": "StyleOnly", "tags": ["style"]},
+        {"model_name": "StyleAnime", "tags": ["style", "anime"]},
+        {"model_name": "AnimeOnly", "tags": ["anime"]},
+    ]
+
+    criteria = FilterCriteria(tags=["style"])
+    result = filter_set.apply(data, criteria)
+
+    assert [item["model_name"] for item in result] == ["StyleOnly", "StyleAnime"]
+
+
 @pytest.mark.asyncio
 @pytest.mark.parametrize(
     "service_cls, extra_fields",