feat(tools): score_project_match helper with substring-first tiering

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/test_tool_use_fixes.py

@@ -54,3 +54,36 @@ def test_strip_type_nouns_handles_empty_string():
     from fabledassistant.services.notes import _strip_type_nouns
     assert _strip_type_nouns("") == []
     assert _strip_type_nouns("   ") == []
+
+
+def test_score_project_match_exact_title_returns_1():
+    from fabledassistant.services.tools._helpers import score_project_match
+    p = _project(5, "Famous-Supply Work topics")
+    assert score_project_match("Famous-Supply Work topics", p) == 1.0
+
+
+def test_score_project_match_colloquial_substring_at_least_85():
+    """'famous supply' is a substring of normalized 'famous supply work topics'
+    after stripping the hyphen. Substring match returns 0.85."""
+    from fabledassistant.services.tools._helpers import score_project_match
+    p = _project(5, "Famous-Supply Work topics", auto_summary="AT&T fiber circuit")
+    score = score_project_match("famous supply project", p)
+    assert score >= 0.85, f"expected substring tier (>=0.85), got {score}"
+
+
+def test_score_project_match_query_in_summary_returns_70():
+    from fabledassistant.services.tools._helpers import score_project_match
+    p = _project(12, "Minstrel", auto_summary="self-hosted music server")
+    assert score_project_match("music server", p) == 0.70
+
+
+def test_score_project_match_unrelated_returns_low():
+    from fabledassistant.services.tools._helpers import score_project_match
+    p = _project(12, "Minstrel", auto_summary="self-hosted music server")
+    assert score_project_match("garden renovation", p) < 0.5
+
+
+def test_score_project_match_empty_query_returns_zero():
+    from fabledassistant.services.tools._helpers import score_project_match
+    p = _project(5, "Famous-Supply Work topics")
+    assert score_project_match("", p) == 0.0