refactor(tools): resolve_project uses shared score_project_match helper

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

src/fabledassistant/services/tools/_helpers.py

@@ -54,30 +54,24 @@ def score_project_match(query: str, project) -> float:
 
 
 async def resolve_project(user_id: int, project_name: str):
-    """Exact-then-fuzzy project lookup. Returns the Project or None.
+    """Exact-then-scored project lookup. Returns the Project or None.
 
     Resolution order:
-    1. Exact title match (case-insensitive via DB)
-    2. project_name is a substring of an existing title
-    3. Existing title is a substring of project_name
-    4. SequenceMatcher ratio >= 0.55
+    1. Exact title match (case-insensitive via DB query).
+    2. Highest `score_project_match` across all projects, threshold 0.55.
     """
     from fabledassistant.services.projects import get_project_by_title, list_projects
 
     proj = await get_project_by_title(user_id, project_name)
     if proj is not None:
         return proj
-    needle = project_name.lower().strip()
+
     all_p = await list_projects(user_id)
+    best, best_score = None, 0.0
     for p in all_p:
-        haystack = p.title.lower().strip()
-        if needle in haystack or haystack in needle:
-            return p
-    best, best_r = None, 0.0
-    for p in all_p:
-        r = SequenceMatcher(None, needle, p.title.lower().strip()).ratio()
-        if r >= 0.55 and r > best_r:
-            best, best_r = p, r
+        score = score_project_match(project_name, p)
+        if score >= 0.55 and score > best_score:
+            best, best_score = p, score
     return best