feat(notes): _strip_type_nouns helper for search query sanitization

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

src/fabledassistant/services/notes.py

@@ -22,6 +22,17 @@ def _normalize_tags(tags: list[str]) -> list[str]:
     return out
 
 
+# Type-nouns the LLM tends to include in search queries. Treating them as
+# required ILIKE terms drops literal-title matches; we strip them server-side
+# and let the `type` / `project` parameters scope results instead.
+_SEARCH_TYPE_NOUNS = {"task", "tasks", "note", "notes", "project", "projects"}
+
+
+def _strip_type_nouns(q: str) -> list[str]:
+    """Return q's tokens with type-nouns removed (case-insensitive)."""
+    return [t for t in q.split() if t.lower() not in _SEARCH_TYPE_NOUNS]
+
+
 async def _maybe_reactivate_project(project_id: int) -> None:
     """If a project is paused, reactivate it — activity indicates resumed work."""
     from fabledassistant.models.project import Project