feat: enable anime parsing and organization with dedicated templates

Anime files with SxxEyy format are now parsed and organized into
anime-specific directories using configurable templates. Files with
absolute episode numbering (no season info) are marked needs_review
for manual handling. Also removes unused imports flagged by ruff.

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

tests/test_planner.py

@@ -349,6 +349,36 @@ def test_generate_plan_for_anime_category(config):
     assert "anime" in operation.reason.lower() or "not organized" in operation.reason.lower()
 
 
+def test_generate_plan_for_anime_with_identity(config):
+    """Test plan generation for anime files with parsed identity uses anime templates."""
+    video_file = VideoFile(
+        path=Path("/mnt/nas/videos/anime/Some.Anime.S01E05.mkv"),
+        filename="Some.Anime.S01E05.mkv",
+        size_bytes=500000,
+        modified_timestamp=datetime.now(timezone.utc),
+        category="anime"
+    )
+
+    identity = SeriesIdentity(
+        title="Some Anime",
+        season=1,
+        episodes=[5],
+        confidence=0.9,
+        needs_review=False,
+        original_filename="Some.Anime.S01E05.mkv",
+    )
+
+    plan = generate_plan([(video_file, identity)], config)
+
+    assert len(plan.operations) == 1
+    operation = plan.operations[0]
+    assert operation.operation_type in ("move", "rename")
+    assert operation.destination_path is not None
+    assert "anime" in str(operation.destination_path).lower()
+    assert "series" not in str(operation.destination_path).lower()
+    assert "Some_Anime" in operation.destination_path.name or "Some Anime" in str(operation.destination_path)
+
+
 def test_generate_plan_for_other_category(config):
     """Test plan generation for other category files (no-op in v1)."""
     video_file = VideoFile(