refactor: Phase 3 — reorganize tests into module-mirroring subdirectories

Move 97 test files from flat tests/ into 13 subdirectories:
  tests/dashboard/   (8 files — routes, mobile, mission control)
  tests/swarm/       (17 files — coordinator, docker, routing, tasks)
  tests/timmy/       (12 files — agent, backends, CLI, tools)
  tests/self_coding/  (14 files — git safety, indexer, self-modify)
  tests/lightning/   (3 files — L402, LND, interface)
  tests/creative/    (8 files — assembler, director, image/music/video)
  tests/integrations/ (10 files — chat bridge, telegram, voice, websocket)
  tests/mcp/         (4 files — bootstrap, discovery, executor)
  tests/spark/       (3 files — engine, tools, events)
  tests/hands/       (3 files — registry, oracle, phase5)
  tests/scripture/   (1 file)
  tests/infrastructure/ (3 files — router cascade, API)
  tests/security/    (3 files — XSS, regression)

Fix Path(__file__) reference in test_mobile_scenarios.py for new depth.
Add __init__.py to all test subdirectories.

Tests: 1503 passed, 9 failed (pre-existing), 53 errors (pre-existing)

https://claude.ai/code/session_019oMFNvD8uSGSSmBMGkBfQN

tests/creative/test_video_tools.py

@@ -0,0 +1,93 @@
+"""Tests for tools.video_tools — Video generation (Reel persona).
+
+Heavy AI model tests are skipped; only catalogue, interface, and
+resolution preset tests run in CI.
+"""
+
+import pytest
+from unittest.mock import patch, MagicMock
+
+from tools.video_tools import (
+    VIDEO_TOOL_CATALOG,
+    RESOLUTION_PRESETS,
+    VIDEO_STYLES,
+    list_video_styles,
+    generate_video_clip,
+    image_to_video,
+)
+
+
+class TestVideoToolCatalog:
+    def test_catalog_has_all_tools(self):
+        expected = {"generate_video_clip", "image_to_video", "list_video_styles"}
+        assert expected == set(VIDEO_TOOL_CATALOG.keys())
+
+    def test_catalog_entries_have_required_keys(self):
+        for tool_id, info in VIDEO_TOOL_CATALOG.items():
+            assert "name" in info
+            assert "description" in info
+            assert "fn" in info
+            assert callable(info["fn"])
+
+
+class TestResolutionPresets:
+    def test_480p_preset(self):
+        assert RESOLUTION_PRESETS["480p"] == (854, 480)
+
+    def test_720p_preset(self):
+        assert RESOLUTION_PRESETS["720p"] == (1280, 720)
+
+
+class TestVideoStyles:
+    def test_common_styles_present(self):
+        for style in ["cinematic", "anime", "documentary"]:
+            assert style in VIDEO_STYLES
+
+
+class TestListVideoStyles:
+    def test_returns_styles_and_resolutions(self):
+        result = list_video_styles()
+        assert result["success"]
+        assert "cinematic" in result["styles"]
+        assert "480p" in result["resolutions"]
+        assert "720p" in result["resolutions"]
+
+
+class TestGenerateVideoClipInterface:
+    def test_raises_without_creative_deps(self):
+        with patch("tools.video_tools._t2v_pipeline", None):
+            with patch("tools.video_tools._get_t2v_pipeline", side_effect=ImportError("no diffusers")):
+                with pytest.raises(ImportError):
+                    generate_video_clip("a sunset")
+
+    def test_duration_clamped(self):
+        """Duration is clamped to 2–10 range."""
+        import sys
+
+        mock_pipe = MagicMock()
+        mock_pipe.device = "cpu"
+        mock_result = MagicMock()
+        mock_result.frames = [[MagicMock() for _ in range(48)]]
+        mock_pipe.return_value = mock_result
+
+        mock_torch = MagicMock()
+        mock_torch.Generator.return_value = MagicMock()
+
+        out_dir = MagicMock()
+        out_dir.__truediv__ = MagicMock(return_value=MagicMock(__str__=lambda s: "/fake/clip.mp4"))
+
+        with patch.dict(sys.modules, {"torch": mock_torch}):
+            with patch("tools.video_tools._get_t2v_pipeline", return_value=mock_pipe):
+                with patch("tools.video_tools._export_frames_to_mp4"):
+                    with patch("tools.video_tools._output_dir", return_value=out_dir):
+                        with patch("tools.video_tools._save_metadata"):
+                            result = generate_video_clip("test", duration=50)
+                            assert result["duration"] == 10  # clamped
+
+
+class TestImageToVideoInterface:
+    def test_raises_without_creative_deps(self):
+        with patch("tools.video_tools._t2v_pipeline", None):
+            with patch("tools.video_tools._get_t2v_pipeline", side_effect=ImportError("no diffusers")):
+                with pytest.raises(ImportError):
+                    image_to_video("/fake/image.png", "animate")