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/spark/test_spark_tools_creative.py

@@ -0,0 +1,110 @@
+"""Tests for Spark engine tool-level and creative pipeline event capture.
+
+Covers the new on_tool_executed() and on_creative_step() methods added
+in Phase 6.
+"""
+
+import pytest
+
+from spark.engine import SparkEngine
+from spark.memory import get_events, count_events
+
+
+@pytest.fixture(autouse=True)
+def tmp_spark_db(tmp_path, monkeypatch):
+    db_path = tmp_path / "spark.db"
+    monkeypatch.setattr("spark.memory.DB_PATH", db_path)
+    monkeypatch.setattr("spark.eidos.DB_PATH", db_path)
+    yield db_path
+
+
+class TestOnToolExecuted:
+    def test_captures_tool_event(self):
+        engine = SparkEngine(enabled=True)
+        eid = engine.on_tool_executed("agent-a", "git_commit", task_id="t1")
+        assert eid is not None
+        events = get_events(event_type="tool_executed")
+        assert len(events) == 1
+        assert "git_commit" in events[0].description
+
+    def test_captures_tool_failure(self):
+        engine = SparkEngine(enabled=True)
+        eid = engine.on_tool_executed("agent-a", "generate_image", success=False)
+        assert eid is not None
+        events = get_events(event_type="tool_executed")
+        assert len(events) == 1
+        assert "FAIL" in events[0].description
+
+    def test_captures_duration(self):
+        engine = SparkEngine(enabled=True)
+        engine.on_tool_executed("agent-a", "generate_song", duration_ms=5000)
+        events = get_events(event_type="tool_executed")
+        assert len(events) == 1
+
+    def test_disabled_returns_none(self):
+        engine = SparkEngine(enabled=False)
+        result = engine.on_tool_executed("agent-a", "git_push")
+        assert result is None
+
+    def test_multiple_tool_events(self):
+        engine = SparkEngine(enabled=True)
+        engine.on_tool_executed("agent-a", "git_add")
+        engine.on_tool_executed("agent-a", "git_commit")
+        engine.on_tool_executed("agent-a", "git_push")
+        assert count_events("tool_executed") == 3
+
+
+class TestOnCreativeStep:
+    def test_captures_creative_step(self):
+        engine = SparkEngine(enabled=True)
+        eid = engine.on_creative_step(
+            project_id="proj-1",
+            step_name="storyboard",
+            agent_id="pixel-001",
+            output_path="/data/images/frame.png",
+        )
+        assert eid is not None
+        events = get_events(event_type="creative_step")
+        assert len(events) == 1
+        assert "storyboard" in events[0].description
+
+    def test_captures_failed_step(self):
+        engine = SparkEngine(enabled=True)
+        engine.on_creative_step(
+            project_id="proj-1",
+            step_name="music",
+            agent_id="lyra-001",
+            success=False,
+        )
+        events = get_events(event_type="creative_step")
+        assert len(events) == 1
+        assert "FAIL" in events[0].description
+
+    def test_disabled_returns_none(self):
+        engine = SparkEngine(enabled=False)
+        result = engine.on_creative_step("p1", "storyboard", "pixel-001")
+        assert result is None
+
+    def test_full_pipeline_events(self):
+        engine = SparkEngine(enabled=True)
+        steps = ["storyboard", "music", "video", "assembly"]
+        agents = ["pixel-001", "lyra-001", "reel-001", "reel-001"]
+        for step, agent in zip(steps, agents):
+            engine.on_creative_step("proj-1", step, agent)
+        assert count_events("creative_step") == 4
+
+
+class TestSparkStatusIncludesNewTypes:
+    def test_status_includes_tool_executed(self):
+        engine = SparkEngine(enabled=True)
+        engine.on_tool_executed("a", "git_commit")
+        status = engine.status()
+        assert "tool_executed" in status["event_types"]
+        assert status["event_types"]["tool_executed"] == 1
+
+    def test_status_includes_creative_step(self):
+        engine = SparkEngine(enabled=True)
+        engine.on_creative_step("p1", "storyboard", "pixel-001")
+        status = engine.status()
+        assert "creative_step" in status["event_types"]
+        assert status["event_types"]["creative_step"] == 1