[AZ-233] Update Docker Compose and enhance test documentation

- Modified the Docker Compose configuration to include an input root for replay tests and added an environment variable for enabling SITL.
- Enhanced documentation for various testing processes, including the addition of a Runtime Completeness Decomposition Gate and clarifications on internal module testing requirements.
- Updated the implementation completeness report to reflect the current state and added new test cases for performance and resilience scenarios.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker-compose.test.yml

@@ -54,9 +54,20 @@ services:
     build:
       context: .
       dockerfile: deployment/docker/Dockerfile.replay
-    command: ["python", "e2e/replay/run_replay.py", "--output-dir", "/app/data/test-results"]
+    command:
+      [
+        "python",
+        "-m",
+        "e2e.replay.run_replay",
+        "--output-dir",
+        "/app/data/test-results",
+        "--input-root",
+        "/data/input",
+      ]
     env_file:
       - config/ci/runtime.env
+    environment:
+      GPSD_ENABLE_SITL: "1"
     depends_on:
       gps-denied-service:
         condition: service_completed_successfully