fix(robot): resolve suite setup hangs and RF7 syntax errors

- Replace blocking Run Process with Start Process for uvicorn server
- Fix RF7 IF condition syntax: ${status_code} → $status_code
- Add bash wrapper script for reliable conda env server startup
- Add Create Anonymous Session to suite setup for health check polling
- Simplify .gitignore for robot results

tests/robot/start_server.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+# Wrapper script to start the Aniworld FastAPI server for Robot Framework tests
+cd /home/lukas/Volume/repo/Aniworld
+exec /home/lukas/miniconda3/envs/AniWorld/bin/python -m uvicorn src.server.fastapi_app:app --host 127.0.0.1 --port 8765 --no-access-log