Fix generate_data.py PermissionError: chown /app to user before USER switch

Fix Space pip install: upgrade pip, --prefer-binary, cap major versions

Dockerfile: remove --only-binary flag, keep python:3.11-slim

Fix OOM: use python:3.11-slim and prefer binary wheels in Dockerfile

Fix OOMKilled build: use requirements-space.txt (no torch) in Dockerfile

Initial submission: Avigilance 2.0 — India Aviation Safety Monitoring OpenEnv