- Add resolvePythonPath() function that handles:
- PYTHON_PATH env var override (highest priority)
- Portable installations (python_embeded/python.exe)
- Standard venv with correct paths per OS:
- Windows: .venv/Scripts/python.exe
- Unix: .venv/bin/python
- Remove hardcoded Unix paths from acestep.ts and generate.ts
- Remove hardcoded /home/ambsd default path
Fixes "ENOENT" errors on Windows when spawning Python processes.
Users on Windows were getting "no such table: users" errors because
migrations were never executed. The migrate.ts file existed but was
not imported by the server entry point.