vrcx 0.2.0-dev: BMC + SDS parallel collector

Initial commit of vrcx (Vegman Remote Collect, extended) — the BMC-only
bmccollect renamed and extended with a parallel SDS-host log branch.

- dev/prod/old repo layout
- per-host bmc/ + os/ subdirs, archives/dump_<ip>.tar.gz, outer session tarball
- SdsSession (paramiko, sudo via -S), OS_COMMAND_TABLE (lsiget, storcli, smartctl, journal, dmidecode, etc.)
- SDS IP discovery via Redfish EthernetInterfaces -> /24 ping-sweep -> arp -a
- UI shows BMC|OS dual progress per host
- CI/pyinstaller paths updated for dev/

dev/vrcx-launcher.py

@@ -0,0 +1,13 @@
+"""
+PyInstaller entry point — sits at the repo root and uses an *absolute* import
+so the bundled exe doesn't need relative-import resolution at runtime.
+
+For dev work without an install use `python -m vrcx` instead (that path
+goes through `src/vrcx/__main__.py` and relative imports work).
+"""
+
+from vrcx.app import main
+
+
+if __name__ == "__main__":
+    main()