Introduce resolve-fallout4-path.bat to centralize locating the Fallout 4 installation. deploy-all.bat and deploy-ui.bat now call the resolver (accept an optional path arg or prompt interactively), and the chosen path is saved to a local .fallout4-path file (added to .gitignore). Updated docs (docs/dev-log.md, plugin/setup.md) to reflect the new behavior and usage examples. The resolver normalizes game or Data paths, probes common Steam locations, prompts the user when needed, and exports F4_DIR and DATA_DIR for callers.
