Real-world trigger: libQt6PrintSupport.so.6 missing from CheatEngine
portable binary on Linux Mint 22.3.
Windows/macOS migrants double-click a binary, nothing happens, and they
have no idea why — the dynamic linker error goes to journald silently.
Robin catches 'cannot open shared object file: No such file or directory'
in journald and explains the Linux shared library model, pointing to the
right package manager command (apt/pacman/dnf/zypper) per distro family.
Also documents why 'pip install pyqt6' doesn't fix system library errors.
Added to 23 pattern files covering all source OS / target distro family
combinations.
Pattern files: 12 cross-family migration pairs covering debian, fedora, arch,
opensuse — each tuned to the user's prior tooling (apt, dnf, pacman, zypper).
Includes the custom linux-to-arch file for experienced distro-hoppers and
the macos-to-arch / windows-to-debian expansions from the prior session.
Code changes:
- patterns::load() accepts source_distro_family: Option<&str> — tries
specific debian-to-arch.toml before falling back to linux-to-arch.toml
- MigrationConfig adds source_distro_family: Option<String> with serde default
- complete_onboarding() accepts optional source_distro arg and derives family
via distro_family() for Linux-to-Linux migrations
- llm.rs: Ollama streaming client with Vec<u8> buffer for UTF-8 safety,
emit errors logged not silenced
- commands::chat: spawns stream task, returns immediately so frontend
isn't blocked waiting for full LLM response
- lib.rs: registers mod llm and commands::chat in invoke_handler
