Document the Linux (Debian/Ubuntu) build and OpenJPEG version fallback
Document stage 11: atomic output, Ctrl+C (exit 10), --dry-run, sanity limits Usage: complete --help block (--dry-run/--keep-j2k/--no-alpha were missing), new Robustness section, exit code 10, dry run and [interrupted] log samples, dry-run example, headless GUI note. Troubleshooting: interrupted runs, .part files, implausible sizes. Architecture: Interrupt module, atomic writes, size limits before allocation, 99 tests. Home: stage 11 done.
Add the wiki pages: overview, installation, usage, GUI, cache format, architecture, performance, troubleshooting, legal notice