Rename the fetch-skip flags to a consistent, descriptive scheme:
--skip-fetch skip BOTH fetches (packages + memstick) — assemble from cache
--skip-fetch-pkg skip only the package + Clawdie-AI fetch (new granular)
--skip-fetch-memstick skip only the FreeBSD memstick fetch (was --skip-memstick-fetch)
Internals split SKIP_FETCH into SKIP_PKG_FETCH + SKIP_MEMSTICK_FETCH; the umbrella
--skip-fetch sets both. The memstick step collapses to a clean skip-or-fetch (the
old three-branch form only existed to couple the pkg-skip flag to memstick reuse,
which the split removes). No legacy alias kept — the flag names state the current
way directly.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
