Rename the size-numbered profiles so the digits read as parameter count,
not Qwen version: qwen35 -> qwen35b (llama.cpp.config.example, build_archive
smoke test, SECURITY_AND_OPERATIONS.md) and qwen27 -> qwen27b
(llama.cpp.config).
Drop the misleading `--profile qwen35` from the README/man/install examples:
that profile only exists in the .example file, so pasted commands failed
against the real config. Primary examples now omit --profile (using the
[default] section, which always resolves), with one example plus a note
showing how to select a real [model.<name>] profile.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>