Add declarative system-type profiles: framework/fleet/profiles/*.yaml map a
system type to a persona roster + org topology (reports_to, multiplicity).
Profiles are DATA, seeded like roles, so an operator declares a system type and
gets the matching roster from the baseline library with no code change
(NS-9 / AC-NS-6).
- 5 baseline profiles: software-delivery, personal-assistant, research,
business (company-in-a-box), marketing.
- fleet-profiles.ts: loadProfiles/loadProfile/parseProfile/validateProfile +
listPersonaClasses (extracts valid classes from the role library by unioning
inline `class:` markers, LIBRARY.md rows, and role filenames so marker-less
personas like planner/decomposition resolve).
- CLI: `mosaic fleet profile list|show [--json]`; invalid profiles exit non-zero.
- Spec covers parse/validate, the library-drift guard (every referenced class
resolves against the real role library), and unknown-class/reports_to rejection.
- install.sh: profiles seed via the existing rsync (comment clarified; the
preserved top-level `fleet/*.yaml` glob does not shadow fleet/profiles/*.yaml).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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