feat(fleet): system-type profiles — declarative roster+topology mapping (H2)

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>

packages/mosaic/src/commands/fleet.ts

@@ -9,6 +9,7 @@ import type { Command } from 'commander';
 import YAML from 'yaml';
 import { resolveCommsBlock } from '../fleet/comms-onboarding.js';
 import { registerFleetBacklogCommand } from './fleet-backlog.js';
+import { registerFleetProfileCommand } from './fleet-profiles.js';
 
 /**
  * A function that spawns a command with inherited stdio (TTY passthrough).
@@ -1706,6 +1707,10 @@ export function registerFleetCommand(program: Command, deps: FleetCommandDeps =
   // fleet/ directory as the roster and heartbeats.
   registerFleetBacklogCommand(cmd, () => cmd.opts<{ mosaicHome: string }>().mosaicHome);
 
+  // System-type profiles (H2): declarative persona roster + topology, resolved
+  // from <mosaicHome>/fleet/profiles/*.yaml using the same --mosaic-home flag.
+  registerFleetProfileCommand(cmd, () => cmd.opts<{ mosaicHome: string }>().mosaicHome);
+
   return cmd;
 }