Add 6 specialists: security ×2, engineering ×3, specialized ×1 (#720)

Consolidates five gated PRs into one merge (each edited the README roster,
so landing individually would cascade conflicts):

- Security: AI-Generated Code Security Auditor, Secrets & Credential Hygiene
  Engineer (#647, #648 — @Synvoya)
- Engineering: Database Reliability, Developer Tooling, IoT Fleet Engineer
  (#705 — @Hotragn)
- Specialized: Codebase Archaeologist (#681 — @Axion-Web-dev)

All six cleared the full gate: lint 0/0, originality 0.0-0.1% (no dupes vs
roster or each other), proper structure, valid divisions. Roster rows added
to the Security/Engineering/Specialized tables (every link verified). Full
guard suite green — divisions, tools, runbooks, and the Hermes plugin guard —
and the Hermes roster picks up all six (254 -> 260 agents).





Claude-Session: https://claude.ai/code/session_01WKnDRWM4izsB8WAXKszhsq

Co-authored-by: Synvoya <Synvoya@users.noreply.github.com>
Co-authored-by: Hotragn <Hotragn@users.noreply.github.com>
Co-authored-by: Axion-Web-dev <Axion-Web-dev@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

integrations/hermes/README.md

@@ -7,7 +7,7 @@ of adding hundreds of generated skills to `skills.external_dirs`. Hermes sees a
 small fixed tool surface at startup, while the complete Agency roster is
 stored on disk in `data/agents.json` and searched/loaded lazily.
 
-Generated agent count: 254
+Generated agent count: 260
 
 ## Tools exposed to Hermes