N0: rename Hermes → Nomos (standalone commit)

Problem: "Hermes" collides with Nous Researchs unrelated product;
  unclear identity for the resident agent.

  Change: Rename the live service identity across 39 files:
  - cmd/hermes/ → cmd/nomos/ (binary, env vars NOMOS_*)
  - internal/config/ server.go (NomosAgentSlug, nomosAgentID)
  - compose/hermes/ → compose/nomos/ (Dockerfile, service name)
  - hermes/ → nomos/ (SOUL.md, config.yaml, skills/)
  - .agents/HERMES.md → NOMOS.md (persona)
  - tools/setup-hermes-soul.sh → setup-nomos-soul.sh
  - seeds/inventory.yaml (agent:hermes → agent:nomos)
  - migrations/014_rename_agent_hermes_to_nomos.up.sql
  - Caddy vhost hermes.hubris.network → nomos.hubris.network
  - All referencing docs, scripts, ADR notes

  History preserved: archive/, plans/done/, ADRs not rewritten.
  Matrix @hermes notifier account and Legacy bin/hermes on LXC 129
  intentionally untouched (out of scope).

  Risk: N0 is identity-only rename; zero behavioral changes.
  Verification: go build ./... passes; docker compose --profile full
  resolves nomos service; grep -ri hermes (excluding archive/plans)
  returns only intentional refs (LLM model name, Matrix user).

docs/adr/0012-hermes-oikos-interactions.md

@@ -230,4 +230,13 @@ sequenceDiagram
   `GET /clients/{slug}/context`.
 - **The DB is the single source of truth.** All state transitions,
   audit entries, and event emissions go through Postgres. The scheduler,
-  actuator, notifier, and API all read/write the same tables.
+  actuator, notifier, and API all read/write the same tables.
+
+---
+
+**2026-07-08 — renamed to Nomos.** The Hermes agent gateway was renamed to
+Nomos (from *oikonomos*, the steward of the oikos) under the
+[Nomos resident agent plan](../../plans/2026-07-08-nomos-resident-agent.md),
+N0 milestone. The gateway binary (`cmd/nomos`), Docker service, DB slug
+(`agent:nomos`), and all referencing docs were updated. All architectural
+principles in this ADR remain unchanged.

docs/operations/rollback.md

@@ -70,7 +70,7 @@ curl http://localhost:8090/healthz
 # Entity count matches
 curl -s http://localhost:8090/api/v1/entities?limit=1 | jq '.items | length'
 
-# MCP tools working (via Hermes)
+# MCP tools working (via Nomos)
 curl -s http://localhost:8092/query -d '{"tool":"get_health_summary"}'
 ```