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).

cmd/nomos/main.go

@@ -17,18 +17,18 @@ import (
 
 func main() {
 	if len(os.Args) < 2 {
-		fmt.Fprintln(os.Stderr, "usage: hermes serve")
+		fmt.Fprintln(os.Stderr, "usage: nomos serve")
 		os.Exit(1)
 	}
 
-	mcpURL := os.Getenv("HERMES_MCP_URL")
+	mcpURL := os.Getenv("NOMOS_MCP_URL")
 	if mcpURL == "" {
 		mcpURL = "http://localhost:8090/mcp"
 	}
 
-	agentSlug := os.Getenv("HERMES_AGENT_SLUG")
+	agentSlug := os.Getenv("NOMOS_AGENT_SLUG")
 	if agentSlug == "" {
-		agentSlug = "agent:hermes"
+		agentSlug = "agent:nomos"
 	}
 
 	switch os.Args[1] {
@@ -38,7 +38,7 @@ func main() {
 
 		client, err := newMCPClient(mcpURL)
 		if err != nil {
-			slog.Error("hermes: mcp connect", "url", mcpURL, "error", err)
+			slog.Error("nomos: mcp connect", "url", mcpURL, "error", err)
 			os.Exit(1)
 		}
 
@@ -51,21 +51,21 @@ func main() {
 			handleQuery(w, r, client, agentSlug, mcpURL)
 		})
 
-		addr := os.Getenv("HERMES_LISTEN")
+		addr := os.Getenv("NOMOS_LISTEN")
 		if addr == "" {
 			addr = ":8092"
 		}
 
 		srv := &http.Server{Addr: addr, Handler: mux}
 		go func() {
-			slog.Info("hermes: gateway listening", "addr", addr, "mcp", mcpURL)
+			slog.Info("nomos: gateway listening", "addr", addr, "mcp", mcpURL)
 			if err := srv.ListenAndServe(); err != http.ErrServerClosed {
-				slog.Error("hermes: serve", "error", err)
+				slog.Error("nomos: serve", "error", err)
 			}
 		}()
 
 		<-ctx.Done()
-		slog.Info("hermes: shutting down")
+		slog.Info("nomos: shutting down")
 		srv.Shutdown(context.Background())
 		client.close()
 
@@ -108,7 +108,7 @@ func handleQuery(w http.ResponseWriter, r *http.Request, client *mcpClient, agen
 	duration := time.Since(start).Milliseconds()
 
 	if err != nil {
-		slog.Error("hermes: query failed", "query", req.Query, "error", err)
+		slog.Error("nomos: query failed", "query", req.Query, "error", err)
 		w.Header().Set("Content-Type", "application/json")
 		json.NewEncoder(w).Encode(map[string]any{
 			"error":       err.Error(),
@@ -204,7 +204,7 @@ func newMCPClient(baseURL string) (*mcpClient, error) {
 	resp, err := c.doRequest("initialize", map[string]any{
 		"protocolVersion": "2024-11-05",
 		"capabilities":    map[string]any{},
-		"clientInfo":      map[string]any{"name": "hermes", "version": "2.0"},
+		"clientInfo":      map[string]any{"name": "nomos", "version": "2.0"},
 	})
 	if err != nil {
 		return nil, fmt.Errorf("initialize: %w", err)
@@ -217,7 +217,7 @@ func newMCPClient(baseURL string) (*mcpClient, error) {
 	// Send initialized notification
 	c.doRequest("notifications/initialized", map[string]any{})
 
-	slog.Info("hermes: mcp connected", "session", c.sessionID[:16]+"...")
+	slog.Info("nomos: mcp connected", "session", c.sessionID[:16]+"...")
 	return c, nil
 }
 

cmd/oikos/main.go

@@ -120,7 +120,7 @@ Roles:
   knowledge  Convert wiki to knowledge seed (one-shot)
   version    Print version info
 
-The operator interface is Hermes (MCP agent) — no CLI needed.
+The operator interface is Nomos (MCP agent) — no CLI needed.
 Environment:
   OIKOS_DATABASE_URL    Postgres connection string
   OIKOS_API_LISTEN      API listen address (default :8090)