feat(quill): assistant crow Quill — addressable service role with persona reply (#38)

quill.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"strings"
+	"time"
+)
+
+const quillSystem = `You are Quill crow, the owner's assistant and point of contact in a nest of AI crows.
+Answer the owner in one or two plain sentences. You are text-only: no web, no files, no tools.`
+
+// respondQuill answers a message addressed to Quill, the assistant service
+// role (CHATROOM_SPEC section 6). D1: one in-character reply through the
+// flock. Reading the nest for status (D2) and relaying (D3) extend this file.
+func (s *Server) respondQuill(nest Nest, req Message) {
+	budget := &Budget{name: "quill-reply", limit: s.p.G.TokenBudgetPerItem}
+	system := systemFor("Quill", quillSystem, false)
+	prompt := "FROM: " + req.Author + "\nMESSAGE: " + req.Text
+	answer, err := s.p.Flock.ask(s.ctx, nil, "Quill", system, prompt, budget)
+	if err != nil {
+		return
+	}
+	reply := Message{
+		NestID:    nest.ID,
+		Kind:      "deliver",
+		Author:    "Quill",
+		Text:      strings.TrimSpace(answer),
+		To:        req.Author,
+		RefersTo:  req.MsgID(),
+		TaggedBy:  "harness",
+		Timestamp: time.Now().UTC().Format(time.RFC3339),
+	}
+	if record, err := s.msgs.Append(reply); err == nil {
+		s.emitNestMessage(record)
+	}
+}