fix: address review findings — dynamic version, deduplicate KILL, update README

internal/ircserver/commands.go

@@ -8,10 +8,29 @@ import (
 	"strings"
 	"time"
 
+	"sneak.berlin/go/neoirc/internal/globals"
 	"sneak.berlin/go/neoirc/internal/service"
 	"sneak.berlin/go/neoirc/pkg/irc"
 )
 
+// versionString returns the server version for IRC
+// responses, falling back to "neoirc-dev" when globals
+// are not set (e.g. during tests).
+func versionString() string {
+	name := globals.Appname
+	ver := globals.Version
+
+	if name == "" {
+		name = "neoirc"
+	}
+
+	if ver == "" {
+		ver = "dev"
+	}
+
+	return name + "-" + ver
+}
+
 // sendIRCError maps a service.IRCError to an IRC numeric
 // reply on the wire.
 func (c *Conn) sendIRCError(err error) {
@@ -1384,7 +1403,7 @@ func (c *Conn) handleUserhost(
 func (c *Conn) handleVersion(ctx context.Context) {
 	_ = ctx
 
-	version := "neoirc-0.1"
+	version := versionString()
 
 	c.sendNumeric(
 		irc.RplVersion,
@@ -1426,7 +1445,7 @@ func (c *Conn) handleInfo(ctx context.Context) {
 
 	infoLines := []string{
 		"neoirc — IRC semantics over HTTP",
-		"Version: neoirc-0.1",
+		"Version: " + versionString(),
 		"Written in Go",
 	}