fix(agent): correct version log, bump to v0.3.2, increase tailscale timeout

- Replace hardcoded AGENT_VERSION constant with injected version variable
- Bump agent version to 0.3.2
- Increase tailscale up/status timeout from 60s to 120s

agent/main.go

@@ -12,10 +12,7 @@ import (
 // version is injected at build time via -ldflags "-X main.version=X.Y.Z"
 var version = "dev"
 
-const (
-	AGENT_VERSION = "0.3.0"
-	APP_NAME      = "studioE5"
-)
+const APP_NAME = "studioE5"
 
 var (
 	dataDir   = flag.String("data-dir", "./studioE5-data", "Répertoire de données")
@@ -59,7 +56,7 @@ func main() {
 		log.Fatalf("Cannot save config: %v", err)
 	}
 
-	log.Printf("[%s Agent] version=%s node=%s data-dir=%s server=%s", APP_NAME, AGENT_VERSION, cfg.NodeID, *dataDir, cfg.Server)
+	log.Printf("[%s Agent] version=%s node=%s data-dir=%s server=%s", APP_NAME, version, cfg.NodeID, *dataDir, cfg.Server)
 
 	if *uiEnabled {
 		go startUI(*dataDir, cfg.NodeID, cfg.Server)