feat: version agent remontée au serveur et affichée dans la popup

- payload.rs : champ version (env!("CARGO_PKG_VERSION"))
- models.go  : Version dans AgentMetrics et Agent
- db.go      : colonne version dans agents + migration ALTER TABLE
- popups.js  : badge version dans la section INFORMATIONS

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/db/db.go

@@ -20,7 +20,7 @@ const schema = `
 CREATE TABLE IF NOT EXISTS agents (
 	id TEXT PRIMARY KEY, hostname TEXT NOT NULL,
 	ip TEXT NOT NULL DEFAULT '', status TEXT NOT NULL DEFAULT 'offline',
-	last_seen INTEGER NOT NULL DEFAULT 0
+	last_seen INTEGER NOT NULL DEFAULT 0, version TEXT NOT NULL DEFAULT ''
 );
 CREATE TABLE IF NOT EXISTS metrics (
 	id INTEGER PRIMARY KEY AUTOINCREMENT, agent_id TEXT NOT NULL, ts INTEGER NOT NULL,
@@ -57,8 +57,12 @@ func Open(path string) (*DB, error) {
 }
 
 func (d *DB) migrate() error {
-	_, err := d.conn.Exec(schema)
-	return err
+	if _, err := d.conn.Exec(schema); err != nil {
+		return err
+	}
+	// Migrations additives pour les colonnes ajoutées après la création initiale
+	_, _ = d.conn.Exec(`ALTER TABLE agents ADD COLUMN version TEXT NOT NULL DEFAULT ''`)
+	return nil
 }
 
 func (d *DB) Close() { _ = d.conn.Close() }
@@ -66,11 +70,12 @@ func (d *DB) Close() { _ = d.conn.Close() }
 func (d *DB) UpsertAgent(m *models.AgentMetrics) error {
 	ts := time.Now().Unix()
 	_, err := d.conn.Exec(`
-		INSERT INTO agents (id, hostname, ip, status, last_seen)
-		VALUES (?, ?, ?, ?, ?)
+		INSERT INTO agents (id, hostname, ip, status, last_seen, version)
+		VALUES (?, ?, ?, ?, ?, ?)
 		ON CONFLICT(id) DO UPDATE SET
-			ip=excluded.ip, status=excluded.status, last_seen=excluded.last_seen`,
-		m.Hostname, m.Hostname, m.IP, m.Status, ts)
+			ip=excluded.ip, status=excluded.status, last_seen=excluded.last_seen,
+			version=CASE WHEN excluded.version != '' THEN excluded.version ELSE version END`,
+		m.Hostname, m.Hostname, m.IP, m.Status, ts, m.Version)
 	return err
 }
 
@@ -104,7 +109,7 @@ func (d *DB) InsertMetrics(m *models.AgentMetrics) error {
 }
 
 func (d *DB) GetAgents() ([]models.Agent, error) {
-	rows, err := d.conn.Query(`SELECT id, hostname, ip, status, last_seen FROM agents`)
+	rows, err := d.conn.Query(`SELECT id, hostname, ip, status, last_seen, version FROM agents`)
 	if err != nil {
 		return nil, err
 	}
@@ -112,7 +117,7 @@ func (d *DB) GetAgents() ([]models.Agent, error) {
 	var agents []models.Agent
 	for rows.Next() {
 		var a models.Agent
-		if err := rows.Scan(&a.ID, &a.Hostname, &a.IP, &a.Status, &a.LastSeen); err != nil {
+		if err := rows.Scan(&a.ID, &a.Hostname, &a.IP, &a.Status, &a.LastSeen, &a.Version); err != nil {
 			return nil, err
 		}
 		agents = append(agents, a)

server/models/models.go

@@ -4,6 +4,7 @@ type AgentMetrics struct {
 	Hostname    string        `json:"hostname"`
 	IP          string        `json:"ip"`
 	Status      string        `json:"status"`
+	Version     string        `json:"version"`
 	CPUPercent  *float64      `json:"cpu_percent"`
 	MemoryUsed  *int64        `json:"memory_used"`
 	MemoryFree  *int64        `json:"memory_free"`
@@ -32,6 +33,7 @@ type Agent struct {
 	IP          string        `json:"ip"`
 	Status      string        `json:"status"`
 	LastSeen    int64         `json:"last_seen"`
+	Version     string        `json:"version,omitempty"`
 	LastMetrics *AgentMetrics `json:"last_metrics,omitempty"`
 }