feat(platform): add source readiness operations view

vehicle-data-platform/apps/api/internal/platform/model.go

@@ -173,6 +173,34 @@ type MissingSourceStat struct {
 	Count    int    `json:"count"`
 }
 
+type SourceReadinessPlan struct {
+	TotalVehicles     int                  `json:"totalVehicles"`
+	OnlineVehicles    int                  `json:"onlineVehicles"`
+	KafkaLag          *int                 `json:"kafkaLag"`
+	ActiveConnections *int                 `json:"activeConnections"`
+	RedisOnlineKeys   *int                 `json:"redisOnlineKeys"`
+	PlatformRelease   string               `json:"platformRelease"`
+	Sources           []SourceReadinessRow `json:"sources"`
+}
+
+type SourceReadinessRow struct {
+	Protocol        string  `json:"protocol"`
+	Role            string  `json:"role"`
+	Online          int     `json:"online"`
+	Total           int     `json:"total"`
+	OnlineRate      float64 `json:"onlineRate"`
+	MissingVehicles int     `json:"missingVehicles"`
+	Severity        string  `json:"severity"`
+	Status          string  `json:"status"`
+	Evidence        string  `json:"evidence"`
+	Action          string  `json:"action"`
+	Acceptance      string  `json:"acceptance"`
+	VehiclesHash    string  `json:"vehiclesHash"`
+	RealtimeHash    string  `json:"realtimeHash"`
+	HistoryHash     string  `json:"historyHash"`
+	AlertHash       string  `json:"alertHash"`
+}
+
 type ArchiveMissingFieldStat struct {
 	Field string `json:"field"`
 	Title string `json:"title"`