feat: 🎉 postgresql broker first commit of forked prototype from my original code

pkg/broker/models/models.go

@@ -0,0 +1,73 @@
+package models
+
+import "time"
+
+// Job represents a broker job
+type Job struct {
+	ID             int64     `json:"id"`
+	JobName        string    `json:"job_name"`
+	JobPriority    int32     `json:"job_priority"`
+	JobQueue       int       `json:"job_queue"`
+	JobLanguage    string    `json:"job_language"`
+	ExecuteStr     string    `json:"execute_str"`
+	ExecuteResult  string    `json:"execute_result"`
+	ErrorMsg       string    `json:"error_msg"`
+	CompleteStatus int       `json:"complete_status"`
+	RunAs          string    `json:"run_as"`
+	UserLogin      string    `json:"user_login"`
+	ScheduleID     int64     `json:"schedule_id"`
+	CreatedAt      time.Time `json:"created_at"`
+	UpdatedAt      time.Time `json:"updated_at"`
+}
+
+// Instance represents a broker instance
+type Instance struct {
+	ID          int64     `json:"id"`
+	Name        string    `json:"name"`
+	Hostname    string    `json:"hostname"`
+	PID         int       `json:"pid"`
+	Version     string    `json:"version"`
+	Status      string    `json:"status"` // active, inactive, shutdown
+	StartedAt   time.Time `json:"started_at"`
+	LastPingAt  time.Time `json:"last_ping_at"`
+	ShutdownAt  time.Time `json:"shutdown_at"`
+	QueueCount  int       `json:"queue_count"`
+	JobsHandled int64     `json:"jobs_handled"`
+}
+
+// Schedule represents a job schedule
+type Schedule struct {
+	ID          int64     `json:"id"`
+	Name        string    `json:"name"`
+	CronExpr    string    `json:"cron_expr"`
+	Enabled     bool      `json:"enabled"`
+	JobName     string    `json:"job_name"`
+	JobPriority int32     `json:"job_priority"`
+	JobQueue    int       `json:"job_queue"`
+	ExecuteStr  string    `json:"execute_str"`
+	RunAs       string    `json:"run_as"`
+	CreatedAt   time.Time `json:"created_at"`
+	UpdatedAt   time.Time `json:"updated_at"`
+	LastRunAt   time.Time `json:"last_run_at"`
+	NextRunAt   time.Time `json:"next_run_at"`
+}
+
+// JobStatus represents job completion statuses
+type JobStatus int
+
+const (
+	JobStatusPending   JobStatus = 0
+	JobStatusRunning   JobStatus = 1
+	JobStatusCompleted JobStatus = 2
+	JobStatusFailed    JobStatus = 3
+	JobStatusCancelled JobStatus = 4
+)
+
+// InstanceStatus represents instance statuses
+type InstanceStatus string
+
+const (
+	InstanceStatusActive   InstanceStatus = "active"
+	InstanceStatusInactive InstanceStatus = "inactive"
+	InstanceStatusShutdown InstanceStatus = "shutdown"
+)