feat(landscape): run/node domain, seed migration, repository

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

internal/domain/landscape.go

@@ -0,0 +1,68 @@
+package domain
+
+import (
+	"encoding/json"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+// LPRunStatus is the lifecycle status of a Landscape Program run.
+type LPRunStatus string
+
+// Landscape Program run statuses.
+const (
+	LPRunQueued    LPRunStatus = "queued"
+	LPRunRunning   LPRunStatus = "running"
+	LPRunSucceeded LPRunStatus = "succeeded"
+	LPRunFailed    LPRunStatus = "failed"
+)
+
+// LPNodeStatus is the lifecycle status of a single node within a Landscape
+// Program run.
+type LPNodeStatus string
+
+// Landscape Program run node statuses.
+const (
+	LPNodePending   LPNodeStatus = "pending"
+	LPNodeRunning   LPNodeStatus = "running"
+	LPNodeSkipped   LPNodeStatus = "skipped"
+	LPNodeSucceeded LPNodeStatus = "succeeded"
+	LPNodeFailed    LPNodeStatus = "failed"
+)
+
+// LPDatasetRef references a dataset produced for, or consumed from, a
+// dataset group slot in the Landscape Program graph.
+type LPDatasetRef struct {
+	Group     string    `json:"group"`
+	DatasetID uuid.UUID `json:"dataset_id"`
+}
+
+// LPRun is a single execution of the Landscape Program graph.
+type LPRun struct {
+	ID         uuid.UUID            `json:"id"`
+	Status     LPRunStatus          `json:"status"`
+	FromStage  *int                 `json:"from_stage"`
+	Params     json.RawMessage      `json:"params"`
+	Overrides  map[string]uuid.UUID `json:"overrides"`
+	Error      *string              `json:"error"`
+	CreatedAt  time.Time            `json:"created_at"`
+	StartedAt  *time.Time           `json:"started_at"`
+	FinishedAt *time.Time           `json:"finished_at"`
+	Nodes      []LPRunNode          `json:"nodes"`
+}
+
+// LPRunNode is the execution state of a single graph node within an LPRun.
+type LPRunNode struct {
+	ID          uuid.UUID      `json:"id"`
+	RunID       uuid.UUID      `json:"run_id"`
+	NodeCode    string         `json:"node_code"`
+	Stage       int            `json:"stage"`
+	Status      LPNodeStatus   `json:"status"`
+	Fingerprint string         `json:"fingerprint"`
+	Inputs      []LPDatasetRef `json:"inputs"`
+	Outputs     []LPDatasetRef `json:"outputs"`
+	Error       *string        `json:"error"`
+	StartedAt   *time.Time     `json:"started_at"`
+	FinishedAt  *time.Time     `json:"finished_at"`
+}