feat: multiple scenes

backend/src/db/connection.ts

@@ -24,6 +24,7 @@ export function getDb(): Database.Database {
   db.pragma('foreign_keys = ON')
 
   initSchema(db)
+  migrateSchema(db)
   return db
 }
 
@@ -32,6 +33,7 @@ function initSchema(db: Database.Database): void {
     CREATE TABLE IF NOT EXISTS runs (
       id            TEXT PRIMARY KEY,
       recollectionId TEXT NOT NULL,
+      sceneId       TEXT,
       status        TEXT NOT NULL DEFAULT 'pending',
       graphSnapshot TEXT NOT NULL,
       createdAt     TEXT NOT NULL DEFAULT (datetime('now')),
@@ -61,6 +63,14 @@ function initSchema(db: Database.Database): void {
   `)
 }
 
+function migrateSchema(db: Database.Database): void {
+  // Add sceneId column if it doesn't exist (added in Phase 2)
+  const cols = db.prepare("PRAGMA table_info(runs)").all() as Array<{ name: string }>
+  if (!cols.some((c) => c.name === 'sceneId')) {
+    db.exec('ALTER TABLE runs ADD COLUMN sceneId TEXT')
+  }
+}
+
 export function closeDb(): void {
   if (db) {
     db.close()

backend/src/models/run.ts

@@ -7,6 +7,7 @@ export type RunStatus = 'pending' | 'running' | 'completed' | 'failed'
 export type Run = {
   id: string
   recollectionId: string
+  sceneId?: string | null
   status: RunStatus
   graphSnapshot: string
   createdAt: string

backend/src/repositories/runRepository.ts

@@ -8,8 +8,8 @@ import type { Run, RunStep, RunStatus } from '../models/run.js'
 export function createRun(run: Run): void {
   const db = getDb()
   db.prepare(`
-    INSERT INTO runs (id, recollectionId, status, graphSnapshot, createdAt, updatedAt, error)
-    VALUES (@id, @recollectionId, @status, @graphSnapshot, @createdAt, @updatedAt, @error)
+    INSERT INTO runs (id, recollectionId, sceneId, status, graphSnapshot, createdAt, updatedAt, error)
+    VALUES (@id, @recollectionId, @sceneId, @status, @graphSnapshot, @createdAt, @updatedAt, @error)
   `).run(run)
 }
 

backend/src/routes/runRoutes.ts

@@ -16,7 +16,7 @@ import { executeRun } from '../services/graphRunnerService.js'
  */
 export async function handleCreateRun(req: Request, res: Response): Promise<void> {
   try {
-    const { recollectionId, graph } = req.body
+    const { recollectionId, sceneId, graph } = req.body
 
     if (!recollectionId || typeof recollectionId !== 'string') {
       res.status(400).json({ error: 'recollectionId is required' })
@@ -30,6 +30,7 @@ export async function handleCreateRun(req: Request, res: Response): Promise<void
     const run: Run = {
       id: crypto.randomUUID(),
       recollectionId,
+      sceneId: typeof sceneId === 'string' ? sceneId : null,
       status: 'pending',
       graphSnapshot: JSON.stringify(graph),
       createdAt: new Date().toISOString(),