Fix seed script paths outside the image; document full local dev flow

scripts/seed.mjs

@@ -10,7 +10,7 @@
  *
  * Required env: PB_SUPERUSER_EMAIL, PB_SUPERUSER_PASSWORD. Optional: PB_URL.
  */
-import { readFileSync } from 'node:fs'
+import { existsSync, readFileSync } from 'node:fs'
 import { dirname, join } from 'node:path'
 import { fileURLToPath } from 'node:url'
 
@@ -24,7 +24,16 @@ if (!EMAIL || !PASSWORD) {
   process.exit(0)
 }
 
-const content = JSON.parse(readFileSync(join(here, 'content.json'), 'utf8'))
+// Inside the image content.json sits next to this script; in the repo it lives
+// with the frontend sources.
+const contentPath = [join(here, 'content.json'), join(here, '../app/src/data/content.json')].find(
+  (path) => existsSync(path),
+)
+if (!contentPath) {
+  console.error('[seed] content.json not found — nothing to seed')
+  process.exit(1)
+}
+const content = JSON.parse(readFileSync(contentPath, 'utf8'))
 
 async function auth() {
   const res = await fetch(`${PB_URL}/api/collections/_superusers/auth-with-password`, {