feat(server): 'seed' subcommand wiring the Spectrum cataloguing seed (#14)

crates/server/src/lib.rs

@@ -117,6 +117,31 @@ pub mod test_support {
     }
 }
 
+/// One-shot: apply migrations (idempotent), then seed the baseline Spectrum cataloguing
+/// vocabularies + field definitions. Safe to re-run (the seed is idempotent).
+pub async fn seed(database_url: &str) -> anyhow::Result<()> {
+    // CLI one-shot: a tiny pool is plenty.
+    let db = Db::connect(database_url, 2)
+        .await
+        .context("connecting to the database")?;
+
+    // Apply migrations first so `server seed` works on a fresh DB without first
+    // starting the server. Migrations are idempotent.
+    db.migrate().await.context("running database migrations")?;
+
+    let mut tx = db.pool().begin().await?;
+
+    db::seed::seed_spectrum_cataloguing(&mut tx)
+        .await
+        .context("seeding Spectrum cataloguing baseline")?;
+
+    tx.commit().await?;
+
+    println!("seeded Spectrum cataloguing baseline (idempotent)");
+
+    Ok(())
+}
+
 /// Create a user from the CLI (admin bootstrap). Opens its own connection (CLI
 /// one-shot); reads the password from the `BOOTSTRAP_PASSWORD` env var if set,
 /// otherwise prompts (hidden input). The plaintext is not zeroized, but it is