Add automatic project snapshots

src/db/schema/project-snapshots.ts

@@ -5,6 +5,7 @@ import {
   text,
   unique,
 } from "drizzle-orm/sqlite-core";
+import { projectSnapshotKinds } from "../../domain/models/project-snapshot-policy.model.js";
 import { projects } from "./projects.js";
 
 export const projectSnapshots = sqliteTable(
@@ -16,6 +17,9 @@ export const projectSnapshots = sqliteTable(
       .references(() => projects.id, { onDelete: "cascade" }),
     sourceRevision: integer("source_revision").notNull(),
     schemaVersion: integer("schema_version").notNull(),
+    kind: text("kind", { enum: projectSnapshotKinds })
+      .notNull()
+      .default("named"),
     name: text("name").notNull(),
     description: text("description"),
     payloadJson: text("payload_json").notNull(),
@@ -32,5 +36,10 @@ export const projectSnapshots = sqliteTable(
       table.projectId,
       table.createdAtIso
     ),
+    index("project_snapshots_project_kind_revision_idx").on(
+      table.projectId,
+      table.kind,
+      table.sourceRevision
+    ),
   ]
 );