init(config): add initial configuration files

wrangler.jsonc

@@ -0,0 +1,19 @@
+{
+	"$schema": "node_modules/wrangler/config-schema.json",
+	"name": "x-bookmarks-rss",
+	"main": "src/index.ts",
+	"compatibility_date": "2024-09-01",
+	// D1 holds the bookmarks plus a small meta table (OAuth tokens, user id, last_sync).
+	"d1_databases": [
+		{
+			"binding": "DB",
+			"database_name": "x-bookmarks-db",
+			"database_id": "7548c661-37b4-474f-9584-28d1f6a24d55"
+		}
+	],
+	// Non-secret tunables. Secrets (X_CLIENT_ID/SECRET, X_REFRESH_TOKEN) go via `wrangler secret put`.
+	"vars": {
+		"SYNC_TTL_SECONDS": "900",
+		"MAX_ITEMS": "100"
+	}
+}