cloud: enable workspace slots for partners

packages/db/migrations/20260529123231_DropPartnerLicenseKeyUniqueConstraint.sql

@@ -0,0 +1 @@
+DROP INDEX IF EXISTS "subscription_partner_license_key_idx";

packages/db/migrations/meta/_journal.json

@@ -239,6 +239,13 @@
       "when": 1778617946519,
       "tag": "20260512203226_AddPartnerLicenseToSubscription",
       "breakpoints": true
+    },
+    {
+      "idx": 34,
+      "version": "7",
+      "when": 1780057951781,
+      "tag": "20260529123231_DropPartnerLicenseKeyUniqueConstraint",
+      "breakpoints": true
     }
   ]
 }