Add default_plan_ladder_id with a forward data migration and update
the runtime to resolve the ladder's rank-0 tier at use-time. Regenerate
sqlc, update auto-provisioning, ReapplyDefaultsForPool, operator UI and
tests; add GetTierByLadderRank and pool/provision query helpers. Add a
CSP-safe confirm-action modal and wire operator actions to it. Close
plan-sole-writer safety gaps and serialize IssueGrant with a FOR UPDATE
pool lock to prevent ladder races.
- Add SQL queries and generated methods for Create/List/Update products
- Add CountWorkspacesByOrgID and ListResourceKeys querier methods
- Register workspace partials and operator routes for products and sets
- Add workspace UI section and operator tabs; tweak grant/site forms
- Replace isValidDNSLabel with validateDNSLabel for site validation
