feat: enforce client spool quota tiers

internal/client/spool/spool.go

@@ -37,6 +37,7 @@ type Options struct {
 	DataDir        string
 	BusyTimeout    time.Duration
 	TombstoneLimit uint64
+	QuotaLimits    QuotaLimits
 }
 
 type Store struct {
@@ -45,6 +46,7 @@ type Store struct {
 	dataDir        string
 	identity       domain.UUID
 	tombstoneLimit uint64
+	quotaLimits    QuotaLimits
 	mu             sync.Mutex
 }
 
@@ -61,6 +63,12 @@ func Open(ctx context.Context, options Options) (*Store, error) {
 	if options.TombstoneLimit == 0 {
 		options.TombstoneLimit = DefaultTombstoneLimit
 	}
+	if options.QuotaLimits == (QuotaLimits{}) {
+		options.QuotaLimits = DefaultQuotaLimits()
+	}
+	if err := options.QuotaLimits.Validate(); err != nil {
+		return nil, err
+	}
 	if err := ensurePrivateDirectory(options.DataDir); err != nil {
 		return nil, err
 	}
@@ -92,7 +100,7 @@ func Open(ctx context.Context, options Options) (*Store, error) {
 	}
 	db.SetMaxOpenConns(1)
 	db.SetMaxIdleConns(1)
-	store := &Store{db: db, unlock: unlock, dataDir: options.DataDir, identity: identity, tombstoneLimit: options.TombstoneLimit}
+	store := &Store{db: db, unlock: unlock, dataDir: options.DataDir, identity: identity, tombstoneLimit: options.TombstoneLimit, quotaLimits: options.QuotaLimits}
 	if err := db.PingContext(ctx); err != nil {
 		_ = store.Close()
 		return nil, fmt.Errorf("open client spool SQLite: %w", err)