Remove subscription levels; license valid = subscribed

src/network/license_service.h

@@ -5,11 +5,8 @@
 
 namespace radiantwave::license {
 
-// NOTE: the system_kv keys where the validated subscription level is persisted
-// live in db/db_keys.h (KV_SUBSCRIPTION_LEVEL_*).
-
 enum class Result {
-    Ok,            // license valid; subscription level persisted to the DB
+    Ok,            // license valid; subscription active
     NotConfigured, // email and/or license key missing from the DB
     Invalid,       // API rejected the pair (bad key, wrong user, inactive, ...)
     NetworkError,  // the request never completed
@@ -22,29 +19,16 @@ enum class Result {
 constexpr long long GRACE_PERIOD_SECONDS = 7LL * 24 * 60 * 60;
 
 // Validates the stored license key against the stored email address via the
-// portal API. On success the subscription level (id/name/description) is
-// written to the DB; on failure the stored level is left untouched so a
+// portal API. A successful validation is the device's "subscribed" flag — no
+// separate subscription state is tracked. On failure nothing is written, so a
 // previous good value survives a transient outage. Returns NotConfigured
 // without touching the network when either value is missing. Never throws.
 //
-// `outLevelName` / `outErrorMessage` are optional out-params.
+// `outErrorMessage` is an optional out-param.
 Result validateStoredLicense(radiantwave::db::DatabaseManager& db,
                              const std::string& apiKey = "",
-                             std::string* outLevelName = nullptr,
                              std::string* outErrorMessage = nullptr);
 
-// Returns the subscription level id currently stored after a successful
-// license validation. Returns 0 when no validated license is on record.
-int getStoredSubscriptionLevelId(const radiantwave::db::DatabaseManager& db);
-
-// Human-readable name for a subscription level id (Basic / Advanced / Elite).
-// Falls back to a generic label for unknown ids.
-std::string subscriptionLevelName(int levelId);
-
-// Numeric id for a subscription level name (case-insensitive match against
-// Basic / Advanced / Elite). Returns 0 for an unknown or empty name.
-int subscriptionLevelIdForName(const std::string& name);
-
 // Records the current time as the "last verified" stamp of the license. Called
 // after every successful server validation so the offline grace window starts
 // (or is extended) from the most recent confirmation.