invalidateServiceCache

Clears the platform's cached GATT service table for the connected peripheral, so the next discovery re-reads the device instead of replaying the cache. Necessary when a device reboots into a different GATT profile (e.g., ESP32 OTA loader) on the same BLE MAC, and as recovery when a bonded device that was out of range for a long time reconnects against a cache the platform never refreshed.

Requires a live connection: the implementation needs the platform's connection handle, so callers must invoke this while connected and then reconnect to pick up the fresh service table.

Returns true if the cache was invalidated. Default implementation returns false for platforms without a service cache.