add ramdisk, load AI model to ramdisk and start recognition from it

rewrite zmq to DEALER and ROUTER
add GET_USER command to get CurrentUser from Python
all auth is on the python side
inference run and validate annotations on python

Azaion.AI/constants.pyx

@@ -1,6 +1,4 @@
-cdef str SOCKET_HOST = "127.0.0.1"           # Host for the socket server
-cdef int SOCKET_PORT = 9127                  # Port for the socket server
-cdef int SOCKET_BUFFER_SIZE = 4096           # Buffer size for socket communication
+cdef int ZMQ_PORT = 5127                  # Port for the zmq
 
 cdef int QUEUE_MAXSIZE = 1000           # Maximum size of the command queue
 cdef str COMMANDS_QUEUE = "azaion-commands"
@@ -10,3 +8,5 @@ cdef str API_URL = "https://api.azaion.com"  # Base URL for the external API
 cdef str TOKEN_FILE = "token"
 cdef str QUEUE_CONFIG_FILENAME = "secured-config.json"
 cdef str AI_MODEL_FILE = "azaion.pt"
+
+cdef bytes DONE_SIGNAL = b"DONE"