Merge remote-tracking branch 'origin/rrc-pdusession-handling-improvements' into integration_2025_w39 (!3513)

Improvements to RRC PDU session and DRB handling logic

This merge request introduces a major simplification and cleanup of the gNB RRC
PDU Sessions and DRBs handling logic. The core goals of this work are to:

- Replace fixed-size PDU Session, DRBs and QoS arrays with dynamic containers
- Simplify and modularize helper functions for session/DRB management
- Prepare for further refactoring of the PDU Session state machine
- Improve code safety and maintainability through better bounds checking

CMakeLists.txt

@@ -1167,6 +1167,7 @@ set(L2_NR_SRC
   ${NR_RRC_DIR}/rrc_gNB.c
   ${NR_RRC_DIR}/mac_rrc_dl_direct.c
   ${NR_RRC_DIR}/mac_rrc_dl_f1ap.c
+  ${NR_RRC_DIR}/rrc_gNB_asn1.c
   ${NR_RRC_DIR}/rrc_gNB_nsa.c
   ${NR_RRC_DIR}/rrc_gNB_UE_context.c
   ${NR_RRC_DIR}/rrc_gNB_NGAP.c
@@ -1893,6 +1894,7 @@ target_link_libraries(nr-cuup PRIVATE
                       CONFIG_LIB ITTI SCTP_CLIENT
                       GTPV1U e1ap f1ap
                       time_management
+                      alg
                       z dl pthread shlib_loader ${T_LIB})
 target_link_libraries(nr-cuup PRIVATE asn1_lte_rrc_hdrs asn1_nr_rrc_hdrs)
 if(E2_AGENT)