Here are the classes, structs, unions and interfaces with brief descriptions:

Canom_entry_t
Ceth_receipt_expect_t	What a receipt must show for the payment to count — see eth_json_receipt_check
Ceth_tx_t	EIP-1559 (type 2) transaction parameters
Cinflight_t
Cnet_wifi_ap_t	A scanned access point (subset of fields the UI needs)
CNullLogger
Cpb_field_t	One field: its number and either its varint or its payload range
Cpb_t	Cursor over a hex byte string; positions count BYTES, not nibbles
Cpos_addr_t
Cpos_amount_t
Cpos_asset_t	One selectable asset
Cpos_hw_t	The card stack pos_boot() brought up; lives for the program
Cpos_net_info_t	Names for one network, in both deployments
Cresp_hdrs_t	Response headers captured during fetch (see http_event_cb)
Csale_fee_t
Ctoken_cfg_t
Ctoken_t	A token's contract, dual-stored
Ctouch_cal_t
Ctouch_jump_t
Ctron_tx_ctx_t	A created-and-verified transfer, ready to sign and broadcast
Cui_msg_t
CUiLock
CWipeGuard	Scrubs a buffer with CW_Utils::secure_wipe when it leaves scope