Phase 7: eliminate shims - consumer files use component headers directly

- Deleted standalone shims: session.c/h, cashu.c/h, mining_payment.c/h, firewall.c/h
- Updated captive_portal.c, tollgate_api.c, tollgate_main.c, mcp_handler.c,
  cvm_server.c, sw_miner.c, stratum_client.c to include component headers
- Moved tollgate_ip4_canforward_filter() lwIP hook into tollgate_main.c
- Fixed all unit tests to use component API (test_cashu, test_session,
  test_mining_payment, test_stratum_proxy, test_session_payment_method,
  test_firewall_sandbox, test_mcp_handler)
- Removed deleted source files from Makefile targets
- All 21 unit tests pass, ESP-IDF build passes

1 files changed, 4 insertions, 5 deletions

diff --git a/main/mcp_handler.c b/main/mcp_handler.c
index 93bfba9..5f5d494 100644
--- a/main/mcp_handler.c
+++ b/main/mcp_handler.c
@@ -1,7 +1,8 @@
 #include "mcp_handler.h"
 #include "config.h"
 #include "nucula_wallet.h"
-#include "session.h"
+#include "tollgate_core_session.h"
+#include "tollgate_core.h"
 #include "cJSON.h"
 #include "lwip/ip4_addr.h"
 #include <string.h>
@@ -157,12 +158,10 @@ mcp_response_t mcp_handle_wallet_send(const char *params_json)
 mcp_response_t mcp_handle_get_sessions(void)
 {
     mcp_response_t resp = {0};
-    extern session_t *cvm_get_sessions_array(void);
-    extern int cvm_get_sessions_count(void);
 
     cJSON *arr = cJSON_CreateArray();
-    int count = cvm_get_sessions_count();
-    session_t *sessions = cvm_get_sessions_array();
+    int count = tollgate_core_session_get_array_size();
+    tg_session_t *sessions = tollgate_core_session_get_array();
 
     if (sessions && count > 0) {
         for (int i = 0; i < count; i++) {