Phase 6e-6f: Break circular dependencies

6e: Extract tls_worker queue from tollgate_api.c into shared tls_worker.c/h
    - mint_health.c no longer includes tollgate_api.h
    - tollgate_api.c no longer defines tls_worker functions
    - Clean circular dependency broken

6f: Move payout_config_t from lightning_payout.h to config.h
    - config.h no longer includes lightning_payout.h
    - lightning_payout.h includes config.h for types
    - Reverse dependency broken

All 21 unit tests pass. ESP-IDF build passes.

14 files changed, 70 insertions, 63 deletions

diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt
index da90967..3a8613d 100644
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -17,6 +17,7 @@ idf_component_register(SRCS "tollgate_main.c"
                             "mcp_handler.c"
                             "cvm_server.c"
                             "mint_health.c"
+                            "tls_worker.c"
                             "display.c"
                             "font.c"
                             "local_relay.c"
diff --git a/main/config.h b/main/config.h
index 3092306..c501f1a 100644
--- a/main/config.h
+++ b/main/config.h
@@ -5,8 +5,32 @@
 #include "esp_wifi.h"
 #include "esp_netif.h"
 #include <stdbool.h>
+#include <stdint.h>
 
-#include "lightning_payout.h"
+#define PAYOUT_MAX_RECIPIENTS     4
+#define PAYOUT_MAX_MINTS          3
+#define PAYOUT_MAX_ADDR_LEN       128
+
+typedef struct {
+    char lightning_address[PAYOUT_MAX_ADDR_LEN];
+    double factor;
+} payout_recipient_t;
+
+typedef struct {
+    char url[256];
+    uint64_t min_balance;
+    uint64_t min_payout_amount;
+} payout_mint_config_t;
+
+typedef struct {
+    bool enabled;
+    payout_mint_config_t mints[PAYOUT_MAX_MINTS];
+    int mint_count;
+    payout_recipient_t recipients[PAYOUT_MAX_RECIPIENTS];
+    int recipient_count;
+    uint64_t fee_tolerance_pct;
+    int check_interval_s;
+} payout_config_t;
 
 #define TOLLGATE_MAX_WIFI_NETWORKS 5
 #define TOLLGATE_MAX_MINT_URLS     8
diff --git a/main/lightning_payout.h b/main/lightning_payout.h
index d353902..7aea61b 100644
--- a/main/lightning_payout.h
+++ b/main/lightning_payout.h
@@ -1,34 +1,7 @@
 #ifndef LIGHTNING_PAYOUT_H
 #define LIGHTNING_PAYOUT_H
 
-#include "esp_err.h"
-#include <stdint.h>
-#include <stdbool.h>
-
-#define PAYOUT_MAX_RECIPIENTS     4
-#define PAYOUT_MAX_MINTS          3
-#define PAYOUT_MAX_ADDR_LEN       128
-
-typedef struct {
-    char lightning_address[PAYOUT_MAX_ADDR_LEN];
-    double factor;
-} payout_recipient_t;
-
-typedef struct {
-    char url[256];
-    uint64_t min_balance;
-    uint64_t min_payout_amount;
-} payout_mint_config_t;
-
-typedef struct {
-    bool enabled;
-    payout_mint_config_t mints[PAYOUT_MAX_MINTS];
-    int mint_count;
-    payout_recipient_t recipients[PAYOUT_MAX_RECIPIENTS];
-    int recipient_count;
-    uint64_t fee_tolerance_pct;
-    int check_interval_s;
-} payout_config_t;
+#include "config.h"
 
 esp_err_t lightning_payout_init(const payout_config_t *config);
 
diff --git a/main/mint_health.c b/main/mint_health.c
index 4ed8a19..d309731 100644
--- a/main/mint_health.c
+++ b/main/mint_health.c
@@ -1,4 +1,5 @@
 #include "mint_health.h"
+#include "tls_worker.h"
 #include "esp_log.h"
 #include "esp_http_client.h"
 #include "esp_crt_bundle.h"
@@ -7,7 +8,6 @@
 #include "freertos/semphr.h"
 #include "freertos/queue.h"
 #include "nucula_wallet.h"
-#include "tollgate_api.h"
 #include <string.h>
 #include <stdlib.h>
 
diff --git a/main/tls_worker.c b/main/tls_worker.c
new file mode 100644
index 0000000..1c3a7ef
--- /dev/null
+++ b/main/tls_worker.c
@@ -0,0 +1,31 @@
+#include "tls_worker.h"
+#include "nucula_wallet.h"
+#include "esp_log.h"
+#include <string.h>
+#include <stdlib.h>
+
+static const char *TAG = "tls_worker";
+static QueueHandle_t s_wallet_queue = NULL;
+
+void tls_worker_set_queue(QueueHandle_t q)
+{
+    s_wallet_queue = q;
+}
+
+void tls_worker_submit(const char *token)
+{
+    if (!s_wallet_queue) {
+        ESP_LOGW(TAG, "No wallet queue, receiving synchronously");
+        nucula_wallet_receive(token);
+        return;
+    }
+
+    char *copy = strdup(token);
+    if (!copy) return;
+
+    if (xQueueSend(s_wallet_queue, &copy, pdMS_TO_TICKS(1000)) != pdTRUE) {
+        ESP_LOGW(TAG, "Wallet queue full, receiving synchronously");
+        nucula_wallet_receive(copy);
+        free(copy);
+    }
+}
diff --git a/main/tls_worker.h b/main/tls_worker.h
new file mode 100644
index 0000000..013dea5
--- /dev/null
+++ b/main/tls_worker.h
@@ -0,0 +1,10 @@
+#ifndef TLS_WORKER_H
+#define TLS_WORKER_H
+
+#include "freertos/FreeRTOS.h"
+#include "freertos/queue.h"
+
+void tls_worker_set_queue(QueueHandle_t q);
+void tls_worker_submit(const char *token);
+
+#endif
diff --git a/main/tollgate_api.c b/main/tollgate_api.c
index be753ea..4e9de43 100644
--- a/main/tollgate_api.c
+++ b/main/tollgate_api.c
@@ -13,6 +13,7 @@
 #include "mining_payment.h"
 #include "stratum_proxy.h"
 #include "stratum_client.h"
+#include "tls_worker.h"
 #include "esp_log.h"
 #include "esp_system.h"
 #include "cJSON.h"
@@ -25,31 +26,6 @@
 static const char *TAG = "tollgate_api";
 static httpd_handle_t s_api_server = NULL;
 
-static QueueHandle_t s_wallet_queue = NULL;
-
-void tls_worker_set_queue(QueueHandle_t q)
-{
-    s_wallet_queue = q;
-}
-
-static void tls_worker_submit(const char *token)
-{
-    if (!s_wallet_queue) {
-        ESP_LOGW(TAG, "No wallet queue, receiving synchronously");
-        nucula_wallet_receive(token);
-        return;
-    }
-
-    char *copy = strdup(token);
-    if (!copy) return;
-
-    if (xQueueSend(s_wallet_queue, &copy, pdMS_TO_TICKS(1000)) != pdTRUE) {
-        ESP_LOGW(TAG, "Wallet queue full, receiving synchronously");
-        nucula_wallet_receive(copy);
-        free(copy);
-    }
-}
-
 static esp_err_t get_client_ip(httpd_req_t *req, uint32_t *ip_out)
 {
     int sockfd = httpd_req_to_sockfd(req);
diff --git a/main/tollgate_api.h b/main/tollgate_api.h
index 2af4b8c..23e0d75 100644
--- a/main/tollgate_api.h
+++ b/main/tollgate_api.h
@@ -6,6 +6,5 @@
 
 esp_err_t tollgate_api_start(void);
 void tollgate_api_stop(void);
-void tls_worker_set_queue(QueueHandle_t q);
 
 #endif
diff --git a/tests/unit/stubs/tollgate_api.h b/tests/unit/stubs/tollgate_api.h
index 7e20fce..88292da 100644
--- a/tests/unit/stubs/tollgate_api.h
+++ b/tests/unit/stubs/tollgate_api.h
@@ -1,11 +1,4 @@
 #ifndef STUB_TOLLGATE_API_H
 #define STUB_TOLLGATE_API_H
 
-#include "freertos/queue.h"
-
-static inline void tls_worker_set_queue(QueueHandle_t q)
-{
-    (void)q;
-}
-
 #endif
diff --git a/tests/unit/test_beacon_price b/tests/unit/test_beacon_price
index a9f6357..5e4bf90 100755
--- a/tests/unit/test_beacon_price
+++ b/tests/unit/test_beacon_price
diff --git a/tests/unit/test_firewall_sandbox b/tests/unit/test_firewall_sandbox
index 7e5aa6d..0c3aa59 100755
--- a/tests/unit/test_firewall_sandbox
+++ b/tests/unit/test_firewall_sandbox
diff --git a/tests/unit/test_market b/tests/unit/test_market
index 8efac8e..d68ab15 100755
--- a/tests/unit/test_market
+++ b/tests/unit/test_market
diff --git a/tests/unit/test_session_payment_method b/tests/unit/test_session_payment_method
index 44cafd3..258fb01 100755
--- a/tests/unit/test_session_payment_method
+++ b/tests/unit/test_session_payment_method
diff --git a/tests/unit/test_tollgate_client_mining b/tests/unit/test_tollgate_client_mining
index d331bd1..750c145 100755
--- a/tests/unit/test_tollgate_client_mining
+++ b/tests/unit/test_tollgate_client_mining