Extend browser admin lifecycle actions

Support browser reboot and HTTPS stop through deferred control, plus
exact
`web certificate rotate --force` handoff to the dispatcher. Add typed
request
validation and focused boundary and lifecycle coverage.

tests/admin_console_boundary/fakes.h

@@ -20,7 +20,7 @@ typedef struct {
 typedef unsigned TickType_t;
 typedef void *TaskHandle_t;
 typedef int portMUX_TYPE;
-typedef struct { size_t size; unsigned count; unsigned char bytes[2048]; } StaticQueue_t;
+typedef struct { size_t size; unsigned count, capacity; unsigned char bytes[2048]; } StaticQueue_t;
 typedef StaticQueue_t *QueueHandle_t;
 typedef int StaticSemaphore_t;
 typedef int *SemaphoreHandle_t;
@@ -56,11 +56,13 @@ static void vTaskDelete(TaskHandle_t t) { (void)t; }
 static void xTaskNotifyGive(TaskHandle_t t) { (void)t; }
 static unsigned ulTaskNotifyTake(int b, unsigned t) { (void)b; (void)t; return 1; }
 static QueueHandle_t xQueueCreateStatic(unsigned n, size_t s, uint8_t *b, StaticQueue_t *q)
-{ (void)n; (void)b; q->size = s; return q; }
+{ (void)b; q->size = s; q->capacity = n; assert(n*s <= sizeof(q->bytes)); return q; }
 static int xQueueSend(QueueHandle_t q, const void *p, unsigned t)
-{ (void)t; if (queue_full) return 0; assert(!q->count); memcpy(q->bytes,p,q->size); q->count=1; return 1; }
+{ (void)t; if (queue_full || q->count==q->capacity) return 0;
+  memcpy(q->bytes+q->count*q->size,p,q->size); ++q->count; return 1; }
 static int xQueueReceive(QueueHandle_t q, void *p, unsigned t)
-{ (void)t; if (!q->count) longjmp(loop_done,1); memcpy(p,q->bytes,q->size); q->count=0; return 1; }
+{ (void)t; if (!q->count) longjmp(loop_done,1); memcpy(p,q->bytes,q->size);
+  --q->count; memmove(q->bytes,q->bytes+q->size,q->count*q->size); return 1; }
 static SemaphoreHandle_t xSemaphoreCreateBinaryStatic(StaticSemaphore_t *s) { return s; }
 static int xSemaphoreTake(SemaphoreHandle_t s, unsigned t)
 { assert(!lock_depth); if (t && !*s) { ticks+=t; if (prompt_hook) prompt_hook(); }