Add watch/phone icons and logo, reorder the interpretation report, and stamp every report with the day it's for

interpreter/tests/json_test.c

@@ -1,6 +1,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <string.h>
+#include <time.h>
 
 #include "../src/json.h"
 #include "../src/reading_io.h"
@@ -48,6 +49,7 @@ static void test_json_parse_rejects_malformed(void) {
  * absent entirely, to prove partial spread data doesn't fail the load. */
 static const char *k_fixture =
   "{"
+  "  \"date\": \"2026-07-16\","
   "  \"natal\": {\"bodies\": [{\"body\": \"sun\", \"sign\": \"taurus\", \"house\": 3}], \"houses\": []},"
   "  \"transits\": {"
   "    \"bodies\": [{\"body\": \"sun\", \"sign\": \"cancer\", \"house\": 5}],"
@@ -80,6 +82,30 @@ static void test_reading_load_json_extracts_aspects(void) {
   printf("PASS test_reading_load_json_extracts_aspects\n");
 }
 
+static void test_reading_load_json_extracts_date(void) {
+  DailyReading reading;
+  bool ok = reading_load_json(k_fixture, strlen(k_fixture), &reading);
+
+  assert(ok);
+  struct tm *utc = gmtime(&reading.utc_moment);
+  assert(utc->tm_year + 1900 == 2026);
+  assert(utc->tm_mon + 1 == 7);
+  assert(utc->tm_mday == 16);
+
+  printf("PASS test_reading_load_json_extracts_date\n");
+}
+
+static void test_reading_load_json_missing_date_defaults_to_zero(void) {
+  const char *text = "{\"transits\": {\"aspects\": []}}";
+  DailyReading reading;
+  bool ok = reading_load_json(text, strlen(text), &reading);
+
+  assert(ok);
+  assert(reading.utc_moment == 0);
+
+  printf("PASS test_reading_load_json_missing_date_defaults_to_zero\n");
+}
+
 static void test_reading_load_json_extracts_body_sign_and_house(void) {
   DailyReading reading;
   bool ok = reading_load_json(k_fixture, strlen(k_fixture), &reading);
@@ -178,6 +204,8 @@ int main(void) {
   test_json_parse_basic_shapes();
   test_json_parse_rejects_malformed();
   test_reading_load_json_extracts_aspects();
+  test_reading_load_json_extracts_date();
+  test_reading_load_json_missing_date_defaults_to_zero();
   test_reading_load_json_extracts_body_sign_and_house();
   test_reading_load_json_extracts_spread_positions();
   test_reading_load_json_missing_spread_is_not_fatal();