Default name = MAC; brief wake on boot; drop dead touch defences

- Seed viewport_name with the full base MAC, colons stripped
  (e8:f6:0a:e0:90:94 → "e8f60ae09094"). Stable across reboots, globally
  unique, 12 alphanumeric chars — well inside the mDNS hostname limit
  even with the "viewport-" prefix.
- Add a mac_str field to viewport_state and expose it as the new "mac"
  key in GET /state and as a "mac" line on the info screen.
- "Configured" no longer requires a viewport_name (it always has the
  MAC default); the scrypted URL alone gates outbound POSTs and the
  loading-vs-info screen choice.
- Strip viewport_name[0] fallbacks in http_api / mdns / local_screens
  now that the field is never empty.
- Replace the wake-on-boot-stays-on behaviour with a ~600 ms flash
  followed by sleep — long enough for the FT5426 touch IC to come out
  of its initial unresponsive state, short enough that an idle device
  doesn't burn the backlight.
- Drop the touch defensive cruft added when we were chasing a PoE-power
  theory: the DEV_MODE=0x00 write at init, the touch_reset_pulse() call
  at init, and the runtime wedge-self-heal in the polling loop didn't
  actually fix anything — the wake-on-boot flash did. Also delete the
  display_touch_reset_pulse() helper since it now has zero callers.

1 files changed, 12 insertions, 14 deletions

diff --git a/main/nvs_config.c b/main/nvs_config.c
index 7f7586c..8ba2078 100644
--- a/main/nvs_config.c
+++ b/main/nvs_config.c
@@ -58,20 +58,18 @@ esp_err_t nvs_config_load(void)
 
     err = ESP_OK;
 
-    // A device is "configured" only once both name and Scrypted URL are set.
-    if (st->viewport_name[0] && st->scrypted_url[0]) {
-        st->configured = true;
-        st->state      = VIEWPORT_STATE_ASLEEP;  // configured devices boot asleep
-        ESP_LOGI(TAG, "loaded config: viewport=%s scrypted=%s "
-                      "idle_ms=%u orient=%s bright=%u",
-                 st->viewport_name, st->scrypted_url,
-                 (unsigned)st->idle_timeout_ms,
-                 st->orientation == VIEWPORT_ORIENTATION_LANDSCAPE
-                     ? "landscape" : "portrait",
-                 st->brightness);
-    } else {
-        ESP_LOGI(TAG, "partial config in NVS — viewport or scrypted URL still missing");
-    }
+    // "Configured" = a scrypted URL has been registered. viewport_name
+    // always has a value (MAC-derived default seeded in viewport_state_init).
+    st->configured = (st->scrypted_url[0] != '\0');
+    ESP_LOGI(TAG, "loaded config: viewport=%s scrypted=%s "
+                  "idle_ms=%u orient=%s bright=%u (%s)",
+             st->viewport_name,
+             st->scrypted_url[0] ? st->scrypted_url : "(none)",
+             (unsigned)st->idle_timeout_ms,
+             st->orientation == VIEWPORT_ORIENTATION_LANDSCAPE
+                 ? "landscape" : "portrait",
+             st->brightness,
+             st->configured ? "configured" : "no scrypted URL");
 
 done:
     viewport_state_unlock();