Import ESP_UniClock (upstream 1189810)

Vendored from https://github.com/gpeter62/ESP_UniClock: the sketch
source, the web UI and the libraries the ESP8266 build needs, unpacked
from the bundled zips. Adds a PlatformIO project for the ESP-12. The
source is unchanged; local changes follow as separate commits.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

firmware/uniclock/lib/ESPAsyncWiFiManager/examples/AutoConnectWithStaticIP/AutoConnectWithStaticIP.ino

@@ -0,0 +1,81 @@
+#include <FS.h>                   //this needs to be first, or it all crashes and burns...
+
+#if defined(ESP8266)
+#include <ESP8266WiFi.h>          //https://github.com/esp8266/Arduino
+#else
+#include <WiFi.h>
+#endif
+
+//needed for library
+#include <ESPAsyncWebServer.h>
+#include <ESPAsyncWiFiManager.h>         //https://github.com/tzapu/WiFiManager
+
+AsyncWebServer server(80);
+DNSServer dns;
+
+
+/**************************************************************************************
+ * this example shows how to set a static IP configuration for the ESP
+ * although the IP shows in the config portal, the changes will revert
+ * to the IP set in the source file.
+ * if you want the ability to configure and persist the new IP configuration
+ * look at the FS examples, which save the config to file
+ *************************************************************************************/
+
+
+
+//default custom static IP
+//char static_ip[16] = "10.0.1.59";
+//char static_gw[16] = "10.0.1.1";
+//char static_sn[16] = "255.255.255.0";
+
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(115200);
+  Serial.println();
+
+  //WiFiManager
+  //Local intialization. Once its business is done, there is no need to keep it around
+  AsyncWiFiManager wifiManager(&server,&dns);
+
+  //reset settings - for testing
+  //wifiManager.resetSettings();
+
+  //set static ip
+  //the commented bit only works for ESP8266 core 2.1.0 or newer
+  /*IPAddress _ip,_gw,_sn;
+  _ip.fromString(static_ip);
+  _gw.fromString(static_gw);
+  _sn.fromString(static_sn);
+*/
+  IPAddress _ip = IPAddress(10, 0, 1, 78);
+  IPAddress _gw = IPAddress(10, 0, 1, 1);
+  IPAddress _sn = IPAddress(255, 255, 255, 0);
+
+  wifiManager.setSTAStaticIPConfig(_ip, _gw, _sn);
+
+
+  //tries to connect to last known settings
+  //if it does not connect it starts an access point with the specified name
+  //here  "AutoConnectAP" with password "password"
+  //and goes into a blocking loop awaiting configuration
+  if (!wifiManager.autoConnect("AutoConnectAP", "password")) {
+    Serial.println("failed to connect, we should reset as see if it connects");
+    delay(3000);
+    ESP.reset();
+    delay(5000);
+  }
+
+  //if you get here you have connected to the WiFi
+  Serial.println("connected...yeey :)");
+
+
+  Serial.println("local ip");
+  Serial.println(WiFi.localIP());
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+
+
+}