feat(patterns): align manual and auto behaviour

Unify manual/auto timing semantics for key patterns, add preset background support, and improve runtime observability while keeping the driver responsive under beat-triggered selects.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/main.py

@@ -15,30 +15,27 @@ try:
 except ImportError:
     import os
 
+wdt = machine.WDT(timeout=10000)
+wdt.feed()
+
 machine.freq(160000000)
 
 
 settings = Settings()
-print(settings)
 
-wdt = machine.WDT(timeout=10000)
-wdt.feed()
+
 
 gc.collect()
-print("mem before presets:", {"free": gc.mem_free(), "alloc": gc.mem_alloc()})
 
 presets = Presets(settings["led_pin"], settings["num_leds"])
 presets.load(settings)
 presets.b = settings.get("brightness", 255)
 presets.debug = bool(settings.get("debug", False))
 gc.collect()
-print("mem after presets:", {"free": gc.mem_free(), "alloc": gc.mem_alloc()})
 
 default_preset = settings.get("default", "")
 if default_preset and default_preset in presets.presets:
-    if presets.select(default_preset):
-        print(f"Selected startup preset: {default_preset}")
-    else:
+    if not presets.select(default_preset):
         print("Startup preset failed (invalid pattern?):", default_preset)
 
 # On ESP32-C3, soft reboots can leave Wi-Fi driver state allocated.
@@ -54,11 +51,22 @@ sta_if.active(True)
 sta_if.config(pm=network.WLAN.PM_NONE)
 sta_if.connect(settings["ssid"], settings["password"])
 while not sta_if.isconnected():
-    print("Connecting")
+    print("Waiting for network connection...")
     utime.sleep(1)
     wdt.feed()
 
-print(sta_if.ifconfig())
+
+def _print_network_ips(controller_ip=None):
+    """Always log STA address and led-controller (WS client) address when known."""
+    try:
+        led_ip = sta_if.ifconfig()[0]
+    except Exception:
+        led_ip = "?"
+    ctrl = controller_ip if controller_ip else "(not connected)"
+    print("led-driver IP:", led_ip, "  led-controller IP:", ctrl)
+
+
+_print_network_ips()
 
 app = Microdot()
 
@@ -76,7 +84,6 @@ def _safe_pattern_filename(name):
 @app.route("/ws")
 @with_websocket
 async def ws_handler(request, ws):
-    print("WS client connected")
     controller_ip = None
     try:
         client_addr = getattr(request, "client_addr", None)
@@ -86,15 +93,12 @@ async def ws_handler(request, ws):
             controller_ip = client_addr
     except Exception:
         controller_ip = None
-    print("WS controller_ip:", controller_ip)
+    _print_network_ips(controller_ip)
     try:
         while True:
             data = await ws.receive()
             if not data:
-                print("WS client disconnected (closed)")
                 break
-            print("WS recv bytes:", len(data) if isinstance(data, (bytes, bytearray)) else len(str(data)))
-            print(data)
             process_data(data, settings, presets, controller_ip=controller_ip)
     except WebSocketError as e:
         print("WS client disconnected:", e)
@@ -108,7 +112,6 @@ async def upload_pattern(request):
     raw_name = request.args.get("name")
     reload_raw = request.args.get("reload", "1")
     reload_patterns = str(reload_raw).strip().lower() not in ("0", "false", "no", "off")
-    print("patterns/upload request:", {"name": raw_name, "reload": reload_patterns})
 
     if not isinstance(raw_name, str) or not raw_name.strip():
         return json.dumps({"error": "name is required"}), 400, {
@@ -116,15 +119,12 @@ async def upload_pattern(request):
         }
     body = request.body
     if not isinstance(body, (bytes, bytearray)) or not body:
-        print("patterns/upload rejected: empty body")
         return json.dumps({"error": "code is required"}), 400, {
             "Content-Type": "application/json"
         }
-    print("patterns/upload body_bytes:", len(body))
     try:
         code = body.decode("utf-8")
     except UnicodeError:
-        print("patterns/upload rejected: body not utf-8")
         return json.dumps({"error": "body must be utf-8 text"}), 400, {
             "Content-Type": "application/json"
         }
@@ -148,18 +148,15 @@ async def upload_pattern(request):
 
     path = "patterns/" + name
     try:
-        print("patterns/upload writing:", path)
         with open(path, "w") as f:
             f.write(code)
         if reload_patterns:
-            print("patterns/upload reloading patterns")
             presets.reload_patterns()
     except OSError as e:
         print("patterns/upload failed:", e)
         return json.dumps({"error": str(e)}), 500, {
             "Content-Type": "application/json"
         }
-    print("patterns/upload success:", {"name": name, "reloaded": reload_patterns})
 
     return json.dumps({
         "message": "pattern uploaded",
@@ -179,7 +176,6 @@ async def presets_loop():
 async def _udp_hello_after_http_ready():
     """Hello must run after the HTTP server binds, or discovery clients time out on /ws."""
     await asyncio.sleep(1)
-    print("UDP hello: broadcasting…")
     try:
         broadcast_hello_udp(
             sta_if,