Add manual AP mode override via web UI

- State Machine prüft /tmp/babycam-ap-override: 'on'/'off' = manuell, fehlt = Automatik
- Neue API-Endpunkte: POST /ap/on, /ap/off, /ap/auto
- Access-Point-Karte zeigt jetzt 3 Buttons (An / Aus / Auto) + aktuellen Modus
- Manuell überschreibt die Automatik, Auto gibt Kontrolle zurück an die State Machine

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/main.py

@@ -10,6 +10,7 @@ import subprocess
 import json
 import re
 import time
+import os
 from flask import Flask, Response, render_template, request, jsonify
 
 app = Flask(__name__)
@@ -113,6 +114,7 @@ def get_system_status():
         "ips": ips,
         "wifi_ssid": wifi_ssid,
         "ap_active": ap_active,
+        "ap_override": get_ap_override(),
         "cam_available": cam_available,
         "uptime": _get_uptime(),
     }
@@ -159,6 +161,34 @@ def wifi_scan():
     return jsonify(get_wifi_networks())
 
 
+@app.route("/ap/<action>", methods=["POST"])
+def ap_control(action):
+    override_file = "/tmp/babycam-ap-override"
+    if action == "on":
+        with open(override_file, "w") as f:
+            f.write("on")
+        return jsonify({"success": True, "mode": "on"})
+    elif action == "off":
+        with open(override_file, "w") as f:
+            f.write("off")
+        return jsonify({"success": True, "mode": "off"})
+    elif action == "auto":
+        try:
+            os.remove(override_file)
+        except FileNotFoundError:
+            pass
+        return jsonify({"success": True, "mode": "auto"})
+    return jsonify({"success": False, "error": "Unbekannte Aktion"}), 400
+
+
+def get_ap_override():
+    try:
+        with open("/tmp/babycam-ap-override") as f:
+            return f.read().strip().lower()
+    except FileNotFoundError:
+        return "auto"
+
+
 @app.route("/wifi/connect", methods=["POST"])
 def wifi_connect():
     data = request.get_json()

app/templates/index.html

@@ -219,10 +219,18 @@
     </div>
     <div class="card">
       <label>Access Point</label>
-      <div class="value">
+      <div class="value" style="display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;">
         <span class="badge {{ 'on' if status.ap_active else 'off' }}">
           {{ "aktiv" if status.ap_active else "aus" }}
         </span>
+        <span style="font-size:.75rem;color:#666;">
+          {{ {"on":"manuell an","off":"manuell aus","auto":"automatisch"}[status.ap_override] }}
+        </span>
+      </div>
+      <div style="display:flex;gap:.4rem;margin-top:.6rem;flex-wrap:wrap;">
+        <button onclick="setAP('on')"  class="{{ 'primary' if status.ap_override == 'on' else '' }}" style="font-size:.75rem;padding:.3rem .7rem;">An</button>
+        <button onclick="setAP('off')" class="{{ 'primary' if status.ap_override == 'off' else '' }}" style="font-size:.75rem;padding:.3rem .7rem;">Aus</button>
+        <button onclick="setAP('auto')"class="{{ 'primary' if status.ap_override == 'auto' else '' }}" style="font-size:.75rem;padding:.3rem .7rem;">Auto</button>
       </div>
     </div>
     <div class="card">
@@ -281,6 +289,12 @@
     document.getElementById("wifi-password").focus();
   }
 
+  async function setAP(action) {
+    const res = await fetch(`/ap/${action}`, { method: "POST" });
+    const data = await res.json();
+    if (data.success) setTimeout(() => location.reload(), 800);
+  }
+
   async function connectWifi() {
     if (!selectedSSID) return;
     const password = document.getElementById("wifi-password").value;

scripts/network_state.py

@@ -2,15 +2,21 @@
 """
 Babycam Network State Machine
 Verwaltet die drei Betriebsmodi:
-  A – Heimnetz (wlan0 verbunden)
+  A – Heimnetz (wlan0 verbunden, AP aus)
-  B – Kein WLAN (AP auf wlan1)
+  B – Kein WLAN (AP auf wlan1 automatisch)
   C – Setup-Modus (AP läuft, User konfiguriert WLAN)
+
+Override-Datei: /tmp/babycam-ap-override
+  "on"  → AP immer an (manuell)
+  "off" → AP immer aus (manuell)
+  fehlt → Automatik
 """
 
 import subprocess
 import time
 import logging
 import sys
+import os
 
 logging.basicConfig(
     level=logging.INFO,
@@ -23,21 +29,30 @@ AP_INTERFACE = "wlan1"
 CLIENT_INTERFACE = "wlan0"
 AP_IP = "192.168.50.1"
 CHECK_INTERVAL = 30  # Sekunden
+OVERRIDE_FILE = "/tmp/babycam-ap-override"
 
 
 def run(cmd, check=False):
-    result = subprocess.run(
+    result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
-        cmd, shell=True, capture_output=True, text=True
-    )
     if check and result.returncode != 0:
         log.error(f"Fehler bei: {cmd}\n{result.stderr}")
     return result
 
 
+def get_override():
+    """Liest die manuelle Override-Einstellung. Gibt 'on', 'off' oder None zurück."""
+    try:
+        with open(OVERRIDE_FILE) as f:
+            val = f.read().strip().lower()
+            if val in ("on", "off"):
+                return val
+    except FileNotFoundError:
+        pass
+    return None
+
+
 def is_wlan0_connected():
-    result = run(
+    result = run(f"nmcli -t -f GENERAL.STATE device show {CLIENT_INTERFACE}")
-        f"nmcli -t -f GENERAL.STATE device show {CLIENT_INTERFACE}"
-    )
     return "100 (connected)" in result.stdout
 
 
@@ -68,12 +83,31 @@ def main():
     current_mode = None
 
     while True:
+        override = get_override()
         connected = is_wlan0_connected()
         ap_running = is_ap_running()
 
+        if override == "on":
+            # Manuell: AP immer an
+            if current_mode != "MANUAL_ON":
+                log.info("Modus: Manuell – Access Point erzwungen AN.")
+                if not ap_running:
+                    start_ap()
+                current_mode = "MANUAL_ON"
+
+        elif override == "off":
+            # Manuell: AP immer aus
+            if current_mode != "MANUAL_OFF":
+                log.info("Modus: Manuell – Access Point erzwungen AUS.")
+                if ap_running:
+                    stop_ap()
+                current_mode = "MANUAL_OFF"
+
+        else:
+            # Automatik
             if connected:
                 if current_mode != "A":
-                log.info("Modus A: Heimnetz aktiv.")
+                    log.info("Modus A: Heimnetz aktiv – AP aus.")
                     if ap_running:
                         stop_ap()
                     current_mode = "A"