TP15: CRS326-Core als L3-Router aktiviert

- crs326-core nimmt Routing/DHCP/DNS/NAT/WAN/WireGuard von ap1 ueber.
- L2-Portplan korrigiert (ap1 #15, Arris WAN #16, branch #8, Sonos #2/3/5/6,
  IoT #14, VLAN10-Access #11, VLAN1-Hybrid #3/7/9/10/12/17-24).
- Backup-RSC gefixt (ether3-24 disabled) und via fixed-RSC eingespielt.
- Gestagede L3-Config enabled in einem Rutsch.
- Falsche statische Default-Route 0.0.0.0/0 -> 10.40.41.1 entfernt,
  WAN-DHCP via 90.146.33.177/24 aktiv.
- SFP-Ports bleiben disabled (Stromersparnis).
- ap1 ist L3-stillgelegt und wird in naechster Session reiner AP.

Backup-Dateien (*.backup) und leases-export.json bleiben lokal.

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

routeros/fix-core-rsc.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+import re
+
+src = "/Users/christophemsenhuber/dev/bf-network-r6/routeros/crs326-core-pre-cutover-20260806-073712.rsc"
+dst = "/Users/christophemsenhuber/dev/bf-network-r6/routeros/crs326-core-pre-cutover-20260806-073712-fixed.rsc"
+
+with open(src) as f:
+    lines = f.readlines()
+
+out = []
+i = 0
+while i < len(lines):
+    line = lines[i]
+    if line.startswith("add admin-mac=04:F4:1C:B4:17:76 auto-mac=no comment=defconf name=bridge"):
+        out.append("set [find name=bridge] admin-mac=04:F4:1C:B4:17:76 auto-mac=no vlan-filtering=yes\n")
+        i += 1
+        while i < len(lines) and (lines[i].startswith("    ") or lines[i].strip().startswith("vlan-filtering")):
+            i += 1
+        continue
+    if re.match(r'set \[ find default-name=ether(3|4|5|6|7|8|9|1[0-9]|2[0-4]) \] disabled=yes', line):
+        i += 1
+        continue
+    if line.startswith("/interface bridge port"):
+        out.append(line)
+        i += 1
+        while i < len(lines) and not lines[i].startswith("/"):
+            i += 1
+        out.append("set [find interface=ether2] pvid=40\n")
+        out.append("set [find interface=ether3] pvid=40\n")
+        out.append("set [find interface=ether5] pvid=40\n")
+        continue
+    out.append(line)
+    i += 1
+
+with open(dst, "w") as f:
+    f.writelines(out)
+print("fixed rsc written to", dst)