Initial commit: BF Core-Switch-Prep + VLAN-Architektur + Delegations-Übergabe

- ALL-SG8316M auf FW 2.2.1.2956 geflasht; VLAN-DB 10/20/30/40/100 via Telnet-CLI (non-disruptiv)
- CLI-Tooling: run-cli.exp + .cli-Files + CLI-REFERENCE (FW 2.2.1, IOS-artig)
- Kanonisches Inventar: bf.csv/md + build.py (Doku-Motor), Core-Port-Map
- Finaler VLAN-/Adressplan (10.40.<vlanid>.0/24), Firmware-Runbooks, Recovery-Assets
- Secrets/Firmware/State/DS_Store via .gitignore ausgeschlossen

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

switch/recovery/com.bf.switchrecoveryip.plist

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>Label</key>
+    <string>com.bf.switchrecoveryip</string>
+    <key>ProgramArguments</key>
+    <array>
+        <string>/usr/local/sbin/switch-recovery-ip.sh</string>
+    </array>
+    <key>RunAtLoad</key>
+    <true/>
+    <key>StandardErrorPath</key>
+    <string>/var/log/switch-recovery-ip.log</string>
+</dict>
+</plist>