Small bug fixes

[AlyaGomaa]

• Fix ip_info startup/pre-main hang by opening DBs synchronously and only scheduling the MAC DB reader when an event loop is running.
• Fix gateway detection.
• handle missing AP Wi-Fi interface data
• use the detected gateway MAC when resolving gateway IP
• only report gateway IPs that belong to the detected local network
• Reduce false positives: skip unknown-port evidence when Zeek reports unknown_transport
• avoid "Multiple user agent" evidence when the same user agent is seen again
• Add Immune PAMP/DAMP metadata support to Slips evidence, alert JSON notes, STIX custom properties, and mark unknown-port evidence as DAMP.
• Update IDMEFv2 documentation/schema links.
• Suppress normal shutdown exceptions (KeyboardInterrupt, SystemExit, CancelledError) in async task/loop handling to avoid noisy Ctrl+C tracebacks.
• Log the Redis and Zeek startup commands to slips.log.
• Cap analyzed-flow progress display at 100%.