Feature request: Add an optional “Hide CONTROL packets” checkbox to the packet monitor #96

Summary

Add a clearly visible Hide CONTROL packets checkbox to the packet monitor so users can reduce visual noise when they are not investigating control traffic.

This is an opt-in display preference: CONTROL packets must remain visible by default. The checkbox must be unchecked for users without a saved preference.

Motivation

CONTROL packets can make the packet monitor harder to scan during normal use. They still provide useful information for discovery and signal diagnostics, so users should be able to hide them temporarily without losing access to the data.

Requested behavior

• Add a checkbox labelled Hide CONTROL packets.
• Leave it unchecked by default, retaining the current behavior.
• When checked, hide CONTROL packets from both the historical list and incoming live traffic.
• When unchecked, show CONTROL packets again, subject to the other active filters.
• Persist both checked and unchecked choices across reloads, and respect existing packet-type filter selections.
• Keep direct links to individual CONTROL packets accessible, even when the display filter is enabled.

Scope

This is a packet-monitor display feature only. Do not change packet ingestion, database retention, statistics, or anomaly detection.

Acceptance criteria

• A user without a saved preference sees CONTROL packets and an unchecked checkbox.
• Toggling the checkbox updates the current list without requiring a page reload and applies consistently to subsequent live updates.
• The selected preference survives a reload, including an explicit unchecked choice.
• Other packet types and existing filters continue to behave as expected.
• Historical loading and pagination remain usable when CONTROL packets are hidden; filtering must not strand the user on an empty page when matching packets are available.
• Direct packet links remain usable, and no collected data is discarded.