Updated README/architecture/security/limitations/testing/api/CHANGELOG and the
LaTeX user guide (now 14pp) with the Certificates and HTTP Explorer screens.
0 called Go vulns, npm audit clean.
Capture engine streams dumpcap pcapng into verbatim, hashed segments with
per-segment tshark summaries; display filters, PDML dissection with verified
byte ranges, export and import. Tests run in a Debian trixie container.