wa-activity-collector

Analyse a single tracked target's WhatsApp probe data. Pulls live from the GCP server's SQLite (WAL-safe — does not interrupt collection), separates target-side acks (delivery type) from our own collector account's echo acks (sender type), classifies the target's actual physical devices into fast/phone bands by RTT signature, decomposes phone RTTs into behavioural states (foreground/screen-off/etc.), and emits a clean human-readable presence timeline in NL local time. Triggers include "analyse <name>", "show timeline for <name>", "what was <name> doing", "decompose <name>'s activity", "/analyse-target <name>".