- classify and validate measurement tokens in supported formats - query measurement attributes and latest values from PostgreSQL and Redis - add measurement mode support and centralized SQL definitions - register data-object attribute query and update routes - fix logger caller attribution and measurement identifier generation - add tests for token parsing, attribute queries, Redis values, and logging
- change all ChannelSuffix values from uppercase to lowercase - rename ChannelSuffixPS ("PS") to ChannelSuffixPF ("pf") - align channel suffix naming with downstream measurement keys
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