Pulse v0.1.0-indev.5

The stable candidate. Nothing new to install for the sake of features; this build settles the last two metric names before the 0.1.0 release freezes them as a contract, and it ships behind the day's real-world validation.

Renamed, if you already built panels on the indev.4 names:

• pulse_server_tick_busy_seconds_avg is now pulse_server_tick_busy_seconds.
• pulse_network_packets_in_window{channel} and pulse_network_bytes_in_window{channel} are now pulse_network_packets_per_second{channel} and pulse_network_bytes_per_second{channel}, and the values are rates: the engine's completed window divided by its nominal two seconds. A dashboard wants a rate, and the name no longer leaks an engine internal.

Everything else is identical to v0.1.0-indev.4. Since that tag, the OTLP path was exercised against the official OpenTelemetry collector receiving live batches from a standalone server, on top of the existing fake-collector scenario.

Unless testing turns something up, 0.1.0 stable will be this build with the version stamp and no other change. Test bar: 126 unit tests, 20 embedded-server scenarios, 31 mutations, all green in CI from the tag.