procscope v0.1.0 — first release

A Go process can profile itself and search its own logs, returning the answer
as a value rather than serving it on a port -- which is the one thing you
cannot reach when you most need it.

pprofcapture: eight profile kinds, protobuf or text. Block and mutex profiling
arm themselves for a bounded window and restore the process-global knobs
exactly, including the case where another caller already enabled them.

logsearch: searches the slog-configurator ring by structured attribute rather
than by substring, so it works in JSON or text and finds attributes bound
upstream via With. Counts matches before paging, bounds the page, and truncates
a pathological line on a rune boundary.

No transport, no Prometheus, no MCP SDK. Nothing enabled at rest.