Create reusable PFE production profiling skill

Create a user-level Pi skill for repeatable Playfield Engine production diagnostics. Scope: - Safe preflight and collection of one heap dump plus one managed CPU/GC/allocation trace. - Persistent remote packaging, eight-stream resumable download, checksums, health verification, and cleanup. - Offline managed/native/trace analysis and comparable baseline reporting. - Distill evidence rules and PFE-specific findings from prior capture rounds without generic filler. Acceptance criteria: - Skill is installed in a user-level discovery path, not the engines repository. - Scripts are parameterized, syntax-checked, and do not contain credentials. - Trace summarizer builds and runs against an existing production trace. - Native arena analysis reproduces established production totals.