fix(ecstore): harden HotPath profiling boundaries (#5555)

* test(hotpath): gate mimalloc heap test by platform

Co-Authored-By: heihutu <heihutu@gmail.com>

* fix(ecstore): attribute HotPath CPU measurements to impls

Co-Authored-By: heihutu <heihutu@gmail.com>

* feat(ecstore): trace raw shard I/O with HotPath

Co-Authored-By: heihutu <heihutu@gmail.com>

* fix(obs): redact profiler and OPA endpoint diagnostics

Co-Authored-By: heihutu <heihutu@gmail.com>

* fix(ecstore): settle encoded queue accounting

Co-Authored-By: heihutu <heihutu@gmail.com>

* fix(ecstore): abort encoder producer on cancellation

Co-Authored-By: heihutu <heihutu@gmail.com>

---------

Co-authored-by: heihutu <heihutu@gmail.com>

Cargo.lock

@@ -9813,6 +9813,7 @@ dependencies = [
  "hotpath",
  "jiff",
  "libc",
+ "log",
  "metrics",
  "num_cpus",
  "nvml-wrapper",
@@ -9848,6 +9849,7 @@ dependencies = [
  "tracing-error",
  "tracing-opentelemetry",
  "tracing-subscriber",
+ "url",
  "zstd",
 ]
 
@@ -9879,6 +9881,7 @@ dependencies = [
  "time",
  "tokio",
  "tracing",
+ "tracing-subscriber",
 ]
 
 [[package]]