perf(storage): converge Wave 2 hot-path optimizations (#6065)

* perf(get): share inline shards and lock clients

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

* perf(ecstore): converge PUT encoding on contiguous blocks

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

* perf(get): cache codec streaming gate config

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

* fix(sse): redact projected customer headers

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

* perf(ecstore): collapse GET metadata snapshots

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

* perf(ecstore): reuse decode stripe scratch

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

* refactor(ecstore): trim decode scratch adapters

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

* test(ecstore): adapt transition checks to metadata snapshots

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

* perf(get): release metadata snapshots at ownership boundary

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

* refactor(ecstore): close cumulative fast-path findings

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

* fix(storage): preserve lock and header invariants

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

* test(ecstore): adapt cumulative paths after rebase

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

* fix(rio-v2): adapt generated metadata fixture

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

---------

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

crates/ecstore/src/store/mod.rs

@@ -389,7 +389,7 @@ impl crate::storage_api_contracts::object::ObjectIO for ECStore {
     type GetObjectReader = GetObjectReader;
     type PutObjectReader = PutObjReader;
 
-    #[instrument(level = "debug", skip(self))]
+    #[instrument(level = "debug", skip(self, h))]
     async fn get_object_reader(
         &self,
         bucket: &str,