* refactor(ecstore): migrate config globals into ECStore struct fields
Phase 2 of global singleton consolidation. Add server_config and
storage_class fields to ECStore, sharing the same underlying data
as the process-global LazyLock statics.
New ECStore fields:
- server_config: RwLock<Option<Config>>
- storage_class: RwLock<storageclass::Config>
New async accessor methods:
- get_server_config() / set_server_config()
- get_storage_class() / set_storage_class()
Fields initialized with defaults in ECStore::new(), synced from
globals after init() completes. Global functions preserved for
backward compatibility.
1160 tests pass, clippy clean, full workspace compiles.
* fix: address PR #3219 review comments - delegate to globals
Accessors now delegate to process-global statics to avoid state drift:
- get_server_config() delegates to get_global_server_config()
- set_server_config() updates both global and local field
- get_storage_class() delegates to get_global_storage_class()
- set_storage_class() updates both global and local field
- Removed stale sync code from init()
- Changed fields to std::sync::RwLock for sync access
1160 tests pass.
* fix: correct import order for cargo fmt
* fix: simplify config accessors - delegate to globals without local state
Remove local server_config and storage_class fields from ECStore.
Accessors now purely delegate to process-global statics, eliminating
the state drift risk identified in review.
1160 tests pass, formatting clean.
