chore(qsl): align canonical metadata

Co-Authored-By: Codex <noreply@openai.com>

Author: Pigbibi

README.md

@@ -3,7 +3,7 @@
 
 ## QSL architecture role
 
-- **Layer**: `strategy-library`.
+- **Layer**: `strategy-lib`.
 - **Responsibility**: sidecar strategy plugin package.
 - **Owns**: plugin contracts, market-regime controls, notification/research plugin outputs.
 - **Consumes**: QuantPlatformKit and strategy/pipeline consumers.

qsl.toml

@@ -1,5 +1,5 @@
-tier = "strategy-library"
-ring = 1
+tier = "strategy-lib"
+upgrade_ring = "ring_b"
 
 [compat]
 bundle = "2026.07.1"