chore: trim obsolete logFilters from .yarnrc.yml

The suppressed peer-dep warnings (YN0060/YN0002/YN0068/YN0086) and their comment
referenced @lshay/ui, expo-three and @expo/cli — all removed in the cleanup.
Dropping the filters surfaces the remaining warnings, which are now legitimate
signals about the apps/api stack (drizzle vs better-auth peer ranges), not noise.

.yarnrc.yml

@@ -1,16 +1,2 @@
 nodeLinker: node-modules
 nmMode: hardlinks-global
-
-# These peer dep warnings are from upstream packages with stale ranges that
-# work fine with our versions. @lshay/ui declares react 18 / tailwindcss 3
-# but works with 19 / 4; expo-three uses old expo SDK ranges;
-# @expo/cli still requests the deprecated @types/react-native.
-logFilters:
-  - code: YN0060
-    level: discard
-  - code: YN0002
-    level: discard
-  - code: YN0068
-    level: discard
-  - code: YN0086
-    level: discard