chore(codeowners): drop wildcard to stop Dependabot review pings

Author: hyperpolymath

.github/CODEOWNERS

@@ -3,9 +3,8 @@
 #
 # CODEOWNERS — gitbot-fleet
 
-# Default owner for all files
-* @hyperpolymath
-
+# Default owner for all files
+
 # Core orchestration (security-critical — taint flow validated)
 /fleet-coordinator.sh @hyperpolymath
 /scripts/ @hyperpolymath
@@ -23,4 +22,4 @@
 /SECURITY.md @hyperpolymath
 
 # Machine-readable metadata
-/.machine_readable/ @hyperpolymath
+/.machine_readable/ @hyperpolymath