fix: gitattributes A2ML linguist override, gitignore AAP locks

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.gitattributes

@@ -16,6 +16,7 @@
 *.hs    text eol=lf
 *.chpl  text eol=lf
 *.scm   text eol=lf
+*.a2ml  text eol=lf linguist-language=TOML
 *.ncl   text eol=lf
 *.nix   text eol=lf
 *.zig   text eol=lf

.gitignore

@@ -75,6 +75,9 @@ htmlcov/
 *.log
 /logs/
 
+# Machine-readable locks
+.machine_readable/.locks/
+
 # Temp
 /tmp/
 *.tmp