fix: exclude bazel output directories from all_files glob

The all_files filegroup was including bazel-* symlinks which point
to temporary build artifacts that may not exist, causing build failures.

Exclude bazel-* and .git directories from the glob pattern to prevent
these transient files from being included in the filegroup.

This fixes build errors like:
  missing input file '//:bazel-out/_tmp/actions/stderr-X'

Author: avrabe

BUILD.bazel

@@ -22,7 +22,13 @@ buildifier(
 # Documentation generation
 filegroup(
     name = "all_files",
-    srcs = glob(["**"]),
+    srcs = glob(
+        ["**"],
+        exclude = [
+            "bazel-*/**",
+            ".git/**",
+        ],
+    ),
 )
 
 # Version file for stamping