Add load statements after disabling autoloads

[mbland]

Explicitly loads all symbols affected by
--incompatible_disable_autoloads_in_main_repo to fix last_green Bazel builds. Adds the flag to .bazelrc, adds rules_shell as a dependency, and contains lots of other Buildifier formatting touch ups.

bazelbuild/bazel@d87eaf5 from 2025-05-08 at 8:03am EDT flipped
--incompatible_disable_autoloads_in_main_repo to true to prepare for Bazel 9. See also bazel-contrib/rules_scala#1738.

Before this change, setting the flag caused these errors:

$ bazel build --incompatible_disable_autoloads_in_main_repo //...

ERROR: java/com/engflow/notificationqueue/demoserver/BUILD:5:1:
  name 'proto_library' is not defined
ERROR: /demoserver/BUILD:10:1:
  name 'java_proto_library' is not defined (did you mean 'java_grpc_library'?)
ERROR: docker/network/BUILD:19:10: //docker/network:docker-network-test:
  no such attribute 'srcs' in 'java_test' rule
ERROR: docker/network/BUILD:19:10: //docker/network:docker-network-test:
  no such attribute 'test_class' in 'java_test' rule
ERROR: docker/sandbox/BUILD:15:12: //docker/sandbox:hello-java:
  no such attribute 'srcs' in 'java_binary' rule
ERROR: docker/sandbox/BUILD:15:12: //docker/sandbox:hello-java:
  no such attribute 'main_class' in 'java_binary' rule
ERROR: docker/sysbox/dind_test/BUILD:15:1:
  name 'sh_test' is not defined (did you mean 'cc_test'?)
ERROR: package contains errors: docker/sysbox/dind_test
ERROR: python/pytest/BUILD:3:1:
  name 'py_library' is not defined (did you mean 'cc_library'?)
ERROR: package contains errors: docker/sandbox
ERROR: package contains errors: java/com/engflow/notificationqueue/demoserver
ERROR: docker/network/BUILD:39:13: //docker/network:jdk:
  no such attribute 'java_home' in 'java_runtime' rule
ERROR: package contains errors: docker/network
ERROR: package contains errors: python/pytest
ERROR: java/com/engflow/example/BUILD:3:13: //java/com/engflow/example:example:
  no such attribute 'srcs' in 'java_library' rule
ERROR: java/com/engflow/example/BUILD:8:10: //java/com/engflow/example:ExampleTest:
  no such attribute 'srcs' in 'java_test' rule
ERROR: java/com/engflow/example/BUILD:8:10: //java/com/engflow/example:ExampleTest:
  no such attribute 'deps' in 'java_test' rule
ERROR: package contains errors: java/com/engflow/example
ERROR: java/com/engflow/notificationqueue/BUILD:5:12: //java/com/engflow/notificationqueue:client:
  no such attribute 'srcs' in 'java_binary' rule
ERROR: java/com/engflow/notificationqueue/BUILD:5:12: //java/com/engflow/notificationqueue:client:
  no such attribute 'main_class' in 'java_binary' rule
ERROR: java/com/engflow/notificationqueue/BUILD:5:12: //java/com/engflow/notificationqueue:client:
  no such attribute 'deps' in 'java_binary' rule
ERROR: package contains errors: java/com/engflow/notificationqueue
WARNING: Target pattern parsing failed.
ERROR: Skipping '//...': Error evaluating '//...':
  error loading package 'docker/network':
  Package 'docker/network' contains errors
ERROR: Error evaluating '//...':
  error loading package 'docker/network':
  Package 'docker/network' contains errors
INFO: Elapsed time: 2.821s
INFO: 0 processes.
ERROR: Build did NOT complete successfully

Applied the fixes using Buildifier 8.2.0 with the following script:

WARNINGS=(
  $(buildifier --lint=warn -r . 2>&1 | grep -- native- |
    awk '{print $2}' | sort | uniq | sed -e 's/:$//')
)

IFS=, WARNINGS="${WARNINGS[*]}"
echo "warnings: ${WARNINGS}"
buildifier --lint=fix --warnings="$WARNINGS" -r .