AutoHeaders: migrate to explicit headers (batches 113-115)

Summary:
Finish Angliru, Callm, CEA, RFLib, Folly, ExecuTorch, Deeplearning, Avatar, and Comms by declaring their inferred headers and removing their parent AutoHeaders opt-ins. Keep shared-wrapper changes with their callers, including the FRL and X3D prerequisites. Preserve existing globs, aliases, and selector behavior; remove redundant Folly and RFLib header references. Declare the IPNext capacity observer Flags header in its own push surface. This is part of the stack that deletes AutoHeaders from the fbcode macros.

Authored with Codex.

Reviewed By: IanChilds

Differential Revision: D123477636

Author: 8Keep

backends/apple/coreml/targets.bzl

@@ -109,7 +109,7 @@ def define_common_targets(is_fbcode = False):
             ],
             headers = glob([
                 "runtime/inmemoryfs/**/*.hpp",
-            ]),
+            ]) + ["runtime/util/json_util.hpp"],
             base_module = "executorch.backends.apple.coreml",
             compiler_flags = [
                 "-std=c++17",

extension/llm/runner/targets.bzl

@@ -1,4 +1,4 @@
-load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "get_aten_mode_options", "runtime")
+load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "is_xplat", "get_aten_mode_options", "runtime")
 
 def define_common_targets():
     runtime.cxx_library(
@@ -148,6 +148,7 @@ def define_common_targets():
                 "llm_runner_helper.cpp",
                 "multimodal_runner.cpp",
             ],
+            headers = ["multimodal_runner.h"] if not runtime.is_oss and not is_xplat() else [],
             visibility = ["PUBLIC"],
             compiler_flags = [
                 "-Wno-missing-prototypes",

extension/pybindings/BUCK

@@ -91,6 +91,9 @@ fbcode_target(
     _kind = cpp_python_extension,
     name = "data_loader",
     srcs = ["pybindings_data_loader.cpp"],
+    headers = [
+        "pybindings_data_loader.h",
+    ],
     base_module = "executorch.extension.pybindings",
     deps = [
         ":data_loader_types",

runtime/platform/targets.bzl

@@ -1,5 +1,5 @@
 load("@fbsource//xplat/executorch/build:build_variables.bzl", "PLATFORM_SRCS")
-load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
+load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "is_xplat", "runtime")
 load(":log.bzl", "get_et_logging_flags")
 
 def _select_pal(dict_):
@@ -75,6 +75,7 @@ def define_common_targets():
             "compat_unistd.h",
         ],
         srcs = PLATFORM_SRCS,
+        headers = ["platform.h"] if not runtime.is_oss and not is_xplat() else [],
         exported_preprocessor_flags = get_profiling_flags() + get_et_logging_flags(),
         exported_deps = [
             "//executorch/runtime/platform:pal_interface",