config: add k_veer bazel config for veer platform setup

.bazelrc

diff --git a/.bazelrc b/.bazelrc
index 98938f8..ca05246 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -104,6 +104,11 @@
   --timeout 0 "
 test:stress_k_ast1060_evb   --test_env=AST1060_EVB_PI_HOST
 
+# ── VeeR RISC-V kernel target ──
+# Platform setup for building //target/veer/* artifacts.
+common:k_veer --platforms=//target/veer:veer
+build:k_veer --build_tag_filters=-do_not_build,-kernel_doc_test
+
 # Site-local overrides. Kept last so developer machine-specific settings (e.g. a
 # local QEMU source override via --override_repository) take precedence. This
 # file is not checked in; see third_party/qemu/setup.md.