PR summary

Part of #45 (lint leftover from import PR #44): replaces super-linter's bundled clang-format with upstream WasmEdge's own clang-format method, so PRs stop failing clang-format on imported/generated/test paths and the clang-format version is pinned (no more drift). Supersedes #46, which used a super-linter FILTER_REGEX_EXCLUDE workaround.

Implementation design

• .github/scripts/clang-format.sh — copied from upstream WasmEdge/WasmEdge verbatim except targets="plugins" (the only first-party C/C++ tree in this repo). Lints plugins/, pipes through grep -v "/thirdparty/", runs clang-format -Werror --dry-run. test/ is intentionally not format-checked, matching upstream.
• .github/workflows/clang-format.yml — installs a pinned clang-format-22 (the version current upstream master uses) from apt.llvm.org and runs the script. Mirrors upstream's reusable-call-linter.yml install steps, adapted to this repo's workflow conventions (pull_request → main, actions/checkout@v7, minimal permissions).
• super-linter.yml — drop VALIDATE_CLANG_FORMAT; super-linter keeps markdown, yaml, commitlint, github-actions, gitleaks.

Design decisions

• Follow the WasmEdge solution rather than a super-linter exclude hack. Upstream lints only include lib tools plugins examples minus thirdparty/, never test/, with a pinned clang-format. Mapping that to this repo (only plugins/ is first-party) resolves all three feat: import plugin sources, tests, and CI utils from WasmEdge core #44 failures structurally — thirdparty/wasi_crypto/api.hpp (generated), test/plugins/wasm_bpf/assets/ (fixtures), and test/plugins/wasi_crypto/asymmetric.cpp (test code) all fall outside scope — and pins the version so drift can't recur.
• clang-format-22: matches current upstream master. Verified locally that all 347 in-scope plugins/ files are already clean under it, so no reformatting commit is needed.
• .clang-format already matches upstream (BasedOnStyle: LLVM, IndentWidth: 2) — confirmed byte-identical, so there is no style-config divergence to reconcile.

Commit slicing

Single commit: ci: adopt WasmEdge clang-format lint method (#45).

Test plan

• bash .github/scripts/clang-format.sh "$(which clang-format-22)" exits 0 locally against plugins/ (347 files in scope, 0 reformatted)
• .clang-format confirmed identical to upstream WasmEdge
• CI: this PR's new clang-format job runs green (the workflow validates itself on this PR)
• CI: super-linter still green with clang-format removed

Non-goals / afterwards

• The docs: import guidelines for future re-imports + PR #44 leftovers #45 import-guidelines doc (docs/IMPORTING.md) is a separate leftover, not in this PR
• Supersedes ci: exclude imported thirdparty and wasm_bpf fixtures from super-linter #46 — needs a human decision to close it; see the comment below

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