fix(package): vendor grammar WASM so installs need no native toolchain

[pkieltyka]

tree-sitter-solidity@1.2.13 misspells its optional-peer metadata key as tree_sitter, so npm reads tree-sitter as a required peer, installs the native binding, and compiles it from source — which fails against Node >= 23 V8 headers ("C++20 or later required"). That broke npm install -g @0xsequence/codegenie and the GitHub Action for every consumer as soon as 0.5.0 added the Solidity grammar. pnpm hid it locally: pnpm-workspace.yaml already ignores the missing peer and denies those builds, and the consumer test ran under that same policy, so the npm path was never exercised.

codegenie parses through web-tree-sitter and needs only the published WASM, so the grammar packages become devDependencies and the build vendors their WASM into bundled-grammars/. Every installed dependency is now pure JavaScript.

• scripts/copy-grammars.mjs vendors the 7 grammars at build time
• tree-sitter-service resolves the bundled copy, falling back to the devDependency so a fresh checkout parses before its first build
• new test walks the prod closure and fails on any native install hook, binding.gyp, or peer that npm would treat as required
• new test pins every documented action tag to the package version

Verified with a real npm install -g on Node 26 with scripts enabled: 119 packages in 4s, no ERESOLVE, no node-gyp, and all 7 grammars parse from the installed package.

[github-actions]

codegenie review

No credible findings.

Coverage

Reviewed 20/25 hunks.
Incomplete work: skipped 5.
Coverage levels: deep 12, normal 5, light 3, skip 5.

• pnpm-lock.yaml: lockfile

Needs Human Attention

• Does make clean removing bundled-grammars/ break any workflow that expects vendored WASM to persist without re-running the copy-grammars build step (e.g. dev flows that run clean then test without build)?
  Files: Makefile, scripts/copy-grammars.mjs
  Symbols: build, clean
  Reason: Packet reviewer could not resolve this question from the reviewed context.

Stats

Model: anthropic claude-opus-5 high
Elapsed time: 8m 42s
Git: 0xPolygon/codegenie from master to ci-up (56e6f6f)
Review completeness: complete.
Usage: model calls 41, tokens 895340, cost $3.5601.
Effective caps: tokens 8000000.
Local context pressure: 2 tool-budget rejections, 19 degraded tool results, 15 degraded hunks.

No Findings

No credible findings were found.

— workflow run