[Bug]: npm install -g @minimax-ai/code prints deprecation warning for prebuild-install@7.1.3 (transitive via better-sqlite3@12.11.1)

Inspect the package manifest's optionalDependencies and verify-native-install.mjs, the postinstall smoke test that runs SELECT 1 AS value. Reproduce the global install warning, then verify that the chosen dependency change or removal eliminates the deprecation warning while the smoke test still passes.

What happened

Running npm install -g @minimax-ai/code (or npm update -g) prints a deprecation warning for a transitive dependency. The warning is noise today, but prebuild-install is officially unmaintained, so future Node or prebuild-mirror changes could turn this into a real install failure.

npm warn deprecated prebuild-install@7.1.3: No longer maintained. Please contact the author of the relevant native addon; alternatives are available.

Where it comes from

The deprecated package is pulled in transitively via better-sqlite3, which @minimax-ai/code lists as an optionalDependency:

@minimax-ai/code@0.1.6
  └─ optionalDependencies
     └─ better-sqlite3@12.11.1
        └─ prebuild-install@7.1.3   ← deprecated, unmaintained

better-sqlite3 is only used by verify-native-install.mjs (the postinstall smoke test that runs SELECT 1 AS value). The main cli.js and matrix-mcp-stdio.js do not require("better-sqlite3").

Environment

• MCode CLI: 0.1.6 (npm @minimax-ai/code)
• npm: 11.10.0
• Node.js: 22.22.0 (within the supported range >=22.19 <23 || >=24 <27)
• OS: Windows 11 家庭中文版 (build 26200)
• Install command: npm install -g @minimax-ai/code

Steps to reproduce

1. Uninstall any prior copy: npm uninstall -g @minimax-ai/code
2. npm install -g @minimax-ai/code
3. Read the npm output

Expected behavior

No deprecation warnings. better-sqlite3 is only used for a one-line postinstall smoke test, so carrying an unmaintained transitive dep is not worth the cost.

Suggested fix

Either of these would clear the warning with no behavior change:

1. Bump optionalDependencies.better-sqlite3 to ^13.0.0. better-sqlite3@13.x drops prebuild-install entirely (only node-addon-api remains), ships prebuilds via the package exports field, and requires Node ≥ 22, which already matches MCode's supported Node range.

2. Drop better-sqlite3 from optionalDependencies (and verify-native-install.mjs) if the runtime doesn't actually need it. I checked the installed bundle — the only consumer of better-sqlite3 is the postinstall smoke test.

I tested option 1 locally on Windows 11: the smoke test still passes with better-sqlite3@13.0.3 (SELECT 1 AS value returns { value: 1 }), and npm install no longer prints any deprecation warning.