Tolaria's MCP server is pure ESM with only standard `node:fs|path|http|child_process`
imports and pure-JS dependencies, so Bun can execute it identically to Node.
Until now `find_node()` was the single entry point for spawning the WebSocket
bridge and writing external AI tool config — users with Bun but no Node would
hit "node not found in PATH or common install locations" and lose access to MCP
tools entirely.
Introduce `find_mcp_runtime()` which returns the first verifying runtime,
preferring Node 18+ when present and falling back to Bun 1+. The generic
PATH and login-shell lookup helpers (`find_on_path`, `find_in_user_shell`,
`lookup_command`, `lookup_paths`) are now parameterised by command name so
both runtimes share the same machinery. Bun candidates cover `~/.bun/bin/bun`,
mise/asdf/proto shims, Homebrew, and `%USERPROFILE%\.bun\bin\bun.exe` on
Windows. The Codex CLI and Windows .cmd-shim resolution paths keep using the
strict `find_node()` since they specifically need Node.
`spawn_ws_bridge_with_paths`, `mcp_config_snippet`, and `register_mcp` now
resolve through `find_mcp_runtime` so the runtime that gets registered into
`~/.claude.json`, `~/.gemini/settings.json`, `~/.cursor/mcp.json`, etc.
matches the one actually present on the machine.
Locale copy updated from "nodeRequirement" to "runtimeRequirement" across
all 15 catalogs to reflect "Node.js 18+ or Bun 1+".
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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