fix(cli): avoid unix which in lsp doctor check

src/cli/doctor/checks/lsp.test.ts

@@ -17,6 +17,21 @@ describe("lsp check", () => {
         expect(Array.isArray(s.extensions)).toBe(true)
       })
     })
+
+    it("does not spawn 'which' command (windows compatibility)", async () => {
+      // #given
+      const spawnSpy = spyOn(Bun, "spawn")
+
+      // #when getting servers info
+      await lsp.getLspServersInfo()
+
+      // #then should not spawn which
+      const calls = spawnSpy.mock.calls
+      const whichCalls = calls.filter((c) => Array.isArray(c) && Array.isArray(c[0]) && c[0][0] === "which")
+      expect(whichCalls.length).toBe(0)
+
+      spawnSpy.mockRestore()
+    })
   })
 
   describe("getLspServerStats", () => {

src/cli/doctor/checks/lsp.ts

@@ -12,21 +12,13 @@ const DEFAULT_LSP_SERVERS: Array<{
   { id: "gopls", binary: "gopls", extensions: [".go"] },
 ]
 
-async function checkBinaryExists(binary: string): Promise<boolean> {
+import { isServerInstalled } from "../../../tools/lsp/config"
-  try {
-    const proc = Bun.spawn(["which", binary], { stdout: "pipe", stderr: "pipe" })
-    await proc.exited
-    return proc.exitCode === 0
-  } catch {
-    return false
-  }
-}
 
 export async function getLspServersInfo(): Promise<LspServerInfo[]> {
   const servers: LspServerInfo[] = []
 
   for (const server of DEFAULT_LSP_SERVERS) {
-    const installed = await checkBinaryExists(server.binary)
+    const installed = isServerInstalled([server.binary])
     servers.push({
       id: server.id,
       installed,