fix(daemon): launch LSP servers with caller env

src/daemon.ts

@@ -14,6 +14,7 @@ import {
   tryConnect,
   type DaemonRequest,
   type DaemonResponse,
+  type LaunchContext,
 } from "./daemonProtocol.ts";
 
 // Default Idle TTL - 5 minutes. Per-server overrides via ServerConfig.idleTtlMs.
@@ -52,7 +53,10 @@ function log(...args: unknown[]) {
 // Get Or Create Entry - Looks up the cached client for a file, spawning a
 // fresh LspClient if needed. The returned entry is guaranteed to have its
 // `ready` promise resolved before the caller uses it.
-async function getOrCreateEntry(filePath: string): Promise<ClientEntry> {
+async function getOrCreateEntry(
+  filePath: string,
+  launch: LaunchContext,
+): Promise<ClientEntry> {
   const server = pickServer(filePath);
   const rootDir = findRoot(filePath, server.rootMarkers);
   const key = `${server.id}::${rootDir}`;
@@ -72,7 +76,7 @@ async function getOrCreateEntry(filePath: string): Promise<ClientEntry> {
     client,
     ready: (async () => {
       log(`spawn`, server.id, rootDir);
-      await client.start(rootDir);
+      await client.start(rootDir, launch.env);
       await client.waitForReady();
       log(`ready`, server.id);
     })(),
@@ -157,7 +161,7 @@ async function handle(req: DaemonRequest): Promise<DaemonResponse> {
     switch (req.op) {
       case "request": {
         const filePath = path.resolve(req.file);
-        const entry = await getOrCreateEntry(filePath);
+        const entry = await getOrCreateEntry(filePath, req.launch);
         const { uri } = await syncFile(entry, filePath);
         bumpIdle(entry);
         const result = await entry.client.sendRequest(
@@ -168,7 +172,7 @@ async function handle(req: DaemonRequest): Promise<DaemonResponse> {
       }
       case "diagnostics": {
         const filePath = path.resolve(req.file);
-        const entry = await getOrCreateEntry(filePath);
+        const entry = await getOrCreateEntry(filePath, req.launch);
         const { uri, changed } = await syncFile(entry, filePath);
         bumpIdle(entry);
         if (changed) entry.client.clearDiagnostics(uri);