fix(e2b): close remote lifecycle gaps

packages/e2b/lsp-e2b/src/index.ts

@@ -200,6 +200,16 @@ export async function readE2BSource(
   return { canonicalPath, text }
 }
 
+/**
+ * Encode one absolute remote Linux path as a host-independent file URI.
+ * @param path - Canonical POSIX path inside E2B.
+ * @returns The equivalent percent-encoded file URI.
+ */
+export function e2bFileUri(path: string): string {
+  if (!posix.isAbsolute(path)) throw new Error(`lsp-e2b: expected an absolute remote path, received ${JSON.stringify(path)}`)
+  return `file://${path.split('/').map(segment => encodeURIComponent(segment)).join('/')}`
+}
+
 /* jscpd:ignore-start -- Provider identity mirrors the seam while remote source and process ownership stay local. */
 /** One pooled remote provider with an isolated server per canonical workspace. */
 export class E2BLspProvider implements LspProvider {
@@ -298,6 +308,7 @@ export class E2BLspProvider implements LspProvider {
       shutdownTimeoutMs: this.config.shutdownTimeoutMs,
       killGraceMs: this.config.killGraceMs,
       clientProcessId: null,
+      pathToFileUri: e2bFileUri,
     }, (spec: SubprocessSpawnSpec) => {
       const originalArgv = Buffer.from(JSON.stringify(spec.argv)).toString('base64')
       const inner = this.subprocess.spawn({

packages/e2b/lsp-e2b/tests/provider.spec.ts

@@ -69,6 +69,7 @@ import {
   E2BLspProvider,
   apply,
   canonicalizeE2BWorkspace,
+  e2bFileUri,
   readE2BSource,
 } from '@deepseek-ai/dsh-lsp-e2b'
 import type { LspE2BServerConfig } from '@deepseek-ai/dsh-lsp-e2b'
@@ -234,6 +235,10 @@ describe('E2BLspProvider pooling and lifecycle', () => {
     await expect(current.query(query())).resolves.toEqual({ kind: 'hover', hover: { contents: 'ok' } })
     expect(mockedLsp.FakeLspInstance.instances).toHaveLength(1)
     expect(mockedLsp.FakeLspInstance.instances[0]?.spec).toMatchObject({ clientProcessId: null, cwd: '/workspace' })
+    expect(e2bFileUri('/workspace/a b#c.ts')).toBe('file:///workspace/a%20b%23c.ts')
+    expect(() => e2bFileUri('relative.ts')).toThrow('absolute remote path')
+    const pathToFileUri = mockedLsp.FakeLspInstance.instances[0]?.spec.pathToFileUri as (path: string) => string
+    expect(pathToFileUri('/workspace/a b#c.ts')).toBe('file:///workspace/a%20b%23c.ts')
     expect(spawn).toHaveBeenCalledWith(expect.objectContaining({
       argv: ['/usr/bin/node', '/workspace/.dsh-e2b/lsp-proxy.mjs', expect.any(String)],
       stdio: { stdin: 'pipe', stdout: 'pipe', stderr: { maxBytes: 128 } },