Merge remote-tracking branch 'origin/worktree-process-service-seam' into subprocess-simpl/d-one-env-channel

# Conflicts:
#	docs/cordis-catalog/services.md
#	docs/core-data-structures/subprocess.i18n.yaml
#	packages/lsp/lsp-local/src/connection.ts
#	packages/subagent/subagent-acp/README.i18n.yaml
#	packages/subprocess/subprocess-local/README.i18n.yaml
#	packages/subprocess/subprocess-local/src/spawn.ts
#	packages/subprocess/subprocess/README.i18n.yaml
#	packages/subprocess/subprocess/README.md
#	packages/subprocess/subprocess/README.zh.md
#	packages/subprocess/subprocess/tests/service.spec.ts

packages/subprocess/subprocess/tests/service.spec.ts

@@ -1,7 +1,7 @@
 import { describe, expect, it } from 'vitest'
 import { Context } from 'cordis'
 import { scrubbedParentEnv, SubprocessService } from '@deepseek-ai/dsh-subprocess'
-import type { SubprocessDisposeGraces, SubprocessHandle, SubprocessOutputRead, SubprocessSpawnSpec } from '@deepseek-ai/dsh-subprocess'
+import type { SubprocessHandle, SubprocessOutputRead, SubprocessSpawnSpec } from '@deepseek-ai/dsh-subprocess'
 
 /**
  * Minimal concrete service: a hand-built handle. The seam is spawn-only —
@@ -21,10 +21,8 @@ class StubSubprocessService extends SubprocessService {
       stderr: undefined,
       collected,
       done: Promise.resolve({ exitCode: 0, signal: null }),
-      kill: () => {},
       terminate: () => {},
       waitForExit: () => Promise.resolve(true),
-      dispose: (_graces: SubprocessDisposeGraces) => Promise.resolve(),
     }
   }
 }
@@ -41,10 +39,8 @@ describe('SubprocessService seam', () => {
     })
     expect(handle.pid).toBe(1)
     expect(handle.collected.stdout!.readFrom(0)).toEqual({ text: '', nextOffset: 0, lossy: false })
-    handle.kill()
     handle.terminate()
     await expect(handle.waitForExit()).resolves.toBe(true)
-    await expect(handle.dispose({ eofGraceMs: 1, graceMs: 1 })).resolves.toBeUndefined()
     const outcome = await handle.done
     expect(outcome.exitCode).toBe(0)
   })