refactor(relay): delete the SSH relay server, its build assets and tests (#27215)

* wip: delete the SSH relay server and its build, assets and tests

* wip: drop main/relay plugin conformance; WSL reader lookup test

* fix: drop the emptied relay bench; prune baselines

* test: keep the native halves of tests that also covered the relay

* chore(ci): drop shard timings for the deleted relay server tests

* fix: keep the directory listing budget that darwin terminal names now import

---------

Co-authored-by: m4air <m4air@Mac.localdomain>

.github/workflows/performance-contracts.yml

@@ -22,7 +22,6 @@ on:
       - 'src/main/codex-usage/scanner-incremental-append.test.ts'
       - 'src/main/usage/jsonl-file-reader.test.ts'
       - 'src/main/usage/jsonl-file-snapshot.test.ts'
-      - 'src/relay/fs-path-metadata-symlink-concurrency.test.ts'
       - 'src/renderer/src/components/editor/rich-markdown-list-tokenizers.test.ts'
       - 'src/renderer/src/components/editor/rich-markdown-lowlight-cache.test.ts'
       - 'src/renderer/src/components/terminal-pane/agent-completion-coordinator-queued-inspection-disposal.test.ts'

.github/workflows/pr.yml

@@ -503,8 +503,7 @@ jobs:
               pnpm exec vitest run --config config/vitest.config.ts \
               src/shared/git-binary-compatibility.test.ts \
               src/main/git/worktree-safety-real-git.test.ts \
-              src/main/git/worktree-rebase-update-refs-real-git.test.ts \
-              src/relay/git-review-draft-binary-compatibility.test.ts
+              src/main/git/worktree-rebase-update-refs-real-git.test.ts
           ) &
           pids+=("$!")
 
@@ -516,8 +515,7 @@ jobs:
                 pnpm exec vitest run --config config/vitest.config.ts \
                 src/shared/git-binary-compatibility.test.ts \
                 src/main/git/worktree-safety-real-git.test.ts \
-                src/main/git/worktree-rebase-update-refs-real-git.test.ts \
-                src/relay/git-review-draft-binary-compatibility.test.ts
+                src/main/git/worktree-rebase-update-refs-real-git.test.ts
             ) &
             pids+=("$!")
           done
@@ -792,7 +790,6 @@ jobs:
             src/main/terminal-history-fish-session.node-pty.test.ts \
             src/main/zsh-scoped-histfile.live-shell.test.ts \
             src/main/zsh-startup-hook-user-config-equivalence.live-shell.test.ts \
-            src/main/zsh-wrapper-version-mismatch.live-shell.test.ts \
             src/main/runtime/structured-session-cli-login-shell.live-shell.test.ts \
             src/renderer/src/components/terminal-pane/fish-color-scheme-child-stdin.node-pty.test.ts \
             src/shared/fish-query-reply-child-stdin.node-pty.test.ts \
@@ -969,17 +966,11 @@ jobs:
 
       - uses: ./.github/actions/install-node-dependencies
 
-      - name: Build relay companions
-        run: pnpm run build:relay
-
       - name: Setup Node 18 runtime
         uses: actions/setup-node@v6
         with:
           node-version: '18'
 
-      - name: Smoke managed-hook companions
-        run: node config/scripts/smoke-managed-hook-runtime-node18.mjs
-
       # The process-host package declares engines >=18; load its staged public output on Node 18.
       - name: Smoke process-host package
         run: node config/scripts/smoke-process-host-node18.mjs
@@ -1270,9 +1261,7 @@ jobs:
           src/main/ipc/pty-spawn-env-codex-resume-provenance.test.ts
           src/main/ipc/preflight-provider-command-selection.test.ts
           src/main/ipc/preflight-runnable-local-cli.test.ts
-          src/relay/windows-port-scan.win32.test.ts
           src/main/ssh/remote-node-runtime-store-windows.test.ts
-          config/scripts/node-pty-windows-pty-teardown-patch.test.mjs
 
       # Why the :parallel variant: identical to build:release except the three
       # electron-vite targets overlap instead of running back to back. The Linux package

.github/workflows/release-cut.yml

@@ -1520,12 +1520,6 @@ jobs:
           node config/scripts/runtime-file-watcher-fault-harness.mjs
           ELECTRON_RUN_AS_NODE=1 pnpm exec electron config/scripts/runtime-file-watcher-fault-harness.mjs
 
-      - name: Gate SSH relay watcher process isolation
-        run: |
-          # Why: the remote native watcher shares a daemon with live PTYs.
-          # Kill only its child and require both PTY and watch recovery before packaging.
-          node config/scripts/relay-watcher-fault-harness.mjs
-
       # Why: main ships minified with sourcemap:'hidden' and packaging drops
       # out/**/*.map from app.asar, so a crash trace from a released build is
       # otherwise undecodable. The main bundle is platform-independent, so one

.github/workflows/release-mac-build.yml

@@ -195,12 +195,6 @@ jobs:
           node config/scripts/runtime-file-watcher-fault-harness.mjs
           ELECTRON_RUN_AS_NODE=1 pnpm exec electron config/scripts/runtime-file-watcher-fault-harness.mjs
 
-      - name: Gate SSH relay watcher process isolation
-        run: |
-          # Why: the remote native watcher shares a daemon with live PTYs.
-          # Kill only its child and require both PTY and watch recovery before packaging.
-          node config/scripts/relay-watcher-fault-harness.mjs
-
       - name: Abort if the parent release-cut run was cancelled
         # Why: this workflow is dispatched separately, so cancelling release-cut
         # does not stop mac `--publish always`. A cancelled parent left v1.4.206

.github/workflows/ssh-hostile-hosts.yml

@@ -16,7 +16,6 @@ on:
       - 'src/main/ssh/ssh-remote-*'
       - 'src/main/ssh/ssh-hostile-host-*'
       - 'src/main/ssh/sftp-*'
-      - 'src/relay/**'
       - 'src/wsl-guest/**'
       - 'src/shared/node-runtime-pin.ts'
       - 'src/shared/orcad-artifacts.ts'

.github/workflows/ssh-windows-hosts.yml

@@ -17,7 +17,6 @@ on:
       - 'src/main/ssh/ssh-hostile-host-*'
       - 'src/main/ssh/ssh-windows-host-*'
       - 'src/main/ssh/ssh-session-command-audit.ts'
-      - 'src/relay/**'
       - 'src/wsl-guest/**'
       - 'src/packages/process-host/**'
       - 'pnpm-workspace.yaml'
@@ -35,7 +34,6 @@ on:
       - 'config/patches/node-pty*'
       - 'config/patches/@vscode__windows-process-tree*'
       - 'config/scripts/build-windows-process-tree-relay-addon.mjs'
-      - 'config/scripts/relay-windows-process-tree-staging.mjs'
       - 'config/scripts/relay-windows-process-tree-prepared-addon*.mjs'
       - 'config/scripts/windows-process-tree-gyp-rebuild.mjs'
       - 'src/shared/relay-windows-breakaway-launch.ts'