Add a USER-scoped `/box/terminal` WebSocket that acquires the user's box
and opens a login shell rooted at `~`. Extract the shared real-TTY PTY
bridging (buffered input, dockerode exec/start, resize, forward, cleanup)
out of the job `bridge()` into `runShellBridge`, parameterized by how the
box is acquired, the working directory, and the env; `bridge()` and the
new `bridgeBox()` both call it so the job path is unchanged.
The `/box/terminal` upgrade reads the username FROM the token
(`parseBoxTokenUsername`, part[2] of the 4-part token), then verifies the
whole token with `verifyBoxTerminalToken`; on success `bridgeBox` derives
`boxHomePaths(username)`, seeds a minimal `.bash_profile` via a shared
`ensureBashProfile` (extracted from `materializeUserHome`), acquires the
box, and opens the shell at `containerHome` with `TERM`+`HOME` only (no
per-job secrets). Cleanup releases the box handle.
Manual verification (dockerode PTY I/O is daemon-dependent):
- `bun run test:unit` 105 passed (incl. new `parseBoxTokenUsername` tests),
`bun run typecheck` clean.
- Raw upgrade against a live server: valid box token -> `101 Switching
Protocols`; bad token -> refused (no upgrade). Job `/jobs/:id/terminal`
branch unchanged.
- `bridgeBox` path exercised: `acquireUserBox` created `spoon-box-<user>`
and `ensureBashProfile` seeded `~/.bash_profile`. Interactive typing/
resize could not be observed on this host because dockerode cannot reach
the podman API socket (same mechanism the job terminal uses, so no
regression) — full browser flow is covered by later tasks.
Claude-Session: https://claude.ai/code/session_01ScyZ1NhfN84LAnHpwhfEQk
Gabriel Brown
2c6a605646