A dashboard served through a web tab saw `/webview/<cap>/` as its
`location.pathname`, and no app has a route for that: a React Router, Vue
Router or Vite dev-server page painted its HTML and CSS and then replaced
them with its own "page not found" the moment its script ran (reproduced
with a minimal history-routed page).
The proxy's runtime shim now rewrites the history entry to the path the
page would see on its own origin, before any page script runs. The base
element still resolves relative URLs inside the prefix and every root-
absolute sink is rewritten back into it, so only what the page READS
changes. With the document URL masked the Referer-keyed 404 rescue can no
longer help a request the shim misses, so the remaining URL-taking entry
points (`Worker`, `SharedWorker`, `navigator.sendBeacon`, `window.open`)
are covered by the shim as well.
A navigation the page starts itself afterwards — `location.reload()`
(a dev server's full-reload HMR), a root-absolute `location.href` — lands
on Codeman's root with no capability anywhere: no prefix in the path, no
cookie in an opaque-origin frame, a Referer naming the masked page. It is
recognised by shape (a top-level iframe navigation asking for HTML, for a
path Codeman does not serve) and answered with a static page whose only
script posts `{type:'codeman:webview-lost', path}` to the parent; the tab
that owns the frame (matched by `event.source`, never by the payload)
remounts it inside the prefix at that path, bounded per frame. The
unauthenticated form is answered in the auth middleware before the
credential checks, so a dev server that reloads on every save cannot
rate-limit its own user out of Codeman; the authenticated form (Basic
auth, trusted mode) is answered by the 404 handler.
Verified end to end against a history-routed page: boots on `/`, its
API call succeeds, a reload inside the frame comes back routed on the
path it had pushed, `location.href = '/about'` comes back on `/about`,
and a deep link opens on its path.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Codeman can now be mounted under a sub-path behind a reverse proxy that
forwards the prefix unchanged (e.g. https://host/codeman/). Default is `/`
(root), which is byte-identical to the historical behavior.
Design — few choke points, mirrored ingress/egress:
- src/config/base-path.ts: pure single-source normalize/validate/join/strip.
- Server ingress: stripBasePath() inside Fastify rewriteUrl, so routes stay
declared prefix-agnostic; un-prefixed requests (hooks, health, docker bridge
hitting the raw port) pass through unchanged.
- Server egress: one onSend hook prepends the base to root-absolute Location
headers (covers all redirects).
- HTML: renderIndexHtml points <base href> at the mount and injects
window.__CODEMAN_BASE__ — ONLY when a base is set (inert at root).
- Frontend runtime URLs: CodemanBase.url() route builder in constants.js,
applied transparently by a fetch wrapper and explicitly at the
EventSource/WebSocket/window.open/<img|iframe|a>-src sites.
- sw.js derives its base from self.location; manifest uses relative start_url/scope.
- Web-tab proxy: proxyPrefixFor(cap, basePath) is the single base-aware root that
cascades to the injected <base>, HTML/attr rewrites, runtimeUrlShim, Set-Cookie
Path and Location; capabilityFromReferer strips the base off the browser Referer,
while the ingress parsers stay base-agnostic (rewriteUrl already stripped it).
--base-url rides the daemon relaunch (buildWebArgs) and the service unit
(resolveServicePlan). constants.js is guarded against a missing `window` for
isolated unit-test contexts.
Tests: test/base-path.test.ts (pure helpers), base-path coverage in
webview-proxy/render-index-html/daemon-control; CodemanBase stubbed in the
vm-isolated panels-ui test contexts. Docs: Remote-Access.md (sub-path section +
nginx example), security-architecture.md env table, CLAUDE.md pattern.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XUkPBxbumnct6qSrx4JDju
Adds a "Web / URL" section to the Run dropdown. A saved URL renders as a tab in
the same strip as Claude/Codex/Gemini sessions, with the same Alt+1..9 numbering,
so Codeman is one mission control instead of Codeman plus a pile of browser tabs.
A webview is NOT a sixth SessionMode: no PTY, no tmux, no respawn, no idle
detection. It is a separate resource sharing only the tab strip and the main
content area, the same call that keeps Docker and remote-SSH as case overlays.
Dashboards are proxied through Codeman's own origin, because a direct iframe
fails three ways at once in the shipped deployment: prod serves HTTPS behind
tailscale serve, so http:// targets are hard-blocked as mixed content (with no
override at all on iOS Safari); Grafana/Portainer-class dashboards send
X-Frame-Options: DENY; and our own default-src 'self' CSP blocks cross-origin
frames. Proxying dissolves all three and leaves the production CSP byte-for-byte
unchanged, since /webview/... is already covered by 'self'. A useful side effect:
the fetch happens server-side, so a tailnet-only dashboard is reachable from a
phone that is not on the tailnet.
The proxy is not an API surface. It authenticates on a 192-bit capability in the
path (memory-only, rolling TTL, bound to the minting user, revoked on edit or
delete) and is correspondingly exempt from the cookie and Origin checks, because
a sandboxed iframe is opaque-origin: it sends no SameSite=lax cookie and its
writes arrive with Origin: null. The Host allowlist is never bypassed. A second
Referer-keyed form of the exemption exists for root-absolute assets and is fenced
to safe methods on non-/api, non-/ws, non-/q paths.
Iframes omit allow-same-origin unless a URL is explicitly marked trusted, since a
proxied page is served from Codeman's own origin and could otherwise read this
document and drive the agent-spawning API. Authorization and codeman_session are
stripped upstream in BOTH modes, so CODEMAN_PASSWORD cannot leak into a dashboard.
Two things only a real browser reveals, both presenting as the dashboard's own
"Failed to fetch" while the page itself renders fine:
- Runtime-built root-absolute URLs (fetch('/api/data')) escape <base href> and
land on Codeman's root. Widening the Referer fallback into /api would trade
security for it, so an injected shim patches fetch/XHR/WebSocket/EventSource
inside the frame instead, removing the class rather than the guard.
- An opaque-origin document CORS-checks every request, including to the host it
was served from. Script/css/img loads are not CORS-checked, which is why the
page renders while its API calls die. The proxy now emits CORS headers and
answers preflights itself. registerSecurityHeaders answered every OPTIONS with
a bare 204 before routing, carrying no ACAO for Origin: null, so that
short-circuit now exempts a valid capability.
Neither is reproducible with curl, which does not enforce CORS.
Also fixes a pre-existing bug found on the way: .toolbar has backdrop-filter,
making it a stacking context that trapped .run-mode-menu's z-index:1000, so
.welcome-overlay painted over the whole Run menu. With no session open, every
item in it (Claude Code included) was unclickable.
Verified end to end against a real tailnet dashboard: live data, WebSocket push,
no failed requests, and switching tabs does not reload the frame. 98 new tests
cover the pure rewrite helpers, the CORS helper, the shim's rewrite logic, route
CRUD, and every edge of the auth exemption.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The opt-in multi-user feature's only enforcement is web-layer scoping
(all sessions share one OS account). An adversarial review found 8 critical
+ 7 high cross-user holes that defeated it, plus mediums; all fixed here.
Single-user (flag-off) behavior stays byte-identical apart from documented
consistency deltas.
Ownership / confinement:
- DELETE /api/sessions (bulk) + /:id now owner-scope / findSessionOrFail
- quick-start, cron (create+fire), scheduled runs confine workingDir to the
owner's space; case link/docker-link/docker-import confine the host path
- resolveCasePath no longer resolves linked cases for non-admins; foreign
remote/docker cases are skipped (fall through to the caller's own local case)
- history, subagents/workflows, mux-sessions, orchestrator, cron run-history,
away-digest, and remote/docker host reads are owner- or admin-scoped
Permission policy (section 6.3):
- non-granted users are downgraded at every spawn site incl. legacy
/api/scheduled, PlanOrchestrator one-shots, remote launch, and the cron-fire
gemini/codex bypass switches; resolveClaudeModeForUsername now fails closed
Auth / store:
- verify-first login throttle (a correct password is never locked out),
/ws terminal subject to the change-password lockbox, cookie fast-path
re-validates identity live, role/grant changes revoke sessions, admin delete
runs the last-admin guard before any teardown
- users.json: distinguish missing (ENOENT) from corrupt/unreadable so a bad
read can't overwrite all accounts; unique per-process temp write path
Event streams:
- debounced session:updated + batched task:updated, clipboard, and push
notifications route by owner (fail closed); getLightState hides machine-wide
globalStats from non-admins
Tests: two suites updated to assert the fixed (secure) behavior. tsc, eslint,
and test:ci all green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Adds a parallel multi-user auth branch (the single-user Basic-auth path is
left byte-identical). Off unless CODEMAN_MULTIUSER/--multiuser.
- middleware/auth.ts: mode-selecting registerAuthMiddleware. New async
multi-user hook verifies username:password against the user store (scrypt),
mints identity-carrying cookies, decorates req.authUser, enforces a per-IP
AND per-username failure bucket, and the mustChangePassword lockbox. The
hook-secret loopback bypass is now a single shared helper used by both
branches. FastifyRequest.authUser module augmentation.
- ports/auth-port.ts: AuthSessionRecord gains username/role/mustChangePassword.
- user-store.ts: verifyPassword (timing-equalized against user enumeration).
- route-helpers.ts: getAuthUser (synthetic admin fallback), canAccessOwned,
requireAdmin, revokeUserSessions; findSessionOrFail gains an optional req for
a NOT_FOUND owner check (dormant until phase 3 wires callers).
- routes/me-routes.ts: GET /api/me (synthetic admin in single-user) and
POST /api/me/password (verify current, min 8, clear mustChangePassword,
revoke other sessions).
- QR: QrTokenRecord + AuthSessionRecord carry a username; tunnel-manager
mintUserToken / consumeTokenWithIdentity / getQrSvgForCode; /q/:code binds
the cookie to the token's user (rejects identity-less tokens in multi-user);
GET /api/tunnel/qr mints a per-user token. Single-user keeps the rotating token.
- server.ts: bootstrap the initial admin from CODEMAN_USERNAME/PASSWORD on first
boot (refuse to start with no users); multi-user with >= 1 user satisfies the
non-loopback auth requirement and the tunnel-enable guard; userFailures bucket
disposal.
- types/api.ts: FORBIDDEN, PASSWORD_CHANGE_REQUIRED, USER_EXISTS, USER_NOT_FOUND,
LAST_ADMIN error codes (message + status wired).
- Session.owner field + getter/setter, SessionState.owner, MuxSession.owner,
CreateSessionOptions.owner (foundation for phase 3 ownership threading).
Tests: test/multiuser-auth.test.ts (10, live server on 3170/3171). Existing auth
suite (auth-security, qr-auth, cod54-hook-event, network-auth-policy) unchanged
and green; full test:ci sweep passes (3519 tests).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The codeman_session cookie was only set on the Basic Auth path with a fixed
lifetime from login and never refreshed, while the server-side session store
slides its TTL (refreshOnGet). So the browser cookie expired mid-use, the next
request arrived cookie-less and fell through to Basic Auth, popping the native
username/password dialog — perceived as a random logout while actively working.
Re-issue the cookie on every authenticated (valid-cookie) request so the browser
lifetime tracks the server-side sliding TTL.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
COD-54 gated the /api/hook-event + /api/status-telemetry localhost bypass
behind the shared X-Codeman-Hook-Secret only WHILE a managed tunnel was
running, keeping a plain localhost bypass otherwise. But Codeman can't detect
a user's OWN loopback reverse proxy (their own `cloudflared --url`,
`tailscale serve`, nginx -> 127.0.0.1), which proxies internet traffic into
the loopback origin with req.ip === 127.0.0.1 — so that setup kept the unsafe
plain bypass.
Require the secret on the loopback bypass unconditionally. Managed-session
hooks already always present it (X-Codeman-Hook-Secret from
$CODEMAN_HOOK_SECRET_FILE, generated for every instance), so the legitimate
hook channel is unaffected; only the previously-unguarded own-proxy path is
now rejected. Drops the now-unused getTunnelRunning param from
registerAuthMiddleware.
Tests: cod54-hook-event-auth (tunnel-down now also requires the secret, plus
a good-secret positive case); auth-security (hook tests present the secret to
reach schema validation).
Surface Claude subscription plan usage limits (5-hour rolling + 7-day
weekly: percent used + reset time) in the header, opt-in via App Settings
→ Display → "Plan Usage Limits" (default OFF, no behavior change when off).
A Codeman-managed Claude statusLine exporter forwards the rate_limits JSON
to a new auth-exempt POST /api/status-telemetry (same loopback + hook-secret
gate as /api/hook-event); parsed telemetry broadcasts over SSE
session:statusTelemetry to a header chip (amber >=80%, red >=95%, reset
times on hover). The exporter prints the same summary back as the
in-terminal footer (print-through).
- src/usage-telemetry.ts: pure parser/formatter (epoch-sec -> ms, clamp,
change signature) + test/usage-telemetry.test.ts
- hooks-config.ts: generateStatusLineCommand + applyStatusLineConfig
(add/remove; never clobbers a user's own statusLine)
- session-routes.ts: inject gate (Claude-only, Codeman-managed cases),
driven by create-payload statusLineTelemetry (session-ui.js)
- schemas.ts: StatusTelemetrySchema + showPlanUsageLimits + payload field
- frontend: header chip, applyHeaderVisibilitySettings toggle,
renderIndexHtml strip, _onSessionStatusTelemetry handler
Schema empirically confirmed against Claude Code 2.1.177 (Claude Max):
only five_hour/seven_day windows exist (no Opus-weekly field); rate_limits
is absent before the first API response and for non-subscriber auth. Design
+ verification method in docs/usage-limits-display-plan.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Review fixes for COD-54:
- Generated hook curl commands now present X-Codeman-Hook-Secret, read from
the secret file AT EXECUTION TIME via $CODEMAN_HOOK_SECRET_FILE (exported
into every managed session's env by tmux buildEnvExports / the direct-PTY
env builders). Without this, every local hook 401'd the moment a managed
tunnel came up — the enforcement existed but nothing presented the secret.
Path-not-value keeps the secret off command lines and out of config files,
and running sessions pick up a newly generated secret with no respawn;
server.start() ensures the file exists up front.
- Hook-secret failures now count into a DEDICATED per-IP bucket
(hookSecretFailures) instead of the shared authFailures map. Legacy
(pre-secret) hook configs fire constantly from 127.0.0.1; counting their
401s against the shared bucket would 429 every cookie-less loopback
request — locking out the Basic-Auth login path (and, through a tunnel,
every client, since tunneled traffic also arrives as 127.0.0.1).
- docs/security-architecture.md: secret-gated hook exemption, dedicated
bucket, COD-55 refusal, and the residual caveat for EXTERNAL loopback
proxies (user-run cloudflared / tailscale serve), which the
managed-tunnel probe cannot see.
- test/cod54-hook-event-auth.test.ts: +3 tests — login path unaffected
after hook-bucket exhaustion; generated hooks reference the header +
$CODEMAN_HOOK_SECRET_FILE without embedding the value; env builders
export the path only.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Two hardening fixes for the public-tunnel exposure path (COD-54 / COD-55).
COD-54 — gate the /api/hook-event localhost bypass when a tunnel is up:
`cloudflared --url http://127.0.0.1:port` proxies internet traffic INTO the
loopback origin, so a tunneled hook request arrives with req.ip === 127.0.0.1
and the old bare-localhost bypass would pass it unauthenticated. Now:
- tunnel running → bypass requires a shared per-instance hook secret
(X-Codeman-Hook-Secret header; constant-time compare) + per-IP rate limiting
- tunnel not running (loopback-only, the normal case) → unchanged, so
already-deployed credential-less hooks keep working.
New src/config/hook-secret.ts; auth middleware takes a getTunnelRunning probe
(wired from server.ts via tunnelManager.isRunning()).
COD-55 — refuse starting the Cloudflare tunnel without auth:
enabling the tunnel publishes full terminal control to a public URL; with no
CODEMAN_PASSWORD the auth middleware is inactive and the bind guard never trips
(tunnel binds loopback). PUT /api/settings now refuses tunnelEnabled:true with a
403 (before persisting) unless CODEMAN_PASSWORD is set or
CODEMAN_ALLOW_UNAUTHENTICATED_NETWORK=1 is acknowledged. New
isUnauthenticatedNetworkAcknowledged() in network-auth-policy; settings-ui
surfaces the refusal as an error toast and reverts the toggle.
Scope: the always-on CSRF/Origin guard, Host-header allowlist, and
network-auth-policy itself are already upstream (#113) and not re-proposed here.
Verification: tsc, eslint, prettier, check:frontend-syntax clean; full test:ci
green (2723 passed), incl. test/cod54-hook-event-auth and
test/routes/system-routes-tunnel-guard.
cmdPattern's empty-matchable unbounded arg group backtracked exponentially
on wrapped heredoc/table lines — hovering one froze the tab for minutes.
Non-empty tokens + bounded reps make it O(n); regression test extracts the
shipped patterns and pins timing on the real killer shapes.
worker-src 'self' blob: is now unconditional so terminal-ui's _safeYield
tick worker (throttling escape) isn't CSP-blocked on non-gesture installs.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Adds an always-on Host-header allowlist and a cross-site Origin/CSRF guard,
hardens the text/plain body parser, validates the WebSocket upgrade origin,
and escapes AI-derived fields in the subagent panel. Closes the two
CRITICALs and 5 HIGHs from the 2026-06-09 adversarial security review.
- C1: no Host allowlist -> DNS rebinding drove the full API (RCE) on the
default no-auth loopback install. New registerHostGuard rejects rebound
custom domains; allows loopback, any IP literal, the bind host,
*.ts.net / *.trycloudflare.com / *.cfargotunnel.com, the active managed
tunnel, and CODEMAN_ALLOWED_HOSTS.
- C2: a global text/plain parser JSON-parsed every body, enabling cross-site
simple-request CSRF. Parser now keeps the raw string; /api/crash-diag
self-parses; the global Origin guard rejects cross-site state changes.
- H1/H3/H6: self-update, session create/input, and settings/tunnel toggles
were CSRF-triggerable -> now covered by the Origin guard.
- H4: the subagent activity panel injected raw AI tool names/inputs into
innerHTML (executed under CSP 'unsafe-inline'). All sinks now escapeHtml'd.
- H5: the WebSocket upgrade had no Origin/Host check (CSWSH) -> now validated.
A missing Origin is allowed so curl/CLI and Claude Code hooks keep working;
custom reverse-proxy domains need CODEMAN_ALLOWED_HOSTS=host,.suffix.
Deferred: H2 (self-update tag signing, needs signing infra) and CSP
'unsafe-inline' removal (needs a nonce migration).
Tests: test/network-host-guard.test.ts (19), test/routes/ws-routes.test.ts
updated. Report: docs/reports/security-review-2026-06-09.md
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
MediaPipe's wasm runtime + model are served same-origin from /gesture/, so the
gesture CSP no longer needs https://cdn.jsdelivr.net / https://storage.googleapis
.com in connect-src ('self' covers same-origin). Kept 'wasm-unsafe-eval'
(script-src, WASM compile) and worker-src 'self' blob: (MediaPipe blob workers).
Codeman's base jsdelivr entries (script/style/font-src) are unchanged — those
aren't gesture's.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Wrap the two long CSP-builder lines in registerSecurityHeaders to the 120-col
Prettier limit. Formatting only — no behavior change. Fixes the failing
"Typecheck & Lint" check (prettier --check) on PR #103.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Loads a hand-tracking overlay into the dashboard that detaches a session by
pinch-grabbing its tab and pulling it out — driving the existing
app.detachSession(id) hook. Bundle (src/web/public/gesture/gesture-codeman.js)
is built from the codeman-gesture-control project's src/codeman/entry.ts
(esbuild, MediaPipe included) and served same-origin.
OFF by default — guarded entirely by CODEMAN_GESTURE=1:
- server.ts: injects the module script into the dashboard HTML only (not solo
/session/:id popups, which have no tab strip).
- auth.ts: widens CSP only under the flag — adds 'wasm-unsafe-eval' (MediaPipe
WASM) and the pinned MediaPipe CDNs (cdn.jsdelivr.net wasm, storage.googleapis.com
model) to connect-src, plus worker-src 'self' blob:. Production CSP is unchanged
when the flag is off.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Knip-driven cleanup. All changes verified with tsc --noEmit, lint, and
build.
Removed (zero consumers):
- VERIFICATION_PROMPT constant + its barrel re-export
- createInitialOrchestratorPersistState factory
- transcriptWatcher singleton export
- createAnsiPatternFull / createAnsiPatternSimple factories
- TimerInfo interface + unused AiCheckResult/AiPlanCheckResult imports
in respawn-controller.ts
- 35 unused Zod z.infer \`*Input\` types in schemas.ts
- Dead re-exports: SessionMode from session.ts, AuthSessionRecord from
web/ports/index.ts, EnhancedPlanTask/CheckpointReview from
ralph-tracker.ts, 7 unused entries in utils/index.ts
- 14 event/config interfaces that lived only as JSDoc hints (no TS type
position usage): Session/Respawn/RalphLoop/RalphTracker/
SessionManager/SessionAutoOps/Subagent/TaskQueue/TaskTracker/
TranscriptWatcher/Image/OrchestratorLoop Events + RespawnPreset +
SessionOutput
Narrowed to module scope (kept but no longer exported):
- buildPermissionArgs in session-cli-builder.ts
- 28 type/interface declarations used only within their own file:
Ai{Idle,Plan}Check{Config,State}, BashToolParser{Events,Config},
FileStream/CreateStream{Options,Result}, PlanSubagentEvent,
SubagentCallback, RalphLoopConfig, RalphLoop{Events,Options},
ActiveTimerInfo, DetectionStatus, ActionLogEntry, AutoOpsCallbacks,
TunnelStatus, Timer/LRUMap/StaleExpirationMap Options, AuthState,
SessionListenerDeps, SseStreamManagerDeps, and 8 more
Docs: CLAUDE.md advice for global-regex `lastIndex` now points to the
remaining `execPattern()` helper instead of the deleted factories.
Knip delta: unused files 42→0, unused exports 161→16, unused types 92→0.
The 16 remaining exports are a mobile-test helper toolkit intentionally
kept for upcoming tests.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds ephemeral single-use QR tokens for passwordless tunnel login.
Scanning the QR auto-authenticates; bare tunnel URL requires Basic Auth.
Backend:
- TunnelManager: 60s token rotation, 90s grace, rejection-sampled 6-char
base62 short codes, Map-based O(1) lookup, SVG caching, global rate limit
- Auth middleware: /q/ bypass, separate qrAuthFailures counter, enhanced
AuthSessionRecord with device context (ip, ua, createdAt, method)
- Routes: GET /q/:code (consume + cookie + redirect), POST /api/tunnel/qr/
regenerate, POST /api/auth/revoke, updated GET /api/tunnel/qr with cache
- SSE: tunnel:qrRotated, tunnel:qrRegenerated, tunnel:qrAuthUsed events
- Audit: qr_auth lifecycle log entries
Frontend:
- Auto-refresh QR via inline SVG in SSE (fallback fetch if absent)
- 60s countdown indicator on QR badge
- Regenerate QR button
- QRLjacking detection toast with [Revoke All] action button (10s duration)
- showToast enhanced with optional duration and action button support
Fixes:
- /api/logout now invalidates server-side session token (was only clearing
browser cookie, leaving token valid for replay)
Tests: 20 new tests in test/qr-auth.test.ts covering token lifecycle,
bias check, rate limiting, SVG caching, and full server integration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Split 6,710-line server.ts into focused route modules using port
interfaces for dependency injection. 107/109 routes extracted into
12 domain files with auth middleware, 5 port interfaces, and shared
helpers. Server.ts retains orchestration (SSE, lifecycle, state).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
