the settings form, and the branch that never ran

the plugin could not be configured. /_config had GET, PUT, DELETE and a test
that validates without storing, and nothing rendered any of it — the
connection had to be inserted by hand.

ConnectionPanel is both the wizard and the settings page, one component, the
same choice jellyfin's ConnectionSection makes and for the same reason: a
connection edited months later goes through exactly the path that stored the
first one. HostsPanel shows it when nothing is configured and on ?config=1,
which is in the URL so it survives a refresh. test comes before save and
stores nothing, so a wrong password cannot replace a working one. the secret
field starts empty even when one is stored, and empty means keep — that is
what lets a typo in the URL be fixed without going to find the password.

and while wiring the unconfigured case, it turned out that case never fired.

both panels read `(error as { body?: Failure }).body` to decide whether a
failure was unconfigured, unauthenticated or unreachable. useClient throws
ApiError(status, message) and has no `.body` at all, so that was always
undefined: every failure fell through to the generic message, and the careful
explanation of NPM's 404-means-credential quirk was written, shipped and
unreachable. asFailure now reads the STATUS, which the router already chooses
deliberately — 409 nothing stored, 503 no answer, 502 answered and refused.

owner-only is explained rather than reported. a member hitting 403 here reads
why: it is an admin login and NPM has no read-only role.

still not installed, still no db:push.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Officer-Session: 656f5c85-e49a-4f1f-b9f3-042a04b4d043

web/ConnectionPanel.tsx

@@ -0,0 +1,323 @@
+import { useCallback, useEffect, useRef, useState } from 'react';
+import { CheckCircle2, Loader2, Plug, ShieldAlert, Trash2, TriangleAlert } from 'lucide-react';
+import { useClient } from 'hooks/useClient';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+
+/**
+ * The connection to Nginx Proxy Manager — both the setup wizard and the permanent settings page.
+ *
+ * One component for both, the same choice Jellyfin's `ConnectionSection` makes and for the same reason: a
+ * connection edited months later goes through exactly the code path that stored the first one. `HostsPanel`
+ * renders this in place of itself while nothing is configured, and `?config=1` renders it for good.
+ *
+ * ── Owner only, and it says so rather than failing oddly ──
+ *
+ * The manifest marks `/_config` `ownerOnly`, so every request from this component 403s for anybody else —
+ * including the test button, deliberately, because that request carries the admin secret in its body. A
+ * member reaching this screen should read a sentence explaining that, not a raw refusal.
+ *
+ * ── The secret is never loaded ──
+ *
+ * `GET /_config` returns `hasSecret`, never the secret. So the field starts empty even when one is stored,
+ * and an empty field on save means "keep the stored one" — which is what lets a typo in the URL be fixed
+ * without going to find the password again.
+ */
+
+type ConnectionView = {
+  configured: boolean;
+  url: string | null;
+  identity: string | null;
+  hasSecret: boolean;
+  version: string | null;
+  lastProbeAt: string | null;
+  lastProbeOk: boolean | null;
+};
+
+type TestResult = {
+  reachable: boolean;
+  authenticated: boolean;
+  version?: string;
+  setup?: boolean;
+  error?: string;
+  likelyAuth?: boolean;
+};
+
+const HINT = 'text-[11px] leading-relaxed text-muted-foreground';
+
+/**
+ * NPM's admin UI port. Officer reaches it from the SERVER, so localhost here is the machine Officer runs
+ * on — and on a host where NPM is a container, its address on the docker network works whether or not the
+ * port is published. `docs/npm-api.md` has the measurements.
+ */
+const DEFAULT_URL = 'http://127.0.0.1:81';
+
+const URL_HINT =
+  'Where NPM answers, reached from the server rather than from this browser. A trailing slash is trimmed. ' +
+  'If NPM runs as a container beside Officer, its address on the docker network works even with no ' +
+  'published port.';
+
+const SECRET_HINT =
+  'The NPM admin password. Stored encrypted under this plugin’s own key and never returned by the ' +
+  'API — not to a member, not to you. Leave it empty to keep the one already stored.';
+
+type FieldProps = {
+  label: string;
+  hint?: string;
+  value: string;
+  onChange: (value: string) => void;
+  placeholder: string;
+  type?: string;
+  autoFocus?: boolean;
+};
+
+const Field = ({ label, hint, value, onChange, placeholder, type, autoFocus }: FieldProps) => (
+  <label className="flex flex-col gap-1.5">
+    <span className="text-xs font-medium">{label}</span>
+    <Input
+      value={value}
+      onChange={(ev) => onChange(ev.target.value)}
+      placeholder={placeholder}
+      type={type}
+      autoFocus={autoFocus}
+      autoComplete="off"
+      spellCheck={false}
+    />
+    {hint && <span className={HINT}>{hint}</span>}
+  </label>
+);
+
+/** A 403 here means the account is not the owner — the one refusal worth explaining rather than reporting. */
+const isForbidden = (error: unknown): boolean => (error as { status?: number })?.status === 403;
+
+/**
+ * `useClient` throws `ApiError(status, message)` and nothing else — there is no `.body` to read, which is
+ * the bug `HostsPanel`'s `asFailure` documents at length. The message is already the server's own text:
+ * since 2026-08-25 the platform answers `{ error }` and the client unwraps it before throwing.
+ */
+const errorText = (error: unknown): string =>
+  error instanceof Error ? error.message : 'Something went wrong.';
+
+export const ConnectionPanel = () => {
+  const client = useClient();
+  // useClient() rebuilds its verbs every render, so it must never sit in a dependency list.
+  const clientRef = useRef(client);
+  clientRef.current = client;
+
+  const [view, setView] = useState<ConnectionView | null>(null);
+  const [forbidden, setForbidden] = useState(false);
+  const [url, setUrl] = useState('');
+  const [identity, setIdentity] = useState('');
+  const [secret, setSecret] = useState('');
+  const [test, setTest] = useState<TestResult | null>(null);
+  const [error, setError] = useState<string | null>(null);
+  const [busy, setBusy] = useState<'test' | 'save' | 'delete' | null>(null);
+  const [confirming, setConfirming] = useState(false);
+
+  const load = useCallback(async () => {
+    try {
+      const next = await clientRef.current.get<ConnectionView>('/proxy-manager/_config');
+      setView(next);
+      setUrl(next.url ?? DEFAULT_URL);
+      setIdentity(next.identity ?? '');
+      setForbidden(false);
+    } catch (err) {
+      if (isForbidden(err)) return setForbidden(true);
+      setError(errorText(err));
+    }
+  }, []);
+
+  useEffect(() => {
+    void load();
+  }, [load]);
+
+  const runTest = async () => {
+    setBusy('test');
+    setError(null);
+    setTest(null);
+    try {
+      // The secret is sent only when the field was filled. Testing with the field empty checks the URL and
+      // nothing else, which is still useful — it is how you find out you are pointed at the wrong thing.
+      setTest(
+        await clientRef.current.post<TestResult>('/proxy-manager/_config/test', {
+          url,
+          identity: identity || undefined,
+          secret: secret || undefined,
+        }),
+      );
+    } catch (err) {
+      setError(errorText(err));
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const save = async () => {
+    setBusy('save');
+    setError(null);
+    try {
+      const next = await clientRef.current.put<ConnectionView>('/proxy-manager/_config', {
+        url,
+        identity,
+        // Omitted rather than sent empty — the server reads "absent" as keep, and an empty string as a
+        // secret would be stored verbatim.
+        ...(secret ? { secret } : {}),
+      });
+      setView(next);
+      setSecret('');
+      setTest(null);
+    } catch (err) {
+      setError(errorText(err));
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const disconnect = async () => {
+    setBusy('delete');
+    setError(null);
+    try {
+      await clientRef.current.delete('/proxy-manager/_config');
+      setConfirming(false);
+      setTest(null);
+      setSecret('');
+      await load();
+    } catch (err) {
+      setError(errorText(err));
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  if (forbidden) {
+    return (
+      <div className="flex size-full flex-col items-center justify-center gap-3 p-6 text-center">
+        <ShieldAlert className="size-8 text-muted-foreground" />
+        <p className="text-sm text-muted-foreground">Only the server owner can change this connection.</p>
+        <p className={`max-w-sm ${HINT}`}>
+          It is an Nginx Proxy Manager admin login, and NPM has no read-only role — anyone holding it can
+          redirect any hostname this machine serves. You can still see the hosts and certificates.
+        </p>
+      </div>
+    );
+  }
+
+  if (!view) return <div className="flex size-full items-center justify-center p-6 text-sm text-muted-foreground">Loading…</div>;
+
+  // An empty secret is fine on an existing connection and not on a new one — the server enforces this too,
+  // and would answer 400. Saying so here means the button explains itself instead of failing.
+  const canSave = !!url.trim() && !!identity.trim() && (view.hasSecret || !!secret);
+
+  return (
+    <div className="flex size-full flex-col overflow-auto">
+      <header className="flex items-center gap-2 border-b px-3 py-2">
+        <Plug className="size-4 text-muted-foreground" />
+        <span className="text-sm font-medium">{view.configured ? 'Connection' : 'Connect Nginx Proxy Manager'}</span>
+      </header>
+
+      <div className="flex flex-col gap-4 p-4">
+        {view.configured && (
+          <div className="rounded-lg border p-3 text-xs">
+            <div className="flex items-center gap-2">
+              {view.lastProbeOk === false ? (
+                <TriangleAlert className="size-3.5 text-amber-500" />
+              ) : (
+                <CheckCircle2 className="size-3.5 text-emerald-500" />
+              )}
+              <span className="font-medium">{view.url}</span>
+              {view.version && <span className="text-muted-foreground">NPM {view.version}</span>}
+            </div>
+            <p className={`mt-1 ${HINT}`}>
+              {view.identity}
+              {view.hasSecret ? ' · a secret is stored' : ' · no secret stored'}
+              {view.lastProbeAt ? ` · last checked ${new Date(view.lastProbeAt).toLocaleString()}` : ''}
+            </p>
+          </div>
+        )}
+
+        <Field label="URL" hint={URL_HINT} value={url} onChange={setUrl} placeholder={DEFAULT_URL} autoFocus={!view.configured} />
+        <Field
+          label="Email"
+          hint="NPM calls this the identity. It is the address you sign in to NPM with."
+          value={identity}
+          onChange={setIdentity}
+          placeholder="admin@example.com"
+        />
+        <Field
+          label="Password"
+          hint={SECRET_HINT}
+          value={secret}
+          onChange={setSecret}
+          placeholder={view.hasSecret ? 'unchanged' : '••••••••'}
+          type="password"
+        />
+
+        {test && (
+          <div className="rounded-lg border p-3 text-xs">
+            {test.authenticated ? (
+              <p className="flex items-center gap-2 text-emerald-600 dark:text-emerald-400">
+                <CheckCircle2 className="size-3.5" /> Reached NPM {test.version} and the credential works.
+              </p>
+            ) : test.reachable ? (
+              <>
+                <p className="flex items-center gap-2 text-amber-600 dark:text-amber-400">
+                  <TriangleAlert className="size-3.5" /> Reached NPM {test.version}, but not signed in.
+                </p>
+                <p className={`mt-1 ${HINT}`}>
+                  {test.setup === false
+                    ? 'That NPM has not finished its own setup yet — create its first admin user in NPM before connecting.'
+                    : (test.error ??
+                      'Fill in the email and password to check them. NPM answers 404 when unauthenticated, so a "not found" here is almost always the credential.')}
+                </p>
+              </>
+            ) : (
+              <>
+                <p className="flex items-center gap-2 text-destructive">
+                  <TriangleAlert className="size-3.5" /> Could not reach it.
+                </p>
+                <p className={`mt-1 ${HINT}`}>{test.error}</p>
+              </>
+            )}
+          </div>
+        )}
+
+        {error && <p className="text-xs text-destructive">{error}</p>}
+
+        <div className="flex flex-wrap items-center gap-2">
+          {/* Test comes first, and testing never stores anything — so a wrong password cannot replace a
+              working one just because someone wanted to check it. */}
+          <Button type="button" variant="outline" size="sm" onClick={() => void runTest()} disabled={!url.trim() || busy !== null}>
+            {busy === 'test' ? <Loader2 className="size-3.5 animate-spin" /> : null} Test
+          </Button>
+          <Button type="button" size="sm" onClick={() => void save()} disabled={!canSave || busy !== null}>
+            {busy === 'save' ? <Loader2 className="size-3.5 animate-spin" /> : null}
+            {view.configured ? 'Save' : 'Connect'}
+          </Button>
+
+          {view.configured &&
+            (confirming ? (
+              <>
+                <Button type="button" variant="destructive" size="sm" onClick={() => void disconnect()} disabled={busy !== null}>
+                  {busy === 'delete' ? <Loader2 className="size-3.5 animate-spin" /> : null} Really disconnect
+                </Button>
+                <Button type="button" variant="ghost" size="sm" onClick={() => setConfirming(false)}>
+                  Cancel
+                </Button>
+              </>
+            ) : (
+              <Button type="button" variant="ghost" size="sm" onClick={() => setConfirming(true)} disabled={busy !== null}>
+                <Trash2 className="size-3.5" /> Disconnect
+              </Button>
+            ))}
+        </div>
+
+        {!view.configured && (
+          <p className={HINT}>
+            Nothing is created or changed in NPM by connecting. This reads what is there, and the only write
+            it ever makes is taking a host in or out of service.
+          </p>
+        )}
+      </div>
+    </div>
+  );
+};