feat(web): Settings tabs per service (Qobuz/Soulseek/Library/Discovery)

Split the long Settings page into tabs so each service stands alone, instead
of one long mixed scroll. Same handlers/aria-labels; credential save still
PUTs the full config.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/src/app/settings/settings-form.tsx

@@ -2,7 +2,6 @@
 
 import { useEffect, useState } from "react";
 import { PageHead } from "../_ui/page-head";
-import { SectionHeader } from "../_ui/section-header";
 
 type Loaded = {
   qobuzEmail: string;
@@ -13,6 +12,9 @@ type Loaded = {
   slskdApiKeySet: boolean;
 };
 
+type Tab = "Qobuz" | "Soulseek" | "Library" | "Discovery";
+const TABS: Tab[] = ["Qobuz", "Soulseek", "Library", "Discovery"];
+
 const DISCOVERY_FIELDS: [string, string][] = [
   ["discover.intervalHours", "Interval (hours)"],
   ["discover.maxSeeds", "Max seeds per sweep"],
@@ -22,6 +24,7 @@ const DISCOVERY_FIELDS: [string, string][] = [
 ];
 
 export function SettingsForm() {
+  const [tab, setTab] = useState<Tab>("Qobuz");
   const [qobuzEmail, setQobuzEmail] = useState("");
   const [qobuzPassword, setQobuzPassword] = useState("");
   const [qobuzUserId, setQobuzUserId] = useState("");
@@ -56,7 +59,7 @@ export function SettingsForm() {
     const id = setInterval(async () => {
       const s = await (await fetch("/api/scan")).json();
       setScanResult(s.result);
-      if (!s.requested) setScanRequested(false); // worker finished the scan
+      if (!s.requested) setScanRequested(false);
     }, 2000);
     return () => clearInterval(id);
   }, [scanRequested]);
@@ -80,7 +83,7 @@ export function SettingsForm() {
       .then((c: Record<string, string>) => setDiscoverCfg(c));
   }, []);
 
-  async function submit(e: React.FormEvent) {
+  async function saveCredentials(e: React.FormEvent) {
     e.preventDefault();
     await fetch("/api/config", {
       method: "PUT",
@@ -91,6 +94,7 @@ export function SettingsForm() {
     setQobuzToken("");
     setSlskdApiKey("");
     setSaved(true);
+    setTimeout(() => setSaved(false), 1500);
     setPwSet(pwSet || qobuzPassword !== "");
     setTokenSet(tokenSet || qobuzToken !== "");
     setKeySet(keySet || slskdApiKey !== "");
@@ -117,125 +121,116 @@ export function SettingsForm() {
     <div>
       <PageHead title="Settings" eyebrow="Credentials · library · discovery" />
 
-      {/* ── Credentials ─────────────────────────── */}
+      <div className="tabs">
-      <form className="settings-section" onSubmit={submit}>
+        {TABS.map((t) => (
-        <SectionHeader title="Credentials" />
+          <button key={t} className={`tab${tab === t ? " active" : ""}`} onClick={() => setTab(t)}>
-
+            {t}
-        <div className="subhead">Qobuz — email / password</div>
-        <div className="field-grid">
-          <label className="field">
-            <span>Qobuz email</span>
-            <input aria-label="qobuz email" value={qobuzEmail} onChange={(e) => setQobuzEmail(e.target.value)} />
-          </label>
-          <label className="field">
-            <span>Qobuz password{secretHint(pwSet)}</span>
-            <input
-              aria-label="qobuz password"
-              type="password"
-              placeholder={pwSet ? "•••• stored" : ""}
-              value={qobuzPassword}
-              onChange={(e) => setQobuzPassword(e.target.value)}
-            />
-          </label>
-        </div>
-
-        <div className="subhead">Qobuz — auth token (more reliable; overrides email/password)</div>
-        <div className="field-grid">
-          <label className="field">
-            <span>Qobuz user ID</span>
-            <input aria-label="qobuz user id" value={qobuzUserId} onChange={(e) => setQobuzUserId(e.target.value)} />
-          </label>
-          <label className="field">
-            <span>Qobuz auth token{secretHint(tokenSet)}</span>
-            <input
-              aria-label="qobuz auth token"
-              type="password"
-              placeholder={tokenSet ? "•••• stored" : ""}
-              value={qobuzToken}
-              onChange={(e) => setQobuzToken(e.target.value)}
-            />
-          </label>
-        </div>
-
-        <div className="subhead">Soulseek (slskd)</div>
-        <div className="field-grid">
-          <label className="field">
-            <span>slskd URL</span>
-            <input aria-label="slskd url" value={slskdUrl} onChange={(e) => setSlskdUrl(e.target.value)} />
-          </label>
-          <label className="field">
-            <span>slskd API key{secretHint(keySet)}</span>
-            <input
-              aria-label="slskd api key"
-              type="password"
-              placeholder={keySet ? "•••• stored" : ""}
-              value={slskdApiKey}
-              onChange={(e) => setSlskdApiKey(e.target.value)}
-            />
-          </label>
-        </div>
-
-        <div className="save-row">
-          <button type="submit" className="btn accent">
-            Save
           </button>
-          {saved ? <span className="saved-note">Saved</span> : null}
+        ))}
-        </div>
+      </div>
-      </form>
 
-      {/* ── Library ─────────────────────────────── */}
+      {tab === "Qobuz" ? (
-      <section className="settings-section">
+        <form className="settings-section" onSubmit={saveCredentials}>
-        <SectionHeader title="Library" />
+          <div className="subhead">Email / password</div>
-        <div className="info-panel">
+          <div className="field-grid">
-          <div>
+            <label className="field">
-            <span className="k">Music path</span> &nbsp; <code>/music</code>
+              <span>Qobuz email</span>
-          </div>
+              <input aria-label="qobuz email" value={qobuzEmail} onChange={(e) => setQobuzEmail(e.target.value)} />
-          <div className="muted-note" style={{ fontFamily: "inherit" }}>
-            Mounted read/write into the worker. To point Lyra at a different folder, set{" "}
-            <code>MUSIC_DIR</code> in <code>docker-compose.yml</code> and rebuild — it can’t be remounted from here.
-          </div>
-        </div>
-        <p className="muted-note">Scan the library to record what’s already on disk as owned + monitored.</p>
-        <div className="save-row">
-          <button type="button" className="btn" onClick={requestScan} disabled={scanRequested}>
-            {scanRequested ? "Scanning…" : "Scan library"}
-          </button>
-          {scanResult ? (
-            <span className="saved-note" aria-label="scan result" style={{ color: "var(--graphite)" }}>
-              Last scan: {scanResult}
-            </span>
-          ) : null}
-        </div>
-      </section>
-
-      {/* ── Discovery ───────────────────────────── */}
-      <form className="settings-section" onSubmit={saveDiscovery}>
-        <SectionHeader title="Discovery" />
-        <div className="save-row" style={{ margin: "14px 0 4px" }}>
-          <label className="toggle">
-            <input
-              type="checkbox"
-              checked={discoverCfg["discover.enabled"] === "true"}
-              onChange={(e) => setCfg("discover.enabled", e.target.checked ? "true" : "false")}
-            />
-            Scheduled discovery sweep
-          </label>
-        </div>
-        <div className="field-grid">
-          {DISCOVERY_FIELDS.map(([key, label]) => (
-            <label key={key} className="field">
-              <span>{label}</span>
-              <input type="number" step="any" value={discoverCfg[key] ?? ""} onChange={(e) => setCfg(key, e.target.value)} />
             </label>
-          ))}
+            <label className="field">
-        </div>
+              <span>Qobuz password{secretHint(pwSet)}</span>
-        <div className="save-row">
+              <input aria-label="qobuz password" type="password" placeholder={pwSet ? "•••• stored" : ""} value={qobuzPassword} onChange={(e) => setQobuzPassword(e.target.value)} />
-          <button type="submit" className="btn">
+            </label>
-            Save discovery settings
+          </div>
-          </button>
+          <div className="subhead">Auth token (more reliable; overrides email/password)</div>
-          {discoverSaved ? <span className="saved-note">Saved</span> : null}
+          <div className="field-grid">
-        </div>
+            <label className="field">
-      </form>
+              <span>Qobuz user ID</span>
+              <input aria-label="qobuz user id" value={qobuzUserId} onChange={(e) => setQobuzUserId(e.target.value)} />
+            </label>
+            <label className="field">
+              <span>Qobuz auth token{secretHint(tokenSet)}</span>
+              <input aria-label="qobuz auth token" type="password" placeholder={tokenSet ? "•••• stored" : ""} value={qobuzToken} onChange={(e) => setQobuzToken(e.target.value)} />
+            </label>
+          </div>
+          <div className="save-row">
+            <button type="submit" className="btn accent">Save</button>
+            {saved ? <span className="saved-note">Saved</span> : null}
+          </div>
+        </form>
+      ) : null}
+
+      {tab === "Soulseek" ? (
+        <form className="settings-section" onSubmit={saveCredentials}>
+          <div className="subhead">Soulseek (slskd)</div>
+          <div className="field-grid">
+            <label className="field">
+              <span>slskd URL</span>
+              <input aria-label="slskd url" value={slskdUrl} onChange={(e) => setSlskdUrl(e.target.value)} />
+            </label>
+            <label className="field">
+              <span>slskd API key{secretHint(keySet)}</span>
+              <input aria-label="slskd api key" type="password" placeholder={keySet ? "•••• stored" : ""} value={slskdApiKey} onChange={(e) => setSlskdApiKey(e.target.value)} />
+            </label>
+          </div>
+          <div className="save-row">
+            <button type="submit" className="btn accent">Save</button>
+            {saved ? <span className="saved-note">Saved</span> : null}
+          </div>
+        </form>
+      ) : null}
+
+      {tab === "Library" ? (
+        <section className="settings-section">
+          <div className="info-panel">
+            <div>
+              <span className="k">Music path</span> &nbsp; <code>/music</code>
+            </div>
+            <div className="muted-note" style={{ fontFamily: "inherit" }}>
+              Mounted read/write into the worker. To point Lyra at a different folder, set <code>MUSIC_DIR</code> in{" "}
+              <code>docker-compose.yml</code> and rebuild — it can’t be remounted from here.
+            </div>
+          </div>
+          <p className="muted-note">Scan the library to record what’s already on disk as owned + monitored.</p>
+          <div className="save-row">
+            <button type="button" className="btn" onClick={requestScan} disabled={scanRequested}>
+              {scanRequested ? "Scanning…" : "Scan library"}
+            </button>
+            {scanResult ? (
+              <span className="saved-note" aria-label="scan result" style={{ color: "var(--graphite)" }}>
+                Last scan: {scanResult}
+              </span>
+            ) : null}
+          </div>
+        </section>
+      ) : null}
+
+      {tab === "Discovery" ? (
+        <form className="settings-section" onSubmit={saveDiscovery}>
+          <div className="save-row" style={{ margin: "6px 0 4px" }}>
+            <label className="toggle">
+              <input
+                type="checkbox"
+                checked={discoverCfg["discover.enabled"] === "true"}
+                onChange={(e) => setCfg("discover.enabled", e.target.checked ? "true" : "false")}
+              />
+              Scheduled discovery sweep
+            </label>
+          </div>
+          <div className="field-grid">
+            {DISCOVERY_FIELDS.map(([key, label]) => (
+              <label key={key} className="field">
+                <span>{label}</span>
+                <input type="number" step="any" value={discoverCfg[key] ?? ""} onChange={(e) => setCfg(key, e.target.value)} />
+              </label>
+            ))}
+          </div>
+          <div className="save-row">
+            <button type="submit" className="btn">Save discovery settings</button>
+            {discoverSaved ? <span className="saved-note">Saved</span> : null}
+          </div>
+        </form>
+      ) : null}
     </div>
   );
 }