Release 2026.08.01-1

Lyrics, versioning, and the song page's fact line.

- Lyrics are suggested at submission and never imposed: the worker makes one
  LRCLIB lookup, and Hae sanoitukset re-queries with whatever title and artist
  are typed. Neither overwrites what the submitter wrote. They live on the
  submission, travel to the song at publish, and stay editable after the song
  locks — the lock freezes what a song claims to be, and nobody reviewed the
  lyrics
- The review strip reads and writes side by side: lyrics left, review right.
  Synced LRC highlights the playing line and seeks on click; plain text scrolls
  continuously with a nudge knob. Following can be turned off
- CalVer YYYY.MM.DD-N, injected from the git tag with -ldflags, shown in the
  footer, the startup log and /healthz
- The song page's metadata became four labelled cells instead of one flat run
  of five different kinds of fact

Fixes: publishing wiped lyrics the worker had just fetched (a request that
omitted a field cleared it), lyric auto-scroll landed in the wrong place, and
the fader shifted the deck sideways at score 100.

templates/song.html

@@ -49,14 +49,23 @@
     <div class="deck">
       {{template "player" $s}}
       {{with $s.Description}}<p class="intro">{{.}}</p>{{end}}
-      <label class="grow">Arvostelu
-        <textarea name="text" rows="8" maxlength="5000" required
-                  placeholder="Mitä kuulit?"></textarea>
-      </label>
-      <div class="deckfoot">
-        <button type="submit">Tallenna arvostelu</button>
-        <span class="muted small">Muiden pisteet paljastuvat kun tallennat omasi. Voit muokata
-          tai poistaa arvostelusi 30 minuutin ajan.</span>
+
+      <!-- Two panes when the song has lyrics: read on the left, write on the right, so following
+           the words costs no scrolling. Without lyrics the pane is absent, not empty. -->
+      <div class="panes{{if not $s.Lyrics}} solo{{end}}">
+        {{if $s.Lyrics}}
+          <div class="lyricspane">{{template "lyricsview" $s}}</div>
+        {{end}}
+        <div class="writepane">
+          <label class="grow">Arvostelu
+            <textarea name="text" maxlength="5000" required placeholder="Mitä kuulit?"></textarea>
+          </label>
+          <div class="deckfoot">
+            <button type="submit">Tallenna arvostelu</button>
+            <span class="muted small">Muiden pisteet paljastuvat kun tallennat omasi. Voit muokata
+              tai poistaa arvostelusi 30 minuutin ajan.</span>
+          </div>
+        </div>
       </div>
     </div>
   </form>
@@ -67,6 +76,25 @@
 
 {{with $s.SourceURL}}<p class="muted small"><a href="{{.}}" rel="noreferrer">Kuuntele YouTubessa</a></p>{{end}}
 
+{{if and (not $s.CanReview) (or $s.Lyrics $s.Own)}}
+<!-- Only when the review strip is not already showing them: while reviewing, the lyrics live in
+     the left pane. This panel is for reading afterwards and for the submitter's edits. -->
+<details class="lyrics">
+  <summary>Sanoitukset{{if not $s.Lyrics}} <span class="muted small">— ei vielä lisätty</span>{{end}}</summary>
+  {{if $s.Lyrics}}<pre class="lyricstext">{{lyricstext $s.Lyrics}}</pre>{{end}}
+  {{if $s.Own}}
+    <form method="post" action="/songs/{{$s.ID}}/lyrics" class="stack">
+      <label>Muokkaa sanoituksia
+        <textarea name="lyrics" rows="10" maxlength="20000"
+                  placeholder="Liitä sanoitukset tähän.">{{$s.Lyrics}}</textarea>
+      </label>
+      <button type="submit">Tallenna sanoitukset</button>
+    </form>
+    <p class="muted small">Sanoituksia voi muokata vielä arvostelujenkin jälkeen.</p>
+  {{end}}
+</details>
+{{end}}
+
 {{if $s.ViewerReview}}
 <section>
   <h2>Oma arvostelusi</h2>