feat(arr): delete affordance on subtitle chips

Adds a two-click delete icon to each present-subtitle chip, naming
the sidecar in its title/aria-label. Wires the existing DELETE
/api/subtitles/{id} endpoint and reuses the panel's refresh() so
chips and the manual panel repaint after a delete (#223).

web/src/main.ts

@@ -117,6 +117,7 @@ import {
 import { armedDelete, settingsMain } from "./settings";
 import "./style.css";
 import {
+  deleteSubtitle,
   type EpisodeSubtitleStatus,
   formatCandidateFlags,
   formatDownloads,
@@ -856,8 +857,8 @@ function countsChip(
  * case of "has a subtitle", not the clean one, and §15 wants it readable at
  * a glance rather than by hovering for the origin word.
  */
-function subtitleChip(subtitle: Subtitle): HTMLSpanElement {
+function subtitleChip(subtitle: Subtitle, onDeleted: () => void): HTMLSpanElement {
-  return chip(subtitleChipLabel(subtitle), (span) => {
+  const chipEl = chip(subtitleChipLabel(subtitle), (span) => {
     if (!subtitle.forced) {
       span.dataset.verdict = "eligible";
     }
@@ -865,6 +866,77 @@ function subtitleChip(subtitle: Subtitle): HTMLSpanElement {
       span.dataset.mt = "true";
     }
   });
+  // An embedded track has no sidecar (§15) — nothing on disk to name or delete.
+  if (subtitle.path !== null) {
+    chipEl.append(subtitleDeleteButton(subtitle.id, subtitle.path, chipEl, onDeleted));
+  }
+  return chipEl;
+}
+
+/**
+ * The delete affordance nested in a present-subtitle chip (issue #223): first
+ * click arms it, second confirms — same idiom as `armedDelete`, scoped down
+ * to an icon so it fits inside a chip. The confirmation names the sidecar
+ * itself, in the title and `aria-label` both, since a chip is too narrow to
+ * spell out a filename in its own text (§9.6's one-row constraint).
+ */
+function subtitleDeleteButton(
+  subtitleId: number,
+  path: string,
+  chipEl: HTMLSpanElement,
+  onDeleted: () => void,
+): HTMLButtonElement {
+  const name = fileName(path);
+  const button = document.createElement("button");
+  button.type = "button";
+  button.className = "chip-delete";
+  button.append(closeIcon());
+
+  let armed = false;
+  let resetTimer: number | undefined;
+  const label = (confirming: boolean) => `${confirming ? "confirm " : ""}delete ${name}`;
+  const paint = (confirming: boolean) => {
+    button.title = label(confirming);
+    button.setAttribute("aria-label", label(confirming));
+  };
+  const disarm = () => {
+    armed = false;
+    window.clearTimeout(resetTimer);
+    delete button.dataset.armed;
+    paint(false);
+  };
+
+  paint(false);
+  button.addEventListener("click", (event) => {
+    // the chip itself carries no click behaviour today, but never assume that stays true
+    event.stopPropagation();
+    if (!armed) {
+      armed = true;
+      button.dataset.armed = "true";
+      paint(true);
+      resetTimer = window.setTimeout(disarm, 4000);
+      return;
+    }
+    disarm();
+    button.disabled = true;
+    delete chipEl.dataset.tone;
+    chipEl.title = "";
+    void deleteSubtitle(subtitleId).then((outcome) => {
+      if (outcome.kind === "error") {
+        button.disabled = false;
+        chipEl.dataset.tone = "fault";
+        chipEl.title = `delete failed — ${outcome.detail}`;
+        return;
+      }
+      onDeleted();
+    });
+  });
+  button.addEventListener("blur", () => {
+    if (armed) {
+      disarm();
+    }
+  });
+  return button;
 }
 
 /** One missing-language chip: the same amber "wanted, not yet on disk" ramp §4.2 already uses. */
@@ -1220,7 +1292,7 @@ function subtitleSection(status: SubtitleStatus, refresh: () => void): SubtitleS
   function paintChips() {
     line.replaceChildren();
     for (const subtitle of subtitles) {
-      line.append(subtitleChip(subtitle));
+      line.append(subtitleChip(subtitle, refresh));
     }
     for (const gap of missing) {
       line.append(missingSubtitleChip(gap));
@@ -2028,6 +2100,21 @@ function starIcon(): SVGSVGElement {
   return svg;
 }
 
+/** The drawn × on a delete affordance — no glyph standing in for an icon. */
+function closeIcon(): SVGSVGElement {
+  const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
+  svg.setAttribute("viewBox", "0 0 12 12");
+  svg.setAttribute("class", "close-icon");
+  svg.setAttribute("aria-hidden", "true");
+  const path = document.createElementNS("http://www.w3.org/2000/svg", "path");
+  path.setAttribute("d", "M2.5 2.5 L9.5 9.5 M9.5 2.5 L2.5 9.5");
+  path.setAttribute("stroke", "currentColor");
+  path.setAttribute("stroke-width", "1.5");
+  path.setAttribute("stroke-linecap", "round");
+  svg.append(path);
+  return svg;
+}
+
 /** External links read as quiet controls; they leave the app entirely. */
 function externalLink(label: string, href: string): HTMLAnchorElement {
   const link = document.createElement("a");

web/src/style.css

@@ -1492,6 +1492,53 @@ body {
   border-style: dashed;
 }
 
+/* a delete that failed reads the same fault red the rest of the app uses,
+   right on the chip it happened to — no separate note element for it */
+.chip[data-tone="fault"] {
+  color: var(--signal-fault);
+  border-color: oklch(from var(--signal-fault) l c h / 55%);
+}
+
+/* the delete affordance nested in a present-subtitle chip (issue #223) */
+.chip-delete {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 1rem;
+  height: 1rem;
+  margin-inline-start: var(--space-1);
+  padding: 0;
+  background: none;
+  border: 0;
+  border-radius: var(--radius);
+  color: var(--ink-faint);
+  cursor: pointer;
+  transition:
+    color 150ms var(--ease-out),
+    background 150ms var(--ease-out);
+}
+
+.chip-delete:hover,
+.chip-delete:focus-visible {
+  color: var(--signal-fault);
+  background: oklch(from var(--signal-fault) l c h / 15%);
+}
+
+.chip-delete[data-armed="true"] {
+  color: var(--signal-fault);
+  background: oklch(from var(--signal-fault) l c h / 15%);
+}
+
+.chip-delete:disabled {
+  cursor: default;
+  opacity: 0.5;
+}
+
+.close-icon {
+  width: 0.625rem;
+  height: 0.625rem;
+}
+
 /* ---- manual subtitle deck (§9.3, §15, issue #203) ---------------------- */
 
 /* the panel opens under the file's own row, sharing the release deck's

web/src/subtitles.ts

@@ -258,6 +258,27 @@ export async function translateSubtitle(
   }
 }
 
+/* ---- delete (§15, issue #223) ------------------------------------------ */
+
+export type SubtitleDeleteOutcome = { kind: "done" } | { kind: "error"; detail: string };
+
+/**
+ * Deletes the sidecar and its row (§15: replacement is delete-then-fetch).
+ * The daemon also clears the language's satisfaction, so the reconcile loop
+ * picks the gap back up on its next tick — nothing to do here for that part.
+ */
+export async function deleteSubtitle(subtitleId: number): Promise<SubtitleDeleteOutcome> {
+  try {
+    const response = await fetch(`/api/subtitles/${subtitleId}`, { method: "DELETE" });
+    if (!response.ok) {
+      return { kind: "error", detail: await errorDetail(response) };
+    }
+    return { kind: "done" };
+  } catch {
+    return { kind: "error", detail: "daemon unreachable" };
+  }
+}
+
 /**
  * The slice of `/api/settings/subtitles` a manual action needs: which
  * languages the operator cares about, and which translation engines this