fix: restore subtitle playback keybindings

src/core/services/mpv.test.ts

@@ -489,7 +489,7 @@ test('MpvIpcClient updates current audio stream index from track list', async ()
   assert.equal(client.currentAudioStreamIndex, 11);
 });
 
-test('MpvIpcClient playNextSubtitle preserves a manual paused state', async () => {
+test('MpvIpcClient playNextSubtitle starts playback from paused state and auto-pauses at end', async () => {
   const commands: unknown[] = [];
   const client = new MpvIpcClient('/tmp/mpv.sock', makeDeps());
   (client as any).send = (payload: unknown) => {
@@ -507,9 +507,12 @@ test('MpvIpcClient playNextSubtitle preserves a manual paused state', async () =
 
   client.playNextSubtitle();
 
-  assert.equal((client as any).pendingPauseAtSubEnd, false);
+  assert.equal((client as any).pendingPauseAtSubEnd, true);
   assert.equal((client as any).pauseAtTime, null);
-  assert.deepEqual(commands, [{ command: ['sub-seek', 1] }]);
+  assert.deepEqual(commands, [
+    { command: ['sub-seek', 1] },
+    { command: ['set_property', 'pause', false] },
+  ]);
 });
 
 test('MpvIpcClient playNextSubtitle still auto-pauses at end while already playing', async () => {

src/core/services/mpv.ts

@@ -522,14 +522,12 @@ export class MpvIpcClient implements MpvClient {
   }
 
   playNextSubtitle(): void {
-    if (this.playbackPaused === true) {
-      this.pendingPauseAtSubEnd = false;
-      this.pauseAtTime = null;
-      this.send({ command: ['sub-seek', 1] });
-      return;
-    }
     this.pendingPauseAtSubEnd = true;
+    this.pauseAtTime = null;
     this.send({ command: ['sub-seek', 1] });
+    if (this.playbackPaused === true) {
+      this.send({ command: ['set_property', 'pause', false] });
+    }
   }
 
   restorePreviousSecondarySubVisibility(): void {

src/core/services/session-bindings.test.ts

@@ -2,7 +2,8 @@ import assert from 'node:assert/strict';
 import test from 'node:test';
 import type { Keybinding } from '../../types';
 import type { ConfiguredShortcuts } from '../utils/shortcut-config';
-import { SPECIAL_COMMANDS } from '../../config/definitions';
+import { DEFAULT_CONFIG, DEFAULT_KEYBINDINGS, SPECIAL_COMMANDS } from '../../config/definitions';
+import { resolveConfiguredShortcuts } from '../utils/shortcut-config';
 import { compileSessionBindings } from './session-bindings';
 
 function createShortcuts(overrides: Partial<ConfiguredShortcuts> = {}): ConfiguredShortcuts {
@@ -179,6 +180,35 @@ test('compileSessionBindings drops conflicting bindings that canonicalize to the
   ]);
 });
 
+test('compileSessionBindings keeps default replay and next subtitle session actions on Linux', () => {
+  const result = compileSessionBindings({
+    shortcuts: resolveConfiguredShortcuts(DEFAULT_CONFIG, DEFAULT_CONFIG),
+    keybindings: DEFAULT_KEYBINDINGS,
+    statsToggleKey: DEFAULT_CONFIG.stats.toggleKey,
+    platform: 'linux',
+    rawConfig: DEFAULT_CONFIG,
+  });
+
+  assert.deepEqual(
+    result.warnings.filter((warning) => warning.kind === 'conflict'),
+    [],
+  );
+  const bySignature = new Map(
+    result.bindings.map((binding) => [
+      `${binding.key.modifiers.join('+')}+${binding.key.code}`,
+      binding,
+    ]),
+  );
+
+  const replay = bySignature.get('ctrl+shift+KeyH');
+  assert.equal(replay?.actionType, 'session-action');
+  assert.equal(replay?.actionId, 'replayCurrentSubtitle');
+
+  const next = bySignature.get('ctrl+shift+KeyL');
+  assert.equal(next?.actionType, 'session-action');
+  assert.equal(next?.actionId, 'playNextSubtitle');
+});
+
 test('compileSessionBindings omits disabled bindings', () => {
   const result = compileSessionBindings({
     shortcuts: createShortcuts({