feat(config): unify mpv plugin options under main config and add CSS/Ani

- Replace subminer.conf plugin config with mpv.* fields in config.jsonc
- Add socketPath, backend, autoStartSubMiner, pauseUntilOverlayReady, aniskipEnabled/buttonKey, subminerBinaryPath to mpv config
- Add subtitleSidebar.css field; migrate legacy sidebar appearance fields
- Add paintOrder and WebkitTextStroke to subtitle style options
- Update default subtitle/sidebar fontFamily to CJK-first stack
- Fix overlay visible state surviving mpv y-r restart
- Fix live config saves applying subtitle CSS immediately to open overlays
- Migrate legacy primary/secondary subtitle appearance into subtitleStyle.css on load
- Switch AniSkip button key setting to click-to-learn key capture

launcher/main.test.ts

@@ -157,10 +157,10 @@ test('mpv socket command returns socket path from plugin runtime config', () =>
     const homeDir = path.join(root, 'home');
     const xdgConfigHome = path.join(root, 'xdg');
     const expectedSocket = path.join(root, 'custom', 'subminer.sock');
-    fs.mkdirSync(path.join(xdgConfigHome, 'mpv', 'script-opts'), { recursive: true });
+    fs.mkdirSync(path.join(xdgConfigHome, 'SubMiner'), { recursive: true });
     fs.writeFileSync(
-      path.join(xdgConfigHome, 'mpv', 'script-opts', 'subminer.conf'),
-      `socket_path=${expectedSocket}\n`,
+      path.join(xdgConfigHome, 'SubMiner', 'config.jsonc'),
+      JSON.stringify({ mpv: { socketPath: expectedSocket } }),
     );
 
     const result = runLauncher(['mpv', 'socket'], makeTestEnv(homeDir, xdgConfigHome));
@@ -175,10 +175,10 @@ test('mpv status exits non-zero when socket is not ready', () => {
     const homeDir = path.join(root, 'home');
     const xdgConfigHome = path.join(root, 'xdg');
     const socketPath = path.join(root, 'missing.sock');
-    fs.mkdirSync(path.join(xdgConfigHome, 'mpv', 'script-opts'), { recursive: true });
+    fs.mkdirSync(path.join(xdgConfigHome, 'SubMiner'), { recursive: true });
     fs.writeFileSync(
-      path.join(xdgConfigHome, 'mpv', 'script-opts', 'subminer.conf'),
-      `socket_path=${socketPath}\n`,
+      path.join(xdgConfigHome, 'SubMiner', 'config.jsonc'),
+      JSON.stringify({ mpv: { socketPath } }),
     );
     const result = runLauncher(['mpv', 'status'], makeTestEnv(homeDir, xdgConfigHome));
 
@@ -321,7 +321,7 @@ test('launcher forwards --args to mpv as parsed tokens', { timeout: 15000 }, ()
 
     fs.mkdirSync(binDir, { recursive: true });
     fs.mkdirSync(path.join(xdgConfigHome, 'SubMiner'), { recursive: true });
-    fs.mkdirSync(path.join(xdgConfigHome, 'mpv', 'script-opts'), { recursive: true });
+    fs.mkdirSync(path.join(xdgConfigHome, 'SubMiner'), { recursive: true });
     fs.writeFileSync(videoPath, 'fake video content');
     fs.writeFileSync(
       path.join(xdgConfigHome, 'SubMiner', 'setup-state.json'),
@@ -336,8 +336,15 @@ test('launcher forwards --args to mpv as parsed tokens', { timeout: 15000 }, ()
       }),
     );
     fs.writeFileSync(
-      path.join(xdgConfigHome, 'mpv', 'script-opts', 'subminer.conf'),
-      `socket_path=${socketPath}\nauto_start=no\nauto_start_visible_overlay=no\nauto_start_pause_until_ready=no\n`,
+      path.join(xdgConfigHome, 'SubMiner', 'config.jsonc'),
+      JSON.stringify({
+        auto_start_overlay: false,
+        mpv: {
+          socketPath,
+          autoStartSubMiner: false,
+          pauseUntilOverlayReady: false,
+        },
+      }),
     );
     fs.writeFileSync(appPath, '#!/bin/sh\nexit 0\n');
     fs.chmodSync(appPath, 0o755);
@@ -401,7 +408,7 @@ test('launcher forwards non-info log level into mpv plugin script opts', { timeo
 
     fs.mkdirSync(binDir, { recursive: true });
     fs.mkdirSync(path.join(xdgConfigHome, 'SubMiner'), { recursive: true });
-    fs.mkdirSync(path.join(xdgConfigHome, 'mpv', 'script-opts'), { recursive: true });
+    fs.mkdirSync(path.join(xdgConfigHome, 'SubMiner'), { recursive: true });
     fs.writeFileSync(videoPath, 'fake video content');
     fs.writeFileSync(
       path.join(xdgConfigHome, 'SubMiner', 'setup-state.json'),
@@ -416,8 +423,15 @@ test('launcher forwards non-info log level into mpv plugin script opts', { timeo
       }),
     );
     fs.writeFileSync(
-      path.join(xdgConfigHome, 'mpv', 'script-opts', 'subminer.conf'),
-      `socket_path=${socketPath}\nauto_start=yes\nauto_start_visible_overlay=yes\nauto_start_pause_until_ready=yes\n`,
+      path.join(xdgConfigHome, 'SubMiner', 'config.jsonc'),
+      JSON.stringify({
+        auto_start_overlay: true,
+        mpv: {
+          socketPath,
+          autoStartSubMiner: true,
+          pauseUntilOverlayReady: true,
+        },
+      }),
     );
     fs.writeFileSync(appPath, '#!/bin/sh\nexit 0\n');
     fs.chmodSync(appPath, 0o755);
@@ -471,7 +485,7 @@ test('launcher routes youtube urls through regular playback startup', { timeout:
 
     fs.mkdirSync(binDir, { recursive: true });
     fs.mkdirSync(path.join(xdgConfigHome, 'SubMiner'), { recursive: true });
-    fs.mkdirSync(path.join(xdgConfigHome, 'mpv', 'script-opts'), { recursive: true });
+    fs.mkdirSync(path.join(xdgConfigHome, 'SubMiner'), { recursive: true });
     fs.writeFileSync(
       path.join(xdgConfigHome, 'SubMiner', 'setup-state.json'),
       JSON.stringify({
@@ -485,8 +499,15 @@ test('launcher routes youtube urls through regular playback startup', { timeout:
       }),
     );
     fs.writeFileSync(
-      path.join(xdgConfigHome, 'mpv', 'script-opts', 'subminer.conf'),
-      `socket_path=${socketPath}\nauto_start=yes\nauto_start_visible_overlay=yes\nauto_start_pause_until_ready=yes\n`,
+      path.join(xdgConfigHome, 'SubMiner', 'config.jsonc'),
+      JSON.stringify({
+        auto_start_overlay: true,
+        mpv: {
+          socketPath,
+          autoStartSubMiner: true,
+          pauseUntilOverlayReady: true,
+        },
+      }),
     );
     fs.writeFileSync(
       appPath,