feat: add subtitle generation and bundle Bun launcher runtime

- Add local subtitle generation and card timing review workflows
- Package cross-platform Bun runtimes, launchers, licenses, and source
- Consolidate release packaging and refresh v0.19.6 documentation

packaging/aur/subminer-bin/.SRCINFO

@@ -5,7 +5,11 @@ pkgbase = subminer-bin
 	url = https://github.com/ksyasuda/SubMiner
 	arch = x86_64
 	license = GPL-3.0-or-later
-	depends = bun
+	license = MIT
+	license = LGPL-2.0-only
+	license = LGPL-2.1-only
+	license = Apache-2.0
+	license = BSD-3-Clause
 	depends = fuse2
 	depends = glibc
 	depends = mpv