feat(launcher): bundle Bun runtime with launcher artifacts

- Use private Bun runtimes for installed and downloadable launchers
- Package runtime licenses, source manifests, and corresponding source releases
- Update launcher workflows, setup, updates, and documentation

README.md

@@ -195,7 +195,9 @@ wget https://github.com/ksyasuda/SubMiner/releases/latest/download/SubMiner.AppI
  && chmod +x ~/.local/bin/SubMiner.AppImage
 ```
 
-The AppImage is all you need. The optional `subminer` command-line launcher runs on [Bun](https://bun.sh), and first-run setup can install both for you. To grab it manually instead, install Bun first, then:
+The AppImage is all you need. First-run setup can install the optional `subminer` command-line launcher. Every current launcher uses Bun included with the app, so you do not need Bun installed or on `PATH`.
+
+You can also download the launcher wrapper directly:
 
 ```bash
 wget https://github.com/ksyasuda/SubMiner/releases/latest/download/subminer -O ~/.local/bin/subminer \
@@ -216,6 +218,8 @@ Download the latest DMG from [GitHub Releases](https://github.com/ksyasuda/SubMi
 
 Download and run the latest installer (`.exe`) from [GitHub Releases](https://github.com/ksyasuda/SubMiner/releases/latest).
 
+For terminal use, download `subminer.cmd`. It locates the installed app and uses its private Bun runtime.
+
 </details>
 
 <details>
@@ -227,14 +231,14 @@ See the [build-from-source guide](https://docs.subminer.moe/installation#from-so
 
 ### 2. Launch & Set Up
 
-Run SubMiner and the first-run setup wizard will guide you through importing Yomitan dictionaries and optionally installing the `subminer` command-line launcher.
+Run the installed app and the first-run setup wizard will guide you through importing Yomitan dictionaries and optionally installing the `subminer` command-line launcher. Setup records a custom app location when needed, and the wrapper runs with the app's private Bun runtime.
 
 ```bash
 # Linux
-subminer app --setup
+~/.local/bin/SubMiner.AppImage --setup
 
-# macOS — open SubMiner.app, or:
-subminer app --setup
+# macOS
+open -a SubMiner --args --setup
 ```
 
 On **Windows**, just run `SubMiner.exe` and the setup will open automatically on first launch.
@@ -266,6 +270,7 @@ SubMiner builds on the work of these open-source projects:
 | [Anacreon-Script](https://github.com/friedrich-de/Anacreon-Script)                          | Inspiration for the mining workflow                                     |
 | [asbplayer](https://github.com/killergerbah/asbplayer)                                      | Inspiration for subtitle sidebar and logic for YouTube subtitle parsing |
 | [Bee's Character Dictionary](https://github.com/bee-san/Japanese_Character_Name_Dictionary) | Character name recognition in subtitles                                 |
+| [Bun](https://github.com/oven-sh/bun)                                                       | Bundled runtime for the `subminer` command-line launcher                |
 | [GameSentenceMiner](https://github.com/bpwhelan/GameSentenceMiner)                          | Inspiration for Electron overlay with Yomitan integration               |
 | [jellyfin-mpv-shim](https://github.com/jellyfin/jellyfin-mpv-shim)                          | Jellyfin integration                                                    |
 | [Jimaku.cc](https://jimaku.cc)                                                              | Japanese subtitle search and downloads                                  |
@@ -275,4 +280,6 @@ SubMiner builds on the work of these open-source projects:
 
 ## License
 
-[GNU General Public License v3.0](LICENSE)
+SubMiner is released under the [GNU General Public License v3.0](LICENSE).
+
+Release packages also bundle an unmodified copy of [Bun](https://github.com/oven-sh/bun), which is MIT licensed and statically links JavaScriptCore (LGPL 2.0) and TinyCC (LGPL 2.1). Its license texts and third-party notices ship inside the app under `resources/bun/licenses`, and each release publishes `bun-v1.3.5-source.tar.gz` with the corresponding source. See [Bundled Bun runtime](https://docs.subminer.moe/installation#bundled-bun-runtime).