add --setup flag to force re-open first-run setup wizard

- `openFirstRunSetupWindow` accepts a `force` parameter that bypasses the completed-state guard
- `--setup` arg sets `force=true` so the wizard opens even after setup is done
- README and docs updated to document `subminer app --setup` as the explicit setup command
- Fix docs tip: `subminer --setup` → `subminer app --setup`
- Collapse extra launch examples into a `<details>` block in installation.md

README.md

@@ -243,7 +243,14 @@ See the [build-from-source guide](https://docs.subminer.moe/installation#from-so
 
 ### 2. First Launch
 
-Run the app. On first launch SubMiner starts in the system tray, creates a default config, and opens a setup popup to finish config, install the mpv plugin, and configure Yomitan dictionaries.
+```bash
+subminer app --setup            # launch the first-run setup wizard
+```
+
+SubMiner creates a default config, starts in the system tray, and opens a setup popup that walks you through installing the mpv plugin and configuring Yomitan dictionaries. Follow the on-screen steps to complete setup.
+
+> [!NOTE]
+> On Windows, run `SubMiner.exe` directly — it opens the setup wizard automatically on first launch.
 
 ### 3. Verify Setup
 

docs-site/installation.md

@@ -390,12 +390,39 @@ For enrichment configuration (sentence, audio, screenshot fields), see [Anki Int
 
 ## First-Run Setup
 
-On first launch SubMiner creates a default config file automatically and opens a setup popup. You do **not** need to create the config manually — SubMiner handles it.
+Run the setup wizard to create a default config and finish initial configuration. You do **not** need to create the config manually — SubMiner handles it.
 
 ```bash
-# Play a file (default plugin config auto-starts visible overlay and waits for annotation readiness; first launch opens first-run setup popup)
-subminer video.mkv
+subminer app --setup
+```
 
+> [!NOTE]
+> On Windows, run `SubMiner.exe` directly — it opens the setup wizard automatically on first launch.
+
+The setup popup walks you through:
+
+- **Config file**: auto-created at `~/.config/SubMiner/config.jsonc` (Linux/macOS) or `%APPDATA%\SubMiner\config.jsonc` (Windows)
+- **mpv plugin**: install the bundled Lua plugin for in-player keybindings
+- **Yomitan dictionaries**: import at least one dictionary so lookups work
+- **Windows shortcut** _(Windows only)_: optionally create a `SubMiner mpv` Start Menu/Desktop shortcut
+
+The `Finish setup` button stays disabled until the plugin is installed and at least one dictionary is imported. Once you finish, SubMiner will not show the popup again.
+
+> [!TIP]
+> You can re-open the setup popup at any time with `subminer app --setup` or `SubMiner.AppImage --setup`.
+
+Once setup is complete, play a video to verify everything works:
+
+```bash
+subminer video.mkv
+```
+
+You should see the overlay appear over mpv. If subtitles are loaded in the video, they will appear as interactive text in the overlay.
+
+<details>
+<summary><b>More launch examples</b></summary>
+
+```bash
 # Optional explicit overlay start for setups with plugin auto_start=no
 subminer --start video.mkv
 
@@ -410,19 +437,7 @@ SubMiner.AppImage --start --dev
 SubMiner.AppImage --help    # Show all CLI options
 ```
 
-The setup popup walks you through:
-
-- **Config file**: auto-created at `~/.config/SubMiner/config.jsonc` (Linux/macOS) or `%APPDATA%\SubMiner\config.jsonc` (Windows)
-- **mpv plugin**: install the bundled Lua plugin for in-player keybindings
-- **Yomitan dictionaries**: import at least one dictionary so lookups work
-- **Windows shortcut** _(Windows only)_: optionally create a `SubMiner mpv` Start Menu/Desktop shortcut
-
-The `Finish setup` button stays disabled until the plugin is installed and at least one dictionary is imported. Once you finish, SubMiner will not show the popup again.
-
-> [!TIP]
-> You can re-open the setup popup at any time with `subminer --setup` or `SubMiner.AppImage --setup`.
-
-You should see the overlay appear over mpv. If subtitles are loaded in the video, they will appear as interactive text in the overlay.
+</details>
 
 ## Verify Setup
 

src/main.ts

@@ -2318,8 +2318,8 @@ const openFirstRunSetupWindowHandler = createOpenFirstRunSetupWindowHandler({
   logError: (message, error) => logger.error(message, error),
 });
 
-function openFirstRunSetupWindow(): void {
-  if (firstRunSetupService.isSetupCompleted()) {
+function openFirstRunSetupWindow(force = false): void {
+  if (!force && firstRunSetupService.isSetupCompleted()) {
     return;
   }
   openFirstRunSetupWindowHandler();
@@ -3238,12 +3238,12 @@ const { appReadyRuntimeRunner } = composeAppReadyRuntime({
     handleFirstRunSetup: async () => {
       const snapshot = await firstRunSetupService.ensureSetupStateInitialized();
       appState.firstRunSetupCompleted = snapshot.state.status === 'completed';
-      if (
-        appState.initialArgs &&
-        shouldAutoOpenFirstRunSetup(appState.initialArgs) &&
-        snapshot.state.status !== 'completed'
-      ) {
-        openFirstRunSetupWindow();
+      const args = appState.initialArgs;
+      if (args && shouldAutoOpenFirstRunSetup(args)) {
+        const force = Boolean(args.setup);
+        if (force || snapshot.state.status !== 'completed') {
+          openFirstRunSetupWindow(force);
+        }
       }
     },
     startJellyfinRemoteSession: async () => {