docs: overhaul documentation and add four new pages

- Add mining-workflow.md: end-to-end sentence mining guide
- Add anki-integration.md: AnkiConnect setup, field mapping, media generation, field grouping
- Add mpv-plugin.md: chord keybindings, subminer.conf options, script messages
- Add troubleshooting.md: common issues and solutions by category
- Rewrite architecture.md to reflect current ~1,400-line main.ts and ~35 services
- Expand development.md from ~25 lines to full dev guide
- Fix URLs to ksyasuda/SubMiner, version to v0.1.0, AppImage naming
- Update VitePress sidebar with three-group layout (Getting Started, Reference, Development)
- Update navigation in index.md, README.md, docs/README.md
- Remove obsolete planning artifacts (plan.md, investigation.md, comparison.md, composability.md, refactor-main-checklist.md)
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# MPV Plugin
The SubMiner mpv plugin (`subminer.lua`) provides in-player keybindings to control the overlay without leaving mpv. It communicates with SubMiner by invoking the AppImage (or binary) with CLI flags.
## Installation
```bash
cp plugin/subminer.lua ~/.config/mpv/scripts/
cp plugin/subminer.conf ~/.config/mpv/script-opts/
# or: make install-plugin
```
mpv must have IPC enabled for SubMiner to connect:
```ini
# ~/.config/mpv/mpv.conf
input-ipc-server=/tmp/subminer-socket
```
## Keybindings
All keybindings use a `y` chord prefix — press `y`, then the second key:
| Chord | Action |
| --- | --- |
| `y-y` | Open menu |
| `y-s` | Start overlay |
| `y-S` | Stop overlay |
| `y-t` | Toggle visible overlay |
| `y-i` | Toggle invisible overlay |
| `y-I` | Show invisible overlay |
| `y-u` | Hide invisible overlay |
| `y-o` | Open settings window |
| `y-r` | Restart overlay |
| `y-c` | Check status |
## Menu
Press `y-y` to open an interactive menu in mpv's OSD:
```text
SubMiner:
1. Start overlay
2. Stop overlay
3. Toggle overlay
4. Toggle invisible overlay
5. Open options
6. Restart overlay
7. Check status
```
Select an item by pressing its number.
## Configuration
Create or edit `~/.config/mpv/script-opts/subminer.conf`:
```ini
# Path to SubMiner binary. Leave empty for auto-detection.
binary_path=
# MPV IPC socket path. Must match input-ipc-server in mpv.conf.
socket_path=/tmp/subminer-socket
# Enable the texthooker WebSocket server.
texthooker_enabled=yes
# Port for the texthooker server.
texthooker_port=5174
# Window manager backend: auto, hyprland, sway, x11, macos.
backend=auto
# Start the overlay automatically when a file is loaded.
auto_start=no
# Show the visible overlay on auto-start.
auto_start_visible_overlay=no
# Invisible overlay startup: platform-default, visible, hidden.
# platform-default = hidden on Linux, visible on macOS/Windows.
auto_start_invisible_overlay=platform-default
# Show OSD messages for overlay status changes.
osd_messages=yes
# Logging level: debug, info, warn, error.
log_level=info
```
### Option Reference
| Option | Default | Values | Description |
| --- | --- | --- | --- |
| `binary_path` | `""` (auto-detect) | file path | Path to SubMiner binary |
| `socket_path` | `/tmp/subminer-socket` | file path | MPV IPC socket path |
| `texthooker_enabled` | `yes` | `yes` / `no` | Enable texthooker server |
| `texthooker_port` | `5174` | 165535 | Texthooker server port |
| `backend` | `auto` | `auto`, `hyprland`, `sway`, `x11`, `macos` | Window manager backend |
| `auto_start` | `no` | `yes` / `no` | Auto-start overlay on file load |
| `auto_start_visible_overlay` | `no` | `yes` / `no` | Show visible layer on auto-start |
| `auto_start_invisible_overlay` | `platform-default` | `platform-default`, `visible`, `hidden` | Invisible layer on auto-start |
| `osd_messages` | `yes` | `yes` / `no` | Show OSD status messages |
| `log_level` | `info` | `debug`, `info`, `warn`, `error` | Log verbosity |
## Binary Auto-Detection
When `binary_path` is empty, the plugin searches platform-specific locations:
**Linux:**
1. `~/.local/bin/SubMiner.AppImage`
2. `/opt/SubMiner/SubMiner.AppImage`
3. `/usr/local/bin/SubMiner`
4. `/usr/bin/SubMiner`
**macOS:**
1. `/Applications/SubMiner.app/Contents/MacOS/SubMiner`
2. `~/Applications/SubMiner.app/Contents/MacOS/SubMiner`
**Windows:**
1. `C:\Program Files\SubMiner\SubMiner.exe`
2. `C:\Program Files (x86)\SubMiner\SubMiner.exe`
3. `C:\SubMiner\SubMiner.exe`
## Backend Detection
When `backend=auto`, the plugin detects the window manager:
1. **macOS** — detected via platform or `OSTYPE`.
2. **Hyprland** — detected via `HYPRLAND_INSTANCE_SIGNATURE`.
3. **Sway** — detected via `SWAYSOCK`.
4. **X11** — detected via `XDG_SESSION_TYPE=x11` or `DISPLAY`.
5. **Fallback** — defaults to X11 with a warning.
## Script Messages
The plugin can be controlled from other mpv scripts or the mpv command line using script messages:
```
script-message subminer-start
script-message subminer-stop
script-message subminer-toggle
script-message subminer-toggle-invisible
script-message subminer-show-invisible
script-message subminer-hide-invisible
script-message subminer-menu
script-message subminer-options
script-message subminer-restart
script-message subminer-status
```
The `subminer-start` message accepts overrides:
```
script-message subminer-start backend=hyprland socket=/custom/path texthooker=no log-level=debug
```
## Lifecycle
- **File loaded**: If `auto_start=yes`, the plugin starts the overlay and applies visibility preferences after a short delay.
- **MPV shutdown**: The plugin sends a stop command to gracefully shut down both the overlay and the texthooker server.
- **Texthooker**: Starts as a separate subprocess before the overlay to ensure the app lock is acquired first.
## Using with the `subminer` Wrapper
The `subminer` wrapper script handles mpv launch, socket setup, and overlay lifecycle automatically. You do not need the plugin if you always use the wrapper.
The plugin is useful when you:
- Launch mpv from other tools (file managers, media centers).
- Want on-demand overlay control without the wrapper.
- Use mpv's built-in file browser or playlist features.
You can install both — the plugin provides chord keybindings for convenience, while the wrapper handles the full lifecycle.