docs: update documentation for latest changes

- Add stt-ptt language support documentation
- Add rofi-project-opener module documentation
- Add rofi-project-opener package documentation
- Update zellij-ps documentation
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- Update AGENTS.md with latest commands

docs/modules/home-manager/cli/stt-ptt.md

@@ -104,6 +104,42 @@ Notification timeout in milliseconds for the recording indicator.
 - Default: `3000`
 - Example: `5000` (5 seconds), `0` (persistent)
 
+### `cli.stt-ptt.language`
+
+Language for speech recognition. Use "auto" for automatic language detection, or specify a language code for better accuracy.
+
+- Type: `enum ["auto", "en", "es", "fr", "de", "it", "pt", "ru", "zh", "ja", "ko", "ar", "hi", "tr", "pl", "nl", "sv", "da", "fi", "no", "vi", "th", "id", "uk", "cs"]`
+- Default: `"auto"`
+
+**Auto-detection**: When set to "auto", whisper.cpp analyzes the audio to determine the spoken language automatically.
+
+**Language specification**: Specifying a language code improves transcription accuracy if you know the language in advance.
+
+```nix
+# Automatic language detection (default)
+language = "auto";
+
+# Force English transcription
+language = "en";
+
+# Spanish transcription
+language = "es";
+```
+
+**Common language codes:**
+
+| Code | Language |
+|------|----------|
+| `en` | English |
+| `es` | Spanish |
+| `fr` | French |
+| `de` | German |
+| `zh` | Chinese |
+| `ja` | Japanese |
+| `ko` | Korean |
+
+whisper.cpp supports 100+ languages. See whisper.cpp documentation for the full list.
+
 ## Usage
 
 After enabling, bind `stt-ptt start` and `stt-ptt stop` to a key:
@@ -166,6 +202,16 @@ cli.stt-ptt = {
 };
 ```
 
+### Language-Specific Transcription
+
+```nix
+cli.stt-ptt = {
+  enable = true;
+  model = "ggml-large-v3-turbo";
+  language = "es";  # Force Spanish transcription
+};
+```
+
 ### High Quality with NVIDIA GPU
 
 ```nix
@@ -221,6 +267,7 @@ The module sets these automatically:
 | Variable | Value |
 |----------|-------|
 | `STT_MODEL` | `~/.local/share/stt-ptt/models/<model>.bin` |
+| `STT_LANGUAGE` | Configured language ("auto" by default) |
 | `STT_NOTIFY_TIMEOUT` | Configured timeout in ms |
 
 ## Requirements