Add .npmrc for bun usage and update dependencies

- Created a new .npmrc file to enforce bun usage.
- Bumped version numbers for multiple packages to 0.1.9 in bun.lock.
- Added react-sound-visualizer dependency to enhance audio visualization features.
- Introduced convert:assets script in package.json for asset optimization.
- Updated CONTRIBUTING.md with instructions for converting assets to web formats.
- Added documentation files for API endpoints and developer guidelines in the docs directory.

docs/overview/recording-transcription.mdx

@@ -0,0 +1,64 @@
+---
+title: "Recording & Transcription"
+description: "Record audio and transcribe speech with Whisper"
+---
+
+## Recording
+
+Voicebox includes built-in recording capabilities for creating voice samples and capturing audio.
+
+### Features
+
+- **Microphone input** - Record from any audio input device
+- **System audio capture** - Record desktop audio (macOS/Windows)
+- **Waveform visualization** - See audio levels in real-time
+- **Multiple formats** - Export as WAV, MP3, or M4A
+
+### How to Record
+
+<Steps>
+  <Step title="Select Input">
+    Choose your microphone or system audio
+  </Step>
+  <Step title="Start Recording">
+    Click the record button and speak clearly
+  </Step>
+  <Step title="Stop & Save">
+    Click stop when finished
+  </Step>
+  <Step title="Use or Export">
+    Use as voice sample or export to file
+  </Step>
+</Steps>
+
+## Transcription
+
+Automatic speech-to-text powered by OpenAI's Whisper model.
+
+### Features
+
+- **High accuracy** - Industry-leading speech recognition
+- **Multiple languages** - Supports 50+ languages
+- **Automatic detection** - Language auto-detection
+- **Timestamps** - Word-level timing information
+
+### How to Transcribe
+
+<Steps>
+  <Step title="Select Audio">
+    Choose a recording or upload an audio file
+  </Step>
+  <Step title="Choose Language">
+    Select language or use auto-detect
+  </Step>
+  <Step title="Transcribe">
+    Click transcribe and wait for processing
+  </Step>
+  <Step title="Review & Export">
+    Review text and export as needed
+  </Step>
+</Steps>
+
+<Tip>
+  Transcription is useful for creating voice samples from existing audio or generating subtitles.
+</Tip>