Refactor code structure for improved readability and maintainability

docs/reference/DOCS.md

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+# Reference Documentation
+
+## Home Assistant Docs
+
+### Voice
+
+[Assist - Talk to your smart home with Home Assistant](https://www.home-assistant.io/voice_control/)

docs/reference/INITIAL_PARTS.md

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+# Initial Parts Listing
+
+## Hardware
+
+### 3d Printed Case
+
+- Use Shapr3d MCP connector for drafting the case
+- Similar shape as the new Amazon Echo but tailored for the parts below. [Amazon Echo](https://www.amazon.com/Amazon-Echo-Spot-2024-release-Smart-alarm-clock-with-vibrant-sound-Alexa-Black/dp/B0BFC7WQ6R/ref=sr_1_7?crid=39ZC4YOELAHKT&dib=eyJ2IjoiMSJ9.MkYgF7yzZWcotc9W_vdA47DFhQRYDitUNtDSzwhI8PZURCSQDEzqEOgLp5pwyTV3tqPVz4VavhRVBl26xSh9vY37OH00-PmFaPftRtzQw2jQxE57EJ0b46vK_FesG3JZfYIBr_hWWaSlnA3YgAKeabVEz3Fct3NzKmkfiCTKc0QOlY3qOrVBmvkD5losTVjsA6cE7kv4nqnYf9-arGuuLTZHPpDwvwJW4VN6lOOv384.JO9uC4qC0LjlpguWtQGYOWkIfyBhZ9gD2qVNfGQTsM4&dib_tag=se&keywords=alexa&qid=1790769921&sprefix=alex%2Caps%2C147&sr=8-7&th=1)
+  
+### Switches
+
+- [1x4 4 Independent Key Button Keypad Keyboard Module](https://www.aliexpress.us/item/3256805472280274.html?spm=a2g0o.order_list.order_list_main.16.10241802RGGd1k&gatewayAdapt=glo2usa)
+  - 
+
+## Electronics
+
+### Display Component
+
+- [2.4" 2.42 inch 128x64 OLED LCD Display Module SSD1309 12864 4 Pin IIC I2C Serial Interface](https://www.amazon.com/dp/B0G52DXLHM?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_13&th=1)
+  
+### Audio Components
+
+- [MAX98357A I2S Class D Audio Amplifier – 3W Digital Power Module](https://www.aliexpress.us/item/3256810042553623.html?spm=a2g0o.order_list.order_list_main.56.10241802RGGd1k&gatewayAdapt=glo2usa)
+- [4 Ohm 3W/8 Ohm 2W Speaker 1.25 or 2.0 Terminal Small Cavity Notebook Computer 3525/2535 Ultra-thin Box Speaker](https://www.aliexpress.us/item/3256808081586003.html)
+- [INMP441 Omnidirectional Microphone Module MEMS High Precision Digital Output Sensor Module Low Power](https://www.aliexpress.us/item/3256808883407984.html?spm=a2g0o.order_list.order_list_main.71.10241802RGGd1k&gatewayAdapt=glo2usa)
+
+### LED Component
+
+- [8 Bits WS2812 RGB LED Stick 8 X WS2812B 5050 Full Color RGB LED Module Built-in Drivers](https://www.amazon.com/dp/B09YTLY6CK?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_21)
+
+### Processor
+
+- [AITRIP 3PCS ESP32-S3-DevKitC-1-N16R8](https://www.amazon.com/dp/B0CGYXJB6Y?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_37&th=1)
+